**CURRICULUM VITAE**

** **

Updated: September 10, 2005

** **

**Jaime Ramírez-Angulo** is currently
Klipsch Professor, IEEE fellow, and Director of the Mixed-Signal VLSI lab at
the Klipsch School of Electrical and
Computer Engineering, New Mexico State University ( Las Cruces, New Mexico), USA. He received a degree
in Communications and Electronic Engineering (Professional degree), a
M.S.E.E. from the National Polytechnic Institute in Mexico City and a Dr.-Ing
degree form the University of Stuttgart in Stuttgart, Germany in 1974, 1976 and
1982 respectively. He was professor at the National Institute for Astrophysics
Optics and Electronics (INAOE) and at Texas A&M University. His research is
related to various aspects of design and test of analog and mixed-signal Very Large Scale Integrated Circuits. He has
made numerous contributions to this field
which have been reported in over three
hundred fifty publications in
the most prestigious journals and conferences in analog circuit design. He has
two high technology patents and has held numerous invited and keynote
presentations. He has been a consultant to Texas Instruments, NASA-ACE,
NASA-Ames and Oak Ridge National Laboratories. His research has been supported
by National Science Foundation, Sandia National Labs, Engineering Foundation,
Texas Instruments and Agilent. He received the prestigious URC University
Research Council for exceptional achievements in creative scholarly
activities and the Westhafer award for
Excellence in Research and Creativity in
March and May 2002 respectively. The Westhafer award is the highest faculty award for research
merits at New Mexico State University.
On October 2002 he was named Paul W.
Klipsch Distinguished Professor and is currently and IEEE distinguished
lecturer for the period 2003-2005.

**1. PERSONAL DATA AND HOW TO CONTACT ME**

**2. DEGREES**

**3. RESEARCH **

**6. PUBLICATIONS**

** **

**7. FUNDING**

**10. MOST IMPORTANT RESEARCH CONTRIBUTIONS**

**12. PATENTS**

** **

Professor of Electrical and Computer Engineering Field of specialty: VLSI/Microelectronics

Director of VLSI laboratory at New Mexico State University

Address: New Mexico State University

Klipsch School of Electrical and Computer Engineering, Las Cruces, New Mexico 88003-0001

Tel. (505) 646‑4406, FAX (505) 646-1435, email: jramirez@nmsu.edu http://www.ece.nmsu.edu/people/ramirez-angulo.html

Home address: 7309 Desierto Pais

El Paso, TX 79912

Tel: (915) 585-0279

Date of Birth: February 18, 1952

Marital Status: Married, four children

** **

- Ph.D. in Electrical Engineering
*University of Stuttgart,*Stuttgart, Germany, 1982.

Thesis Design of Electronic Circuits: Low Computational Cost Algorithms for Production Yield Improvement (Field: Computer Aided. Design of Electronic Circuits) Ph.D. at University of Stuttgart from 1977-1982

- MSEE. CINVESTAV-IPN (
*Center for Advanced Studies and Research,**National Polytechnic Institute),*Mexico City. 1976.

Thesis: Design of Acoustic Surface Wave Filters (Masters Degree at CINVESTAV-IPN from 1974-1976)

- Communications and Electronics Engineer. (Professional Degree)
*National Polytechnic Institute of México (IPN)*, México City. 1974. (B.Sc. at IPN from 1969-1973)

Microelectronics, Analog and Digital VLSI Circuit Design, Integrated Continuous-time and Switched-Capacitor Filters, Current-mode techniques for Analog Signal Processing, Neural and Fuzzy Networks, Device Modeling, Fault detection in analog and digital VLSI systems. BiCMOS circuit design, low-voltage low-power design techniques, RF microelectronic circuit design. High speed/High Slew rate Operational Amplifiers

1982-1984 Researcher and Instructor at INAOE (Instituto Nacional de Astrofisica, Optica y Electronica), Tonantzintla, Puebla, Mexico. Field of work: Microelectronic Circuit Design

1985-1989 Assistant Professor at Texas A&M University, College Station, Texas. Field of work: Microelectronic Circuit Design

1990-Present Associate Professor, Full Professor (since August 95), New Mexico State University. Field of work: Microelectronic Circuit Design

**5b.
Courses Taught**

** **

**E**lectronic Devices and
Circuits, Design of Circuits with Operational Amplifiers, Active** **Filters, Analog Microelectronics,
Computer Aided Circuit Design, Digital VLSI System Design, Fuzzy Processors,
CMOS RF Microelectronics, A/D and D/A conversion techniques.

** **

- IEEE Fellow for Contributions to Design Methodologies for Analog Signal Processing Integrated Circuits, January 1, 2000

- New Mexico State University Award for Exceptional Achievements in Creative Scholarly Activity, March 19 2002

- New Mexico State University Westhafer Award for Excellence in Research creative Activity, April 19, 2002 (Highest research award at New Mexico State University)

- Paul and Valerie Klipsch Distinguished Professorship, October 11, 2002

- IEEE distinguished lecturer for the period 2004-2005

- Invited on a regular basis (two to three times a year) to give plenary presentations at professional conferences and workshops/

- Over 350 hundred publications in some of the most prestigious professional journals and conferences in analog and mixed-signal VLSI design

** **

1.
"Fabrication of Thin Fim Hybrid
microcircuits", J. Ramírez‑Angulo A. Ortiz‑Gonzalez and J. Fragoso‑Lopez, *Physics and Technology of Semiconductors (in
spanish)*, vol.1, No. 3, pp. 270‑280, March 1983.

2.
"AROMA: An Area Optimized CAD
Program for Cascade SC Filter Design",
E. Sánchez‑Sinencio and J. Ramírez‑Angulo, *IEEE Trans. on Computer Aided Design*,
vol. CAD‑4, No.3, pp. 296‑302, July 1985.

3.
"Component Quantization Effects
on Continuous Time Filters", J. Ramírez‑Angulo, R. L. Geiger and E.
Sánchez‑Sinencio, *IEEE Transactions
on Circuits and Systems*, vol. CAS‑33, No. 6, pp. 651‑659, June 1986.

4.
"Characterization, Evaluation and
Comparison of Laser-Trimmed Film Resistors," J. Ramírez-Angulo, R. L.
Geiger and E. Sánchez-Sinencio, *IEEE
Journal of Solid State Circuits*, vol. SC-22, No. 6, pp. 1177-1189, December
1987.

5.
"New Laser-Trimmed Film Resistor
Structures for Very High Stability Requirements," J. Ramírez-Angulo and R.
L. Geiger, *IEEE Transactions on Electron
Devices*, vol. ED-35, No. 4, pp. 516-518, April 1988.

6.
"Design of Active Filters for
Large Variations in the Gain-Bandwidth Product," J. Ramírez-Angulo, *Proceedings of the IEEE, vol. 76, No. 10,
pp. 1368-1370,* October 1988.

7.
"FIESTA: A Filter Educational
Synthesis Teaching-Aid," M. Kobe, J. Ramírez-Angulo, E. Sánchez-Sinencio, *IEEE Transactions on Education*, vol. 32,
No. 3. pp. 280-286, August 1989.

8.
"OTA-Based Nonlinear Function
Approximation," E. Sánchez-Sinencio, J. Ramírez-Angulo and B. Linares
Barranco, *IEEE Journal of Solid Sate
Circuits*, vol. 24, No. 6, pp. 1576-1586, December 1989.

9.
"Active Compensation of
Operational Transconductance Amplifier Filters Using Partial Positive
Feedback," J. Ramírez-Angulo and E. Sánchez-Sinencio, *IEEE Journal of Solid State Circuits*, vol. SC-25, No. 4, pp.
1024-1028, August 1990.** **

10.
”Extended Transconductance
Adjustment/linearisation Technique", W. J. Adams and J. Ramírez-Angulo, *Electronics Letters*, vol. 27, No. 10,
pp. 842-844, May 1991.

11.
"Applications of Composite BICMOS
Transistors," J. Ramírez-Angulo, M. Deyong and W.J. Adams, *Electronics
Letters,* Vol. 27, No. 24, pp. 2236-2238, Nov. 1991.

12.
"A High Frequency Low Voltage
CMOS diode", J. Ramírez-Angulo, *Electronics
Letters*, Vol. 28, No. 3, pp. 299-301, January 1992.

13.
"Current Mode Continuous-Time
Filters: Two Design Approaches", J. Ramírez-Angulo, E. Sánchez-Sinencio
and M. Robinson, *IEEE Transactions on
Circuits and Systems*, vol. 39, No. 6, June 1992, pp. 337-341.

14.
"Programmable BiCMOS
Transconductor for C-TA filters", J. Ramírez-Angulo and E.
Sánchez-Sinencio, *Electronics Letters*,
vol. 28, No. 13, June 4th 1992, pp. 1185-1187.

15.
" A low-voltage vertical BiCMOS
OTA", J. Ramírez-Angulo, *IEE
proceedings Part G*, Vol. 139, No. 4, August 1992, pp. 553-556

16.
"Highly Linear Four Quadrant
BiCMOS Analogue Multiplier", Jaime Ramírez-Angulo, *Electronics Letters*, vol. 28, No. 19, September 10th 1992, pp.
1783-178.

17.
"A BICMOS Current Buffer
Rectifier," J. Ramírez-Angulo, *IEEE
Transactions on Circuits and Systems*, vol. 39, No. 10, Oct. 92, pp.
849-851.

18.
"A Compact Current controlled
CMOS Waveform Generator," J. Ramírez-Angulo, *IEEE Transactions on Circuits and Systems*, vol. 39, No. 12 December
1992, pp. 883-885.

19.
"Digitally Tunable MOS Current
Mirrors for High Precision Applications", J. Ramírez-Angulo, *IEE Proceedings Part G*, vol. 140, No. 2,
April 1993.

20.
"OTA-C Biquad Filter Silicon
Compiler", M.R.Kobe, E. Sánchez-Sinencio and J. Ramírez-Angulo, *Analog Integrated Circuits and Signal
Processing*, pp. 83-98, vol. 3, No. 3, May 1993.

21.
"A Current mode Cellular Neural
Network Implementation," J. Varrientos, E. Sánchez-Sinencio and J.
Ramírez-Angulo, *IEEE Transactions on
Circuits and Systems, *vol. 40, No 3, pp. 147-155, March 1993

22.
“BiCMOS Low Distortion Tunable
Transconductor for Continuous-Time Filters", M. Ali, M. Howe, E.
Sánchez-Sinencio and J. Ramírez-Angulo, *IEEE
Transactions on Circuits and Systems*, vol. 40, No.1, pp. 43-48, January
1993

23.
"iDD pulse response testing: A
unified approach to testing analog and digital
VLSI circuits," J. Beasley, H. Ramamurthy, M. DeYong and J.
Ramírez-Angulo, *IEE Electronics Letters*,
vol. 29, No. 24, pp. 2101-2013, November 1993.

24. “Low-Voltage Building Blocks for Fuzzy Processors, J. Ramírez-Angulo, IEEE Circuits and Devices Magazine, vol. 10, No. 4, July 1994, pp. 48-50

25.
"Large f0Q Second Order Filters
Using Multiple Output OTAs", Jaime Ramírez-Angulo and E.
Sánchez-Sinencio, *IEEE Transactions on Circuits and Systems*, Vol. 41, No. 9, pp.
587-592, September 1994

26.
"High frequency compensated
current-mode ladder filters using multiple output OTAs," Jaime
Ramírez-Angulo and E. Sánchez-Sinencio,
*IEEE Transactions on Circuits and
Systems*, Vol. 41, No. 9, pp. 581-586, Sept. 1994

27.
“Wide Range Gain Programmable class AB
linear Current Mirrors for low supply operation,” , J. Ramirez-Angulo, *IEEE
Transactions on Circuits and Systems*, Vol. 41, No. 9, pp. 631-634,
September 1994

28.
"Low-Voltage OTA architectures
Using Multiple Input Floating gate Transistors," J. Ramírez-Angulo, S.C.
Choi, G. Gonzalez-Altamirano, *IEEE Transactions
on Circuits and Systems*, vol. 42, No. 12, pp.971-974, November 1995.

29.
"OTA:GS filters: the new face of
RC-active filters", J. Ramírez-Angulo and G. Gonzalez *Revista Mexicana de Fisica*, vol. 42, No. 3 pp. 459-466, July 1996.

30.
"Charge Mode Defuzzifiers using
multiple input floating-gate transistors," J, Ramírez-Angulo, V. Quintana,
S.C. Choi, D. Zrilic and A. de Luca *International
Journal of Intelligent Automation and Soft Control*, Special Issue on
Autonomous Control Engineering, vol. 3, No. 1, pp. 5-12, February 1997

31.
"Low-Voltage High-Frequency
Continuous-time Filters Based on Simple Transconductors and Miller
Integrators", J. Ramírez-Angulo, *Journal
of Analog Integrated Circuits and Signal Processing*, pp. 295-301, May 1997.

32.
"A simple technique for
low-voltage op-amp operation in continuous-time," J. Ramírez-Angulo, A
Torralba, R.G. Carvajal and J.Tombs, *IEE Electronics Letters*, vol. 35, No. 4,
February 18^{th}, 1999, pp. 263-264

33. ” A CMOS four quadrant Current/Transconductance multiplier,” A. Diaz-Sánchez, J. Ramírez-Angulo, E. Sánchez-Sinencio and Gubhee Han, Journal of Analog Integrated Circuits and Signal Processing, vol. 19, No. 2, May 1999, pp. 163-168.

34.
"Very Low-Voltage Class AB CMOS
and Bipolar Precision Current rectifiers," J. Ramírez-Angulo, R.G.
Carvajal, J. Tombs and A. Torralba, *IEE
Electronics Letters*, Vol. 35. No. 22, October 1999, pp. 1904-1905.

35.
"Hardware Implementations of
Fuzzy Membership fucntions, Operations and Inference,” Djuro G. Zrilic, Jaime
Ramírez-Angulo and B.Yuan *Computers and
Electrical Engineering*, Vol. 26, No. 1, January 2000, pp. 85-105

36.
Low-voltage CMOS amplifiers with wide
input-output swing based on a novel scheme," J. Ramírez-Angulo, A
Torralba, R.G. Carvajal and J.Tombs, *IEEE
Transactions on Circuits and Systems-I*,
vol. 47, No. 5, May 2000, pp. 772-774.

** **

37.
** **High-speed high-precision min/max
circuits in CMOS technology Carvajal, RG; Ramirez-Angulo, J; Martinez-Heredia, *:
Electronics Letters*; April 13 2000; v.36, no.8, p.697-699

38.
"Class AB
output stage for low voltage CMOS op-amps with accurate quiescent current
control," A. Torralba, R.G. Carvajal, J. Martinez-Heredia and J.
Ramirez-Angulo, *Electronics Letters*, vol. 36, No. 21, 12^{th}
October 2000, pp. 1753-1754.

39.
"Floating-Gate
based tunable CMOS low-voltage linear transconductor and its application to HF
Gm-C filter design," F. Munoz, A. Torralba, R. G. Carvajal, J. Tombs, and
J. Ramirez Angulo,* IEEE Transactions on Circuits and Systems, special issue
on applications of floating gate transistors*, vol. 48, No. 1, January 2001,
pp. 106-110

40.
"Low-voltage
CMOS Op-amp with rail-to-rail signal swing for continuous-time signal
processing using multiple-input floating-gate transistors," J.
Ramirez-Angulo, R. G. Carvajal, J. Tombs, and A. Torralba, *IEEE Transactions
on Circuits and Systems, special issue on applications of floating gate
transistors*, vol. 48, No. 1, Jan. 2001, pp. 110-116

41.
“MITE Circuits:
The Continuous time counterpart to switched capacitor circuits," Jaime Ramirez-Angulo and Antonio Lopez, *IEEE
Transactions on Circuits and Systems, special issue on applications of floating
gate transistors*, vol. 48, No. 1, January 2001, pp. 45-55

42.
“Compact low-power high slew sate CMOS buffer for large capacitive
loads,” A.Torralba, R.G.Carvajal, J. Galán, and J.Ramírez-Angulo, *Electronics
Letters* vol. 38. No. 22, Oct. 24, 2002, pp. 1348-1349.

43.
“Low-power Low-voltage differential class-AB OTA for SC circuits,” G.Carvajal, J. Galán, J.Ramírez-Angulo and
A.Torralba*, **Electronics Letters*, vol. 38, No.
22 pp. 1304-1305, Oct. 24, 2002.

44.
“Simple technique using Local CMFB to enhance Slew Rate and bandwidth of one-Stage
CMOS op-amps,” Jaime Ramirez-Angulo and Michael Holmes*. Electronics Letters*,
vol. 38, No 23, pp. 1409-1411, November 7^{th} 2002,

45.
“Output stage for
low supply voltage, high-performance CMOS mirrors,” A.Torrallba, Carvajal, F.
Muñoz and J.Ramírez-Angulo,* * *Electronics
Letters* vol. 38, No. 24, pp.
1528-1529, Nov. 21, 2002

46.
“Low Voltage
Transconductor with High Linearity and large Bandwidth,” A.Torrallba, J.M.
Martinez-Heredia, R.G. Carvajal, and
J.Ramírez-Angulo,*, Electronics Letters*
vol. 38, No. 25, pp. 1616-1617 December 5 2002

47.
“Innovative
Built-In Self-Test Schemes for On-Chip Diagnosis, Compliant with the IEEE
1149.4 Mixed-Signal Test Bus Standard,” Gladys
Omayra Ducoudray Acevedo and Jaime Ramírez-Angulo, *Journal of Electronic Testing and Applications*, vol. 19, issue 1,
February 2003, pp. 21-28

48.
“An Analog Median Filter with Fuzzy Adaptation, “ J. Lemuz-Lopez,
A, Diaz-Sanchez and J. Ramirez-Angulo, Microelectronics Reliablity; Feb. 2003; v.43, no.2,
p.203-207

49.
“A New Analogue Switch for Very Low Voltage Applications**, “ **F. Muñoz,
J.
Ramírez-AnguloLopez-Martin R.G. Carvajal A. Torralba1 B. Palomo and M. Kachare, *IEE Electronics Letters,* May 2003; v.39, no.9,
p.701-702.

50.
“A new Family of
Very Low-Voltage Analog Circuits Based on Quasi Floating Gate Transistors, J.
Ramirez-Angulo, C. Urquidi, R.G. Carvajal, A. Lopez-Martin, *IEEE Transactions on Circuits and Systems,
II* v. 50, No. 5 May 2003, pp.
214-220

** **

51.
“Low-voltage
high-gain differential OTA for SC circuits,” Carvajal, RG; Palomo, B; Torralba,
A; Munoz, F; Ramirez-Angulo, Electronics Letters; Aug 7 2003; v.39, no.16,
p.1159-1160

52.
“Class AB output stages for low voltage CMOS op-amps with accurate
quiescent current control by means of dynamic biasing,” A. Torralba, R.G. Carvajal, J.
Ramirez-Angulo, J. Tombs, F. Munoz, J.A. Galan , *Journal of Analog Integrated Circuits and Signal Processing,*
Special Issue on ICECS 2001, Jul-Aug. 2003,
Vol. 36, No. 1-2pp. 69-77.

53.
“Analog Adaptive Median Filters” Alejandro Díaz-Sánchez , Jaime Ramírez-Angulo and Javier
Lemus-Lopez, *Journal of Analog Integrated Circuits and Signal Processing*
v. 36, No. 3 Sept. 2003, pp. 207-213

54.
“Low voltage class AB
output stage for CMOS op-amps using multiple input floating gate Transistors**,
“ **Carvajal, RG; Torralba, A; Tombs, J; Munoz, F; Ramirez-Angulo, *J :
Analog Integrated Circuits and Signal Processing;* Sept. 2003; v.36, no.3,
p.245-249.

55.
“Very Low Voltage
Rail-to-Rail Programmable-Gain CMOS Amplifier”Jaime Ramírez-Angulo , Antonio J.
López-Martín , Ramón G. Carvajal , and Chad Lackey* ^{, }Journal of
Analog Integrated Circuits and Signal Processing* Dec 2003; v.37, no.3, p.269-273

56.
”Low-voltage analog circuits based on wideband capacitive
coupling, “,J. Ramirez-Angulo, J; C. Urquidi,
R.G. Carvajal, A. Torralba, ; A.J. Lopez-Martin, *Journal of Analog
Integrated Circuits and Signal Processing,*
Dec 2003; v.37, no.3, p.253-257

57.
“Low-power low-voltage class-AB linear OTA for HF filters with a
large tuning range J.A. Galan, R.G.
Carvajal, F. Munoz, A. Torralba, J.
Ramirez-Angulo, *Journal of
Analog Integrated Circuits and Signal Processing*; Dec 2003; v.37, no.3, p.275-280

58.
“Low voltage CMOS
analogue four quadrant multiplier based on flipped voltage followers,” J.
Ramirez-Angulo, S. Thoutam, R.G. Carvajal and A. Lopez. Martin *IEE
Electronics Letters*. Vol 39, No. 25, pp. 1771-1772, December 2003.^{}

59.
“Low-voltage Power-efficient Adaptive
Biasing for CMOS Amplifiers and Buffers,”
S. Baswa, A.J.
Lopez-Martin, R.G. Carvajal, J.
Ramirez-Angulo, *Electronics Letters*;
Feb. 19 2004; v.40, no.4, p.217-219.

** **

60.
“Low-voltage Micropower Super Class AB
CMOS OTA “ S. Baswa, A.J. Lopez-Martin,
J. Ramirez-Angulo, R.G. Carvajal, *Electronic
Letters*; Feb 19 2004; v.40, no.4, p.216-217.

** **

61.
“Low supply voltage high-performance
CMOS current mirror with low input and output voltage requirements,”
Ramirez-Angulo, J; Carvajal, RG; Torralba, A*, IEEE Transactions on Circuits and Systems II-Express Briefs*;
March 2004; v.51, no.3, p.124-129

62.
“A Fully Parallel CMOS Analog Median
Filter,” A. Diaz-Sanchez, J. Ramirez-Angulo,
A. Lopez-Martin, E. Sanchez-Sinencio,
*IEEE Transactions on Circuits and Systems II-Express Briefs*;
March 2004; v.51, no.3, p.116-123

63.
“Very Low-voltage Analog Signal
Processing Based on Quasi-floating Gate Transistors,” ,J. Ramirez-Angulo, A.J. Lopez-Martin; R. G. Carvajal, F.M.
Chavero, *IEEE Journal of Solid State Circuits;* March 2004; v.39, no.3,
p.434-442.

64.
“1.1V
Low-Power Delta Sigma Modulator fro 14-bit, 16KHz A/D Conversion Using a New
Low-Voltage Class AB Op-Amp”, F. Munoz, A.P. Vega Leal, R.G. Carvajal, A.
Torralba, J. Tombs and J. Ramirez-Angulo, *Journal of Analog Integrated Circuits
and Signal Processing,* May 27, 2004

** **

65.
New compact CMOS continuous-time
low-voltage analog rank-order filter architecture , J. Ramirez-Angulo, R.
Gonzalez-Carvajal, G.O. Ducoudray, A.J.
Lopez-Martin, A. Torralba, *IEEE Transactions on Circuits and Systems
II-Express Briefs*; May 2004; v.51, no.5, p.257-261

^{ }

66.
Very low voltage MOS translinear loops
based on flipped voltage followers , Lopez-Martin, AJ; Carlosena, A;
Ramirez-Angulo*, Journal of Analog Integrated Circuits and Signal Processing;
*Jul. 2004; v.40, no.1, p.71-74

** **

67.
“Biasing CMOS
amplifiers using MOS transistors in subthreshold region,” Manoj Bikumandla, Jaime Ramírez-Angulo, Carlos
Urquidi, Ramon G. Carvajal and Antonio J. Lopez-Martin*, IEICE Electronics
Express* Vol.1, No.12, pp. 339-345,
September 25, 2004 ^{}

^{ }

68.
Rail-to-rail
super class AB CMOS operational amplifiers ,”, S. Baswa, J. Ramirez-Angulo, A. J. López-Martín, R. G. Carvajal and M.
Bikumandla *Electronics
Letters** *, January 6, 2005, vol. 41, No. 1

69.
” Reconfigurable
Logic Family Based on Floating Gates,” L.F. Cisneros_Sinencio, A. Diaz-Sanchez
and J. Ramirez-Angulo,*IEICE Transactions Fundamentals Comunn. Electronics
and Systems* ; Nov 2004; v.E87C, no.11, p.1884-1888

70.
“Rail-to-Rail super
Class AB CMOS Operational Amplifiers,” S. Baswa, J. Ramirez-Angulo, A.J.
Lopez-Martin, R.G. Carvajal and M. Bikumandla, Electronics Letters, vol. 41,
No. 1, January 6, 2005, pp. 1-2

71.
” Low-Voltage Wide g_{m} Adjustment Range, Highly
Linear BiCMOS OTA,”, J. Ramírez-Angulo, Milind S. Sawant, A. J.
López-Martín, and R. G. Carvajal, *ELEX:
IEICE Electronics Express Letters,* Vo.l 2, No. 4 pp. 127-132, February 25, 2005

72.
”A Low-Power Low-Voltage OTA-C Sinuosidal Oscillator with a Large Tuning Range,” J.
Galan, R. G. Carvajal, A. Torralba, F. Muñoz, and J. Ramirez-Angulo, *IEEE Transactions on Circuits and Systems I*,
vol. 52, no. 2 Feb. 2005, pp. 283-291

** **

73.
“Novel Architectures of Class AB Current
Mirrors with Programmable gain” C. Durbha, J. Ramirez-Angulo, R.G. Carvajal and
A. Lopez-Martin, *Journal of Analog Integrated Circuits and Signal
Processing, *Vol. 42, February 2005,
pp. 197-202

** **

74.
“A Compact Tunable
Transcoductor with high linearity,” M. Kachare, A.J. Lopez-Martin, J.
Ramirez-Angulo and R.G. Carvajal, *IEEE Transactions on Circuits and Systems
II Express Briefs,* vol. 52, No. 2 February 2005, pp. 82-84

** **

75.
“A
new, true low voltage, Class-AB current mirror', A.
Torralba, R. G.Carvajal, M.Jiménez, F. Muñoz, J. Ramírez-Angulo *IEICE Electronics Express* ELEX* , * Vo. 2, No. 4, Feb. 25, 2005, pp. 103-107

76.
“Linearization of MOS resistors using
capacitive gate voltage averaging,” J. Ramirez-Angulo. M. Sawant,
R.G. Carvajal and A. López-Martín, *IEE
Electronics Letters, *vol. 41, No.
9, 28^{th} April 2005, pp. 511-512

77.
“1.1 V Low-Power Sigma Delta Modulator for 14-bit, 16 kHz A/D Conversion
suing a new low-voltage class-AB op-amp,” F. Munhoz, A.P. Vega-Leal, R.G.
Carvajal, A. Torralba, j. Tombs and J. Ramirez-Angulo, *Journal of Analog
Integrated Circuits and Signal Processing*, vol. 43, No. 1 April 2005, April
2005, pp. 31-38.

78.
“Low-Voltage Super
Class AB CMOs OTA Cells with very high Slew Rate and Power Efficiency,”Antonio
J. López-Martín , Sushmita Baswa , Jaime Ramirez-Angulo, and Ramón G. Carvajal, *IEEE Journal of Solid State Circuits*, Vol. 40, No. 5, May 2005. pp.
1068-1077.

79.
“Hi-Speed High-precision
Analog Rank Order Filter with O(n) complexity in CMOS Technology,” R** **G.
Carvajal, J. Ramirez-Angulo, G.O.Ducoudray, and A. López-Martin *IEEE Journal of Solid State Circuits,* Vol. 40, No. 6, June
2005.

80.
“ A CMOS Transconductor with Multidecade Tuning Using Balanced Current Scaling in Moderate
Inversion,” J. Ramirez-Angulo, C. Durbha, A. Lopez and R. G. Carvajal, *IEEE Journal of Solid State Circuits* ,Vol.
40, No. 5, May 2005, pp. 1078-1083

81.
“Low Voltage High Performance Voltage Mode and
Current mode WTA Circuits Based On
Flipped Voltage Follower,” J. Ramírez-Angulo, G. Ducoudray-Acevedo, R. G. Carvajal and A. López-Martín,
*IEEE Transactions on Circuits and Systems II,* vol. 52, No. 7,
July 2005, pp. 420-423.

82.
“The Flipped Voltage Follower: A useful cell for low-voltage
low-power circuit design, “.R.G.
Carvajal, J. Ramírez-Angulo, A. López-Martin, A. Torralba, J. Galán, A.
Carlosena and F.Muñoz,
*IEEE Transactions on Circuits and Systems II *vol. 52, No. 7,
2005, July 2005, pp. 1276-1291.

83.
“1.5-V Current-Mode CMOS True RMS-DC
Converter Based on Class-AB Transconductors *,” *C. A. De La Cruz-Blas, A.
López-Martín, A.Carlosena, and J. Ramírez-Angulo, *IEEE Transactions and
Circuits and Systems II* vol. 52, No. 7, July 2005, pp. 376-379.

84.
*“*Compact Implementation of High Performance CMOS Current
mirror” J. Ramirez-Angulo, M.S. Sawant, A. López-Martin
and R.G. Carvajal*, Electronics Letters*, vol. 41, No. 10, May 12, 2005, pp. 570-572.

85.
“New Low-Voltage Fully Programmable CMOS
Triangular/Trapezoidal Function Generator Circuit, “ M. Kachare, J.
Ramirez-Angulo, R.G. Cravajal and A. Lopez-Martin, *IEEE Transactions on
Circuits and Systems I,* vol. 52, No. 10, October 2005, pp. 1-11

** **

** **

** **

**In print and
Accepted for publication **

86.
**“**Application of local
CMFB techniques to ** **enhance Slew Rate and bandwidth of
one-Stage CMOS operational-amplifiers**,” ** Michael Holmes and Jaime Ramirez-Angulo, *IEEE
Journal of Solid State Circuits* (accepted for publication)

87.
“A New
Low-Voltage CMOS Unity-Gain Buffer,” Antonio Torralba, Ramón G. Carvajal, Mariano Jiménez, Fernando Muñoz, and Jaime Ramírez-Angulo, *IEEE Transactions
on Circuits and Systems II (in print*)

88.
“A High-Speed
Dynamic Current Sensor for iDD Test Based on the Flipped Voltage Follower,” Gladys Omayra Ducoudray,” Ramon Gonzalez-Carvajal^{ , }Jaime
Ramírez-Angulo*, Journal
of Electronic Testing and Applications* (accepted
for publication)

89.
“Highly linear Wide Input Range CMOS
OTA Architectures Operating in Subthreshold and Strong Inversion J. Ramirez-Angulo, C. Durbha, G.O.
Ducoudray-Acevedo , RG. Carvajal and Antonio J.
Lopez-Martin, special issue on "VLSI Design and Test”, Microelectronic
Engineering Journal's (in print).

90.
“A Low Power High Frequency CMOS Continuous-time Filter With A large
Tuning Range,” J. Galan, Ramón G. Carvajal, A. Torralba, Fernando Muñoz, and J.
Ramirez-Angulo, *IEE Proceedings Part G*
(in print)

** **

91.
A Compact
approach for CMOS waveform Generation and Analog Function Synthesis.,” R.L. Romero, J. Ramirez-Angulo, A. Lopez-Martin and R.G. Carvajal, *IEEE Transactions on Circuits and
Systems* I (accepted with major revisions).

92.
“New Low-Voltage Class AB/AB CMOS Op-Amp with
Rail-to-Rail Input/Output Swing, J. Ramírez-Angulo,
Milind S. Sawant, S. Thoutam A. J. López-Martín and R. G. Carvajal, *IEEE Transactions on Circuits and Systems II (in print)*

** **

93.
“The Universal Op-Amp and Applications in Continuous-time Linear
weighted Voltage addition,” J. Ramirez-Angulo and F, Ledesma, *IEEE
Transactions on Circuits and Systems II* (in print)

** **

94.
“Micropower
CMOS S&H circuit for Ambient Intelligence applications,” A. J. López-Martín, C.A. De La
Cruz, X. Ugalde, R. G. Carvajal and J. Ramirez-Angulo,* Electronics Letters
(in print)*

95.
*“*High Performance Current Mirror and its Applications in
Low-voltage Rail-to-rail Voltage to Current Conversion,” Rahul Shukla, Jaime Ramírez-Angulo, Antonio J. López-Martín, and Ramon G. Carvajal, IEEE Transactions on
Circuits and Systems II (in print)

96.
“Novel Very Low Voltage CMOS D/A Conversion Technique Based on
Quasi-floating gate Transistors “,Antonio J. López-Martín , Jaime Ramírez-Angulo
, Ramón González-Carvajal and Chad Lackey* IEEE Transactions on
Circuits and Systems I* (under review)

97.
"A Master-Slave scheme to Tune
Gain of Transconductance Amplifiers with high Accuracy,” J. Ramirez-Angulo, *IEEE
Transactions on Instrumentation and Measurement*
(under Review)

98.
“High Speed compact CMOS Circuits for Continuous time weighted
voltage addition,*’ *J. Ramirez-Angulo and F. Ledesma, *Int. Journal of
Circuit Theory and Applications*, (under review)

99.
"Implementation of Trapezoidal Circuits with
Fully independent Programmable Characteristics using Operational
Transconductance Amplifiers,” J. Ramírez-Angulo, J. Zrilic and P. Saavedra, *IEEE Transactions on Instrumentation and measurement* (under review)

100.
”CMOS Current Conveyor with High
Accuracy,” *Electronics Letters* A.J. Lopez-Martin, J. Ramirez-Angulo
(under review)

101.
“Low-voltage High
Performance Compact All Cascode CMOS Current mirror,” A. Garimella, L.
Garimella, J. Ramirez-Angulo, A. J. López-Martin and R.G. Carvajal, *Electronics Letters* (under review)

102.
“ A Restrained Neighborhood Analog
Median Filter For Image
Processing Applications, » Alejandro Díaz-Sánchez, Javier Lemus-Lopez,* International Journalof Analog Integrated
Cirucits and Signal Processing *(under review)

103.
“A free but efficient low-voltage
class AB two stage operational amplifier,”
Jaime Ramírez-Angulo, * *Ramón
G. Carvajal, * J. *Galán, * *and Antonio López-Martín, *IEEE Transactions on Circuits and Systems II*
(under review)

104.
“Super
Class AB OTAs with Adaptive Biasing and
dynamic output Current J.,”J.
Galan, Jaime Ramirez-Angulo, , and Ramón G. Carvajal, Antonio J.
López-Martín, *IEEE Journal of Solid State
Circuits (*under review)

105.
“A ±1.5-V 3-mW CMOS Transconductor
with** **75-dB SFDR for 6-V_{pp}
Input Swings,” Antonio J. López-Martín , Jaime Ramirez-Angulo*, *and Ramón G. Carvajal, *IEEE Journal of Solid State Circuits (under review)*

* *

1.
"Frequency and Impedance Transformations", J.
Ramírez-Angulo section 13.67, pp. 2192-2204 * CRC Handbook on Circuits and Filters*,
1995.

2. "Low Voltage Analog BiCMOS Circuit Building Blocks" IEEE Press book on Low Voltage Low Power Integrated Circuits and Systems. IEEE Press, New York, 1999, pp. 207-242.

3. Section: "Bandpass-Filter," Encyclopedia of Electrical and Electronics Engineering, John Wiley & Sons (1999).

4.
Proceedings of the 42^{nd}
Midwest Symposium on Circuits and Systems

1.
"Implementation of Surface
Acoustic Wave Filters for Application in Specific Communication and Electronic
Problems (in spanish)", J. Ramírez‑Angulo and A. Serrano. *IEEE MEXICON 76*. Mexico City, July 7‑10,
pp. II35‑II41, 1976.

2.
“Acoustic Surface Wave Filters (in
spanish)", J. Ramírez‑Angulo and
A.Serrano *XVIII Congress of the Mexican Physics Society*, Veracruz, Mexico
December 8‑11, pp. 21, 1975.

3.
"Design of a Traffic Measurement
System for Automatic Networks (in spanish)", J. Ramírez‑Angulo and
V. Aviles‑Garcia, *Second Congress
of the Mechanical and Electrical Engineers Society*, Mexico City, November
11‑12, session D, 1976.

4.
“Exploration of the Acceptability
Region: A New Low Cost Design Centering Procedure", J. Ramírez‑Angulo,
*IEEE‑MEXICON 82*, Mexico City,
October 1982.

5.
"Design of SAW Filters with
Arbitrary Magnitude and Phase Response Specifications (in spanish)", J.
Ramírez‑Angulo,* XXV Congress of the
Mexican Physics Society*, Jalapa, Mexico, November 22‑26, pp. 13,
1982.

6.
"Efficient Non‑Deterministic
Design Centering Based on the Concept of Dominant Constraints", J. Ramírez‑Angulo
and E. Luder, *IEEE International
Symposium on Circuits and Systems*, Newport Beach, CA., May 2‑4, pp.
546‑549, 1983.

7.
"Circuit Yield Improvement by One
Dimensional Exploration of the Acceptability Region", J. Ramírez‑Angulo,
*26th Midwest Symposium on Circuits and
Systems*, Puebla, Mexico, August 15‑16, pp. 477‑480, 1983.

8.
"Fabrication in Mexico of thin
Film Hybrid Microcircuits (in spanish)", J. Ramírez‑Angulo, A.Ortiz
and J. Fragoso, *IEEE‑MEXICON 83*,
Cuernavaca, Mexico, November 1982.

9.
“Fabrication of Thin Film Resistors
and Capacitors (in spanish)", J. Ramírez‑Angulo and A. Ortiz, *XXVI Congress of the Mexican Physics Society*,
Puebla, Mexico, November 1983.

10.
"Component Quantization Effects
on Continuous Time Filters", J. Ramírez‑Angulo, R. L. Geiger and E.
Sánchez‑Sinencio, *IEEE
International Symposium for Circuits and Systems*, Kyoto, Japan, June 5‑7,
pp. 1423‑1426, 1985.

11.
"FIRE: A Computer Program to
predict the Peformance of Laser Trimmed Film Resistors", J. Ramírez‑Angulo, R. L. Geiger and E.
Sánchez‑Sinencio, *36th Electronics
Components Conference*, Seattle Washington, May 5‑7, pp. 405‑411,
1986.

12.
"A Circuit Theoretical Approach to
the Sensitivity Analysis of Laser Trimmed Film Resistors", J. Ramírez‑Angulo, R. L. Geiger and E.
Sánchez‑Sinencio, *1986 IEEE Int.
Symposium on Circuits and Systems*, San Jose, CA, May 5‑7, pp.1201‑1206,
1986.

13.
"A Computer‑Aided Design Program for Reduction of Total
Capacitance in Cascade SC‑Filters", E. Sánchez‑Sinencio,
J.Ramírez‑Angulo and R. L. Geiger, *29th
Midwest Symposium on Circuits and Systems*, Lincoln, NE, August 10‑12,
pp. 597‑599, 1986.

14.
"A Computer‑Aided Circuit
Design Algorithm Based on a Random Direction and Radial Search", J.
Ramírez Angulo and E. Sánchez‑Sinencio, *29th Midwest Symposium on Circuits and Systems*, Lincoln, NE, August
10‑12, pp.897‑901, 1986.

15.
"A Systematic Approach for the
Characterization of RC‑distributed Elements", J. Ramírez‑Angulo,
E. Sánchez‑Sinencio and R. L. Geiger, *IEEE‑MEXICON
86*, Guadalajara, Mexico, November 8‑10, pp. 1701‑1704, 1986.

16.
"Design of Active Filters for
Maximum GB‑variations", J. Ramírez‑Angulo, *30th Midwest symposium on Circuits and
Systems*, Syracuse, New York, August 17‑18, pp. 781‑784, 1987.

17.
"Computer‑Aided Design and
Evaluation of New Film Resistor Structures based on a Network Sensitivity
Measure", J. Ramírez‑Angulo and R. L. Geiger, *IEEE Israel Symposium on Circuits, Systems and Control*, Herzliya,
Israel, May 30‑June 1, pp. 6.31‑ 6.34, 1988.

18.
"Bandpass OTA‑C Filter
Structures, Tunability Considerations and Quantization Effects", J.
Ramírez‑Angulo and E. Sánchez‑Sinencio, *IEEE 2nd Israel Symposium on Circuits*, Systems and Control,
Herzliya, Israel, May 30‑June 1 pp. 7.21‑7.24, 1988.

19.
"A Method to Relax the Design of
Active Filters Against Large GB‑variations", J. Ramírez‑Angulo,
*1988 IEEE International Symposium on
Circuits and Systems*, Espoo, Finland, pp. 2415‑2418, June 6‑9,
1988.

20.
"Comparison of Biquadratic OTA‑C
Filters from the Tuning Point of View", J. Ramírez Angulo and E. Sánchez‑Sinencio,
*31th Midwest Symposium on Circuits and
Systems*, St. Louis, Mi, August 10‑12, pp. 510‑514, 1988.

21.
"A Program for the Design of
Filters with Specifications for Magnitude and Group‑Delay Response",
M. Kobe, J. Ramírez‑Angulo and E. Sánchez‑Sinencio, *1988 IEEE‑Region 9 Conference*,
Mexico City, October 11‑14, 1988.

22.
"OTA‑Based Nonlinear
Function Approximation", E.Sánchez Sinencio, J. Ramírez‑Angulo and
B. Linares‑Barranco, *1989 IEEE
International Symposium on Circuits and Systems*, Portland, Ore, pp. 2415‑2418,
May 8‑11, pp. 96‑99.

23.
"Active Compensation of
Operational Transconductance Amplifier Filters Using Partial Positive
Feedback", J. Ramírez‑Angulo, and
E. Sánchez‑Sinencio, *Midwest
Symposium on Circuits and Systems*, Champaign, Ill., pp. 1206‑1210,
August 15‑16, 1989.

24.
"Programmable Piecewise‑Linear
Function Synthesizers Using Operational Transconductance Amplifiers", J.
Ramírez‑Angulo, B. Linares‑Barranco, E. Sánchez‑Sinencio and
A. Rodriguez‑Vazquez, *1989 European
Conference on Circuit Theory and Design*, Brighton, UK, pp. 452‑456, 5‑8
September 1989.

25.
"All MOS‑Transistors
Continuous‑Time Filters in CMOS‑Technology", B. Linares‑Barranco,
E. Seaberg and J. Ramírez‑Angulo, *IEEE‑Mexicon
89*, Mexico, Sept. 17‑22 1989.

26.
"Distributed RC‑Filters
With Linearized MOS‑Transistors in MOS‑Technology'', B. Linares‑Barranco,
E. Seaberg and J. Ramírez‑Angulo, *IEEE‑1990
International Symposium on Circuits and Systems*, New Orleans, Lousiana, pp.
May 1‑3 1990, pp. 2385‑2388.

27.
"A Precision Broadband Voltage
Rectifier in CMOS Technology", J. Ramírez‑Angulo, *IEEE‑1990
International Symposium on Circuits and Systems*, New Orleans, Lousiana, May
1‑3 1990, pp. 1724‑1727.

28.
"Maximum Value of the Base
Resistance of Vertical Bipolar Transistors", B. Linares‑Barranco, E.
Seaberg and J. Ramírez‑Angulo, *IEEE‑1990
International Symposium on Circuits and Systems*, New Orleans, Lousiana, May
1‑3 1990, pp. 3182‑3185.

29.
“Analog Neural Networks for Real‑Time
Constrained Optimization", A. Rodriguez‑Vazquez, R. Dominguez‑Castro,
J.L.Huertas, E.Sánchez‑Sinencio, B.Linares‑Barranco and J. Ramírez‑Angulo,
*IEEE‑1990 International Symposium
on Circuits and Systems*, New Orleans, Lousiana, May 1‑3 1990, pp.
1867‑1870.

30.
“FIESTAII: A PC‑ Filter
Educational Synthesis Teaching Aid", J.Ramírez‑Angulo, M. Kobe and
E.Sánchez‑Sinencio, *33rd‑
Midwest Symposium on Circuits and Systems*, Calgary, Canada, August 12‑14
1990, pp. 504-507.

31.
“A Current Mode CMOS‑Cellular
Neural Network", J. Varrientos, J. Ramírez‑Angulo and E. Sánchez‑Sinencio,* 33rd‑ Midwest Symposium on Circuits
and Systems*, Calgary, Canada, August 12‑14 1990, pp. 277-280.

32.
“A Program for the Design of
Continuous Time Filters", J. Ramírez-Angulo, M.R. Kobe, E.
Sánchez-Sinencio, *1990 IEEE Region 9
Conference*, Monterrey Mexico, Oct 1-4, 1990, vol. I, pp. 1-4.

33.
“Cellular Neural Networks
Implementation: A Current Mode Approach", J.E.Varrientos, J.Ramírez-Angulo
and E.Sánchez-Sinencio, *Proceedings of
IEEE International Workshop on Cellular Neural Networks and their Applications*,
Budapest Hungary December 16-19, 1990, pp. 216-220.

34.
“Current Mode Continuous-Time Filters:
Two Design Approaches", M. E. Robinson, J. Ramírez-Angulo and E.
Sánchez-Sinencio, *34th Midwest Symposium
on Circuits and Systems*, Monterey, California, May 14-17, 1991.

35.
“OTA Extended Adjustment Range and
Linearization Via Programmable Current
Mirrors", W. J. Adams and J. Ramírez-Angulo, *34th Midwest Symposium on Circuits and Systems*, Monterey,
California, May 14-17, 1991.

36.
“High Selectivity, High Frequency
Continuous-Time Filters Using Multiple Output OTAs", Jaime Ramírez-Angulo,
E. Sánchez-Sinencio and Matthew Howe, *1991
IEEE International Symposium on Circuits and Systems*, pp. 1351-1354
Singapore, June 11-14, 1991.

37.
“Improvement of Laser Trimmed Film
Resistor Stability by Selection of Optimal Trim Paths", J. Ramírez-Angulo,
R. Wang and Randall L. Geiger, *1991 IEEE
International Symposium on Circuits and Systems*, pp. 2188-2191, Singapore,
June 11-14 1991.

38.
“OTA Extended gm Adjustment Range Via
Electronically Programmable Current Mirrors", W. J. Adams and J.
Ramírez-Angulo, *1991 IEEE International
Symposium on Circuits and Systems*, pp. 2553-2556, Singapore, June 11-14
1991.

39.
“Circuit implementations of Extended
Transconductance Linearization Technique", W.J. Adams and J.
Ramírez-Angulo, *1991 European Conference
on Circuit Theory and Design*, September 2-6, 1991, Copenhagen, Denmark.

40.
“Wide gm Adjustment Range, Highly
Linear OTA with Linear Programmable Current Mirrors," J. Ramírez-Angulo
and I. Grau, *Proceedings of 1992 IEEE International Conference on Circuits and
Systems*, pp. 1372-1375, San Diego CA, May 10-13 1992.

41.
"Applications of Composite BICMOS
Transistors in Analog Circuits," J. Ramírez-Angulo, M. Deyong and W. J.
Adams, *Proceedings of 1992 IEEE
International Conference on Circuits and Systems*, pp. 1262-1266, San Diego
CA, May 10-13 1992.

42.
“Architectures for Analog VLSI
implementation of Neural Networks for Solving Linear Equations with Inequality
Constraints," A. Cichocki, J. Ramírez-Angulo and R. Unbehauen, *Proceedings of 1992 IEEE International
Conference on Circuits and Systems*, pp. 1529-1532, San Diego CA, May 10-13
1992.

43.
"A Piecewise Linear Function
Approximation using Current Mode Circuits," J. Ramírez-Angulo, E.
Sánchez-Sinencio and A. Rodriguez-Vazquez, *Proceedings
of 1992 IEEE International Conference on Circuits and Systems*, pp.
2021-2024, San Diego CA, May 10-13 1992.

44.
"The folded Gibert Cell: A
low-voltage, high performance CMOS multiplier", J. Ramírez-Angulo and Sun
Ming-Chen, *Proceedings of* *35th Midwest Symposium on Circuits and
Systems*, pp. 20-23, August 9-12, 1992 Washington, D.C.

45.
"Modules for a digitally
controlled analog signal processor with highly reconfigurable
architecture", J. Ramírez-Angulo, R. Paz and R. Parra, *Proceedings of 35th Midwest Symposium on
Circuits and Systems*, pp. 458-461, August 9-12, 1992 Washington, D.C.

46.
"A hybrid OTA with very wide
adjustement range", M. DeYong and J. Ramírez-Angulo, *Proceedings of 35th Midwest Symposium on Circuits and Systems*,pp.
953-956, August 9-12, 1992 Washington, D.C.

47.
"CMOS cells for analog VLSI
Laplace equation solver based on the resistive analogy method", J.
Ramírez-Angulo, M. DeYong and Sun Ming-Chen, *Proceedings of 35th Midwest Symposium on Circuits and Systems*, pp.
597-600, August 9-12, 1992 Washington, D.C.

48.
"A BiCMOS Low Distortion Tunable
Transconductor for Continuous-Time Filters", M. Ali, M. Howe, E.
Sánchez-Sinecio and J. Ramírez-Angulo *Proceedings
of 35th Midwest Symposium on Circuits and Systems*, pp. 571-574, August
9-12, 1992 Washington, D.C.

49.
"A BiCMOS current
buffer-rectifier", M. Ali, M. Howe, E. Sánchez-Sinencio and J.
Ramírez-Angulo *Proceedings of 35th
Midwest Symposium on Circuits and Systems*, August 9-12, 1992 Washington,
D.C.

50.
"A second generation Linear
low-voltage BiCMOS OTA," J. Ramírez-Angulo and K. H. Treece, *Proceedings of the 1993 IEEE International
Conference on Circuits and Systems*, pp. 1172-1175, May 5-7 1993, Chicago
Il.

51.
"High frequency compensated
Current-mode ladder filters using multiple output OTAs," J. Ramírez-Angulo
and E. Sánchez-Sinencio, *Proceedings of
the 1993 IEEE International Conference on Circuits and Systems*, pp.
1412-1415, May 5-7 1993, Chicago Il.

52.
"Low voltage programmable analog
FIR Filters using voltage followers and multipliers," J. Ramírez-Angulo
and A. Diaz-Sánchez, *Proceedings of the
1993 IEEE International Conference on Circuits and Systems*, pp. 1408-1411,
May 5-7 1993, Chicago Il.

53.
"Linearity accuracy and bandwidth
Considerations in wideband CMOS voltage amplifiers," J. Ramírez-Angulo, R.
Sadkowski and E. Sánchez-Sinencio, *Proceedings
of the 1993 IEEE International Conference on Circuits and Systems*, pp.
1251-1254, May 5-7 1993, Chicago, Il.

54.
"Novel Digitally trimmable MOS
current mirrors," J. Ramírez-Angulo, *Proceedings
of the 1993 IEEE International Conference on Circuits and Systems*, pp.
974-977, May 5-7 1993, Chicago Il.

55.
"A master-slave scheme for tuning
the gain of transconductance amplifiers with high absolute accuracy," J.
Ramírez-Angulo, *Proceedings of the 1993
IEEE International Conference on Circuits and Systems*, pp. 1176-1179,
Chicago, Il, May 5-7 1993.

56.
"Highly Linear Four Quadrant
analogue BiCMOS multiplier for +-1.5V", J. Ramírez-Angulo, *Proceedings of IEEE 1993 International
Symposium on Circuits and Systems*, pp. 1467-1470, Chicago, Il, May 5-7
1993.

57.
"IDD spectrum and temporal
analysis test techniques for VLSI circuits," J. Beasley, H. Ramamurthi, M.
DeYong and J. Ramírez-Angulo, *Proceedings
of the 1993 European Conference on Circuit Theory and Design*, pp. 659-664,
Davos, Switzerland, August 30 - September 3, 1993.

58.
"BiCMOS High Frequency Linear
Bandpass-Based Current mode Oscillator for 3V supply Oscillator", J.
Ramírez-Angulo and E. Sánchez-Sinencio, *Proceedings
of the 1993 European Conference on Circuit Theory and Design* (ECCTD'93),
pp. 1119-1132, Davos, Switzerland, August 30 - September 3, 1993.

59.
"iDD Pulse Response Testing of
Analog and Digital Circuits," J. S. Beasley, H. Ramamurthy, J.
Ramírez-Angulo and M. Deyong, *1993
International Test Conference*, pp. 626-634, October 17-21, Baltimore Ma, 1993.

60.
"Use of MOSIS custom designed
CMOS and BiCMOS transistor Arrays for teaching VLSI courses", J.
Ramírez-Angulo and J. Beasley, *Proceedings
of 36th Midwest Symposium on Circuits and Systems*, Detroit Mi, August
16-18, pp. 1176-1179, 1993.

61.
"Design and implementation of a
digital control for a continuous-time nonrecursive (FIR) filter," A.
Martinez, L. Ortiz, A. de Luca, H. Perez and J. Ramírez-Angulo, Proceedings of *36th Midwest Symposium on Circuits and
Systems*, pp. 280-283, Detroit Mi, August 16-18, 1993.

62.
"Continuous Time High Frequency
Programmable Nonrecursive Filters," J. Ramírez-Angulo, A. de Luca, and H.
Perez-Meana, *Proceedings of 36th Midwest
Symposium on Circuits and Systems*, Detroit Mi, August 16-18, pp. 153-156,
1993.

63.
"A Parallel Form Decision
Feedback Equalizer," H. Perez-Meana, A. de Luca and J. Ramírez-Angulo, *Proceedings of 36th Midwest Symposium on
Circuits and Systems*, Detroit Mi, August 16-18, pp. 1215-1218, 1993.

64.
"Low Voltage BiCMOS Membership
Function Circuit Building Block for Analog VLSI Fuzzy Control
Implementation," J. Ramírez-Angulo, S. Badruzzamman and J. Coronado, *Proceedings of IFIS-93: Industrial Fuzzy
Control and Intelligent Systems*, pp. 42-46, December 1-3, 1993, Houston,
TX.

65.
"Two approaches for VLSI
current-mode filters based on canonical control structures," J.
Ramírez-Angulo and E. Sánchez-Sinencio, *IEEE
International Symposium on Circuits and Systems*, pp. 669-672, London,
England, May 30- June 2, 1994

66.
"Analog VLSI implementations of
adaptive membership function for fuzzy controllers," J. Ramírez-Angulo, *IEEE International Symposium on Circuits and
Systems*, London, England, May 30-
June 2, 1994

67.
"Low Voltage, High Slew Rate
Bipolar and BiCMOS op-amp architectures with rail to rail common mode input and
output swing capabilities," J. Ramírez-Angulo, *1994 IEEE International Symposium on Circuits and Systems*, pp.
743-746, London, England, May 30- June
2, 1994

68.
"Real Time Solution of Laplace
equation Using Analog VLSI circuits," J. Ramírez-Angulo, K. Treece and M.
DeYong, *1994 IEEE International Symposium
on Circuits and Systems*, pp. 95-98, London, England, May 30- June 2, 1994

69.
"Current mirrors with low input
voltage requirements for built in current sensors," J. Ramírez-Angulo, *1994 IEEE International Symposium on
Circuits and Systems*, pp. 529-532, London, England, May 30- June 2, 1994

70.
"Novel linear gain programmable
Class AB current mirrors with constant bandwidth", J. Ramírez-Angulo, *1994 IEEE International Symposium on Circuits
and Systems*, pp. 545- 548, London, England, May 30- June 2, 1994

71.
"A Programmable 1.8-18MHz, High Q
Fully Differential Continuous Time Filter with 1.5V-2V Power supply," J.T.
Nabitch, E. Sánchez-Sinencio and J. Ramírez-Angulo, *1994 IEEE International Symposium on Circuits and Systems*, pp. 653-
657, London, England, May 30- June 2,
1994

72.
"Current mirrors with low input
voltage requirements for built in current sensors," J. Ramírez-Angulo, *37th Midwest symposium on Circuits and
Systems*, pp. 107-110, Lafayette, LA, August 3-5, 1994

73.
"Low Voltage BiCMOS Comparator
for Charge Threshold Detection," J. Ramírez-Angulo, G. Gonzalez-Altamirano
and A. de Luca, *37th Midwest symposium on
Circuits and Systems*, pp. 1137-1140, Lafayette, LA, August 3-5, 1994

74.
"Low Voltage Current Mode and
Voltage Mode Min and Max Circuit Building Blocks for Analog CMOS Fuzzy
Processors," *3rd International
Conference on Fuzzy logic and Computing*, Lizuka, Japan, August 1-3, 1994.

75.
"Analog Propose of Adaptive
Filter Using All Pass Functions and LMS Approach," A. Martinez-Gonzalez, L. Ortiz-Balbuena, H.
Perez-Meana, L. Nino de Rivera and J. Ramírez-Angulo, Proceedings of *International
Symposium on Information Theory and Applications*, Sydney Australia, 20-24
November 1994, pp. 1351-1355.

76.
"Design of VLSI Systems at New
Mexico State University," J. Ramírez-Angulo, *SACNAS Conference*, January
5-9 1995, El Paso, TX.

77.
"A BiCMOS Universal Membership
Function Circuit," J. Ramírez-Angulo, 1995 *IEEE International Symposium on
Circuits and Systems*, Seattle, WA, April 30, May 3, 1994, pp.275-278

78.
"Current-Mode and Voltage Mode
VLSI Fuzzy Processor Architectures," J. Ramírez-Angulo, K. Treece, P.
Andrews and T.Choi, 1995 *IEEE International Symposium on Circuits and
Systems*, Seattle, WA, April 30, May 3, 1994, pp.1156-1159.

79.
"Yet another low voltage four
quadrant CMOS multiplier," J. Ramírez-Angulo, *38th Midwest Symposium on Circuits and Systems,* pp. 405-408, Rio de
Janeiro , Brazil, August 13-16, 1995.

80.
"OTA-GS filters: The new Face of
RC active filters," J. Ramírez-Angulo,and G. Gonzalez-Altamirano, *38th Midwest Symposium on Circuits and
Systems,* pp. 1329-1332, Rio de Janeiro , Brazil, August 13-16, 1995.

81.
"Low Supply Voltage OTA
architectures Using Floating Gate Transistors, S.C. Choi, and J.
Ramírez-Angulo, *38th Midwest Symposium on
Circuits and Systems,* pp. 158-161, Rio de Janeiro , Brazil, August 13-16,
1995.

82.
"Building Blocks of Filter Tuning
System Using Analog VLSI Fuzzy Logic Controller," S.C. Choi, E.
Sánchez-Sinencio and J. Ramírez-Angulo, *38th
Midwest Symposium on Circuits and Systems,* pp. 389-392, Rio de Janeiro ,
Brazil, August 13-16, 1995.

83.
"Analog VLSI Implementation of a
New Algorithm for Solving Generalized Systems of Linear Equations," N.C.
Carneiro, L. Caloba and J. Ramírez-Angulo, *38th
Midwest Symposium on Circuits and Systems,* pp. 965-968, Rio de Janeiro ,
Brazil, August 13-16, 1995.

84.
"A new Algorithm for Analog
Matrix Inversion," N.C. Carneiro, L. Caloba and J. Ramírez-Angulo, *38th Midwest Symposium on Circuits and
Systems,* pp. 401-404, Rio de Janeiro , Brazil, August 13-16, 1995.

85.
"An idd Transient Analysis
Technique for Defect Detection in Digital Integrated Circuits," J.
Beasley, J. Ramírez-Angulo and R. Steiner, *38th
Midwest Symposium on Circuits and Systems,* pp. 286-289, Rio de Janeiro
Brazil, August 13-16, 1995.

86.
"Comparative study of
publications of Mexico listed in Science Citation Index,"(in spanish), J.
Ramírez-Angulo, *VI Annual Meeting of the
Researchers of the state of Chihuahua*, Chihuahua City, Mexico, December 1-3
,1995

87.
"Continuous Time Adaptive Filter
Structure," L. Ortiz-Balbuena, A. Martinez-Gonzalez, H. Perez-Meana, L.
Nino de Rivera and J. Ramírez-Angulo, *IEEE
ICASP International Conference on Acoustics, Speech and Signal Processing*,
pp. 1061-1064, Detroit, Mi. May
1995.

88.
"Sistemas
Analogicos VLSI," *J. Ramírez-Angulo*,
Electro 85, (Plenary Talk), 23-27 Octubre 1995

89.
"Implementation of VLSI analog
adaptive filters," *A. Diaz-Sánchez and
J. Ramírez-Angulo*, Proceedings of IEEE Conielecomp, Puebla, Mexico,
February 28-March 1, 1996

90.
"High Speed IDDQ Current Sensors
for VLSI System Testing," *J.
Ramírez-Angulo and G. González-Altamirano*, 1996 IEEE International
Symposium on Circuits and Systems, Atlanta, Georgia, May 8-12, 1996, pp.
I-389-392.

91.
"Low Voltage continuous time
filters with OTAs and gain stages," *J.
Ramírez-Angulo and G. González-Altamirano*, 1996 IEEE International
Symposium on Circuits and Systems, Atlanta, Georgia, May 8-12, 1996, pp. II
493-496

92.
"A +-0.75V BiCMOS multiplier with
rail-rail input signal swing", *J.
Ramírez-Angulo*, 1996 IEEE International Symposium on Circuits and Systems,
Atlanta, Georgia, May 8-12, 1996, pp. 242-245.

93.
"Analog VLSI Fuzzy Processor
Architectures Based on Multiple-input Floating Gate Transistors," *J. Ramírez-Angulo, V. Quintana, S.C.Choi*,
Proc. of 1996 World Automation Congress, Montpellier, France, May 27-30, 1996,
pp. 539-544.

94.
“Design and implementation of VLSI
Voltage Mode Adaptive filters," *A.
Diaz-Sánchez and J. Ramírez-Angulo,* 1996, Midwest Symposium on Circuits and
Systems,Ames Iowa, August 11-13, 1996

95.
"A novel Slew-Rate Enhancement
Technique for One Stage Operational Amplifiers," *J. Ramírez-Angulo*, Midwest Symposium on Circuits and Systems, Ames
Iowa, Aug. 11-13 1996

96.
“High Speed Digital VLSI
Fuzzifier," *J. Ramírez-Angulo, J.
Zrilic, A. Beltran*, Midwest
Symposium on Circuits and Systems, August 11-13, Ames Iowa, 1996

97.
"A Compact High Frequency Differential
Analog Adder," *A. Diaz-Sánchez and
J. Ramírez-Angulo,* Midwest Symposium on Circuits and Systems, Ames Iowa,
August 11-13 1996

98. "Ultracompact Low-voltage Analog CMOS Multiplier Using Multiple Input Floating Gate Transistors, J. Ramírez-Angulo, 1996 European Solid State Circuits Conference, pp. 99-103.

99.
"Fast Sample Data Wavelet
Transform CMOS VLSI implementation," *G.
Gonzalez-Altamirano, A. Diaz-Sánchez and J. Ramírez-Angulo*, Midwest
Symposium on Circuits and Systems, Ames Iowa, August 11-13 1996

100.
"A new Universal Analog Fuzzifier
Based on Operational Transconductance Multiplier," P. Saavedra, J.
Ramírez-Angulo and J. Zrilic, *NASA URC
Technical Conference on Education Space, Autonomy, Earth and Environment*,
Feb. 16-19, 1997

101.
"Various Hardware Implementations
of Membership function generators," P. Saavedra, D.G. Zrilic, J.
Ramírez-Angulo and B. Yuan, *NASA URC
Technical Conference on Education Space, Autonmy, Earth and Environment*,
Feb. 16-19, 1997, pp. 849-855

102.
"Hardware Implementation of
Memebership Function Look-up table Approach," T. Peterson, D. Zrilic and
J. Ramírez-Angulo, B. Yuan *NASA URC
Technical Conference on Education Space, Autonmy, Earth and Environment*,
Feb. 16-19, 1997, pp. 579-580

103.
"Piecewise linear membership
function generator- Divider Approach," R. Hart, G. Martinez, B. Yuan, D.
Zrilic and J. Ramírez-Angulo, *NASA URC
Technical Conference on Education Space, Autonmy, Earth and Environment*,
Feb. 16-19, 1997, pp. 325-330

104.
"Modeling Multiple-Input Floating
Gate Transistors for Analog Signal Processing," J. Ramírez-Angulo, G.
Gonzalez-Altamirano and S.C. Choi, *IEEE
International Symposium on Circuits and Systems*, Hong Kong, June 9-12 1997.

105.
"A Novel Sample-Data Adaptive
Filter," A. Diaz-Sánchez and J. Ramírez-Angulo, *IEEE International Symposium on Circuits and Systems*, Hong Kong,
June 9-12 1997.

106.
"A Current-Mode Continuous Time
Adaptive Filter," A. Diaz-Sánchez and J. Ramírez-Angulo, *40th Midwest Symposium on Circuits and
Systems*, Santa Barbara, CA, August 3-6, 1997.

107.
"New Analog
Current-mode/Voltage-Mode Fuzzifier with Continuously Adjustable
Parameters," J. Ramírez-Angulo, Jorge Zrlici, Patricias Saavedra and
Antonio Lopez,* 40th Midwest Symposium on
Circuits and Systems*, Santa Barbara, CA, August 3-6, 1997.

108.
"A new Programmable Logic Family
Using Multiple-Input Floating Gate Transistors," J. Ramírez-Angulo and G.
Gonzalez-Altamirano,* 40th Midwest
Symposium on Circuits and Systems*, Santa Barbara, CA, August 3-6, 1997, pp.
354-357

109.
"A
continuous-time Analog Median Filter," Alejandro Diaz-Sánchez, J.
Ramírez-Angulo and Antonio Lopez. *IEEE-NSIP 97*, McKinack Island, Michigan,
Sept. 8-10, 1997

110.
"An analog Approximation to
median filtering," Alejandro Diaz-Sánchez, J. Ramírez-Angulo and Antonio
Lopez, *ELECTRO'97*, pp. 111-114,
Chihuahua, Mexico, October 27-31 !997, .

111.
"A Current-mode continuous time
adaptive filtering," Alejandro Diaz-Sánchez, and J. Ramírez-Angulo, *ELECTRO'97*, pp. 106-110, Chihuahua,
Mexico, October 27-31 1997.

112.
"Building Blocks of Linear and
Nonlinear Circuits Based on Operational Transconductance Amplifiers,"
Anthony Esquibel, Spyros Andreou and J. Ramírez-Angulo, *Nasa URC Technical Conference 98*, February 22-26, 1998, Hunstsville
Alabama,

113.
"Novel Programmable Linear and
Nonlinear Oscillator Architectures," Catharine Rice and J. Ramírez-Angulo,
*Nasa URC Technical Conference 98*,
February 22-26, 1998, Hunstsville Alabama,pp. 618-622

114.
"An example of Mixed Processing
of Delta Sigma Modulated Pulse Stream," Catharine Rice and J.
Ramírez-Angulo, *Nasa URC Technical
Conference 98*, February 22-26, 1998, Hunstsville Alabama,

115.
“Low Voltage Analog Modular expandable
VLSI fuzzy inference engine,@ J. Ramírez-Angulo and J. Zrilic, *World Automation Conference 98*, May
10-14 98 Anchorage, Alaska, pp. 815-821.

116.
“Feedforward Robust Fuzzy Control,@ D.
Zrilic, E. Kosmatopoulus and J. Ramírez, *WAC'98* Anchorage Alaska, May 98, pp. 213-218.

117.
"High Performance Cell for
Solving Real Time Field Problems Using the Resistive Grid Method," N.C.
Carneiro and J. Ramírez-Angulo, *1998 IEEE
International Conference on Circuits and Systems*, May 31 - June 3, 1998,
Monterrey, CA.

118.
"Analog Building Blocks for a Sampled Data Fast Wavelet Transform
CMOS VLSI implementation," G. Gonzalez-Altamirano and J. Ramírez-Angulo, *1998 IEEE International Conference on
Circuits and Systems*, May 31 - June 3, 1998, Monterrey, CA.

119.
”An Adaptive Cell for Resistive Grid
Applications,” N. Carneiro and J. Ramírez-Angulo, *Second International Workshop on
Design of Mixed-Mode Integrated Circuits and Systems*, Guanajuato Mexico,
July 27-29 1998

120.
“A High Speed Analog Median Filter in
CMOS Technology,” A. Diaz-Sánchez, J. Ramírez-Angulo, A. Lopez and E.
Sánchez-Sinencio, *IEE-ICECS´98,* September 7-10 1998, Lisboa Portugal pp.
381-384.

121.
“A low power analog median filter,” A.
Diaz-Sánchez and J. Ramírez-Angulo, *IEEE Second International Workshop on
Design of Mixed Mode Integrated Circuits and Applicatio*ns, Guanajuato, MX
July 27-29, 1998, pp. 49-51

122.
“A Fuzzy Processor Based on Symmetric
Triangular Membership Functions, “S.M. Abdel-Hafeez, S. Straks and J.
Ramírez-Angulo, *NASA-URCTC-98*,
Hunstville, Al, Feb. 98 pp. 618-622, pp. 237-242.

123.
"Novel Low Power and Constant gm
operational amplifier using multiple-input floating-gate transistors," S.C
Choi and J. Ramírez-Angulo. *IEEE Analog
VLSI Workshop*

* *

124.
“Generador
de Funciones de Pertenencia para Procesado Difuso adaptivo,” A. Lopez-Martin,
J. Ramírez-Angulo and A. Carlosena SAAEI98, Pamplona, Spain, September 16-18
1998.

125.
“Compact Low-Voltage Analog
Defuzzifier Using Multiple-Input Floating-Gate Transistors, “ J.
Ramírez-Angulo, S.C. Choi and D. Zrilic, *Proceedings DCIS'98* Madrid
November 17-20 1998, pp. 332-337.

126.
“Linear Amplifiers with very high
Gain-Bandwidth Product, “ J. Ramírez-Angulo.1999* IEEE International Symposium on Circuits and Systems*, Orlando Fl,
May 30-June 2, pp. II-620-623

127.
“CMOS op-amps for a single supply
close to a threshold voltage and with almost rail-to-rail signal swing, “ J.
Ramírez-Angulo, A Torralba, R.G. Carvajal and J.Tombs *1999 IEEE International Symposium on Circuits and Systems*, Orlando
Fl, May 30-June 2, 99, pp. II-408-411.

128.
“A comparison of architectures for a
programmable fuzzy chip, “ T. Lund,A.Torralba, R.G. Carvajal and J
.Ramírez-Angulo, *1999 IEEE Internationa
Symposium on Circuits and Systems*, Orlando Fl, May 30-June 2, 99, pp.
V-623-626.

129.
D/A Conversion Based on Multiple Input
Floating Gate MOST, A.J. Lopez-Martin, J. Ramírez-Angulo and a. Carlosena, *Proceedings,
Midwest Symposium On Circuits and Systems*, August 8-11, 1999, Las Cruces,
NM, pp. 149-152.

130.
“An adaptive Cell for resistive grid
applications, “ N. Carneiro and J.
Ramírez-Angulo, *Proceedings, Midwest Symposium On Circuits and Systems*,
August 8-11, 1999, Las Cruces, NM, pp. 304-308.

131.
“A Compact Mixed-mode Block Fuzzifier,
“ P. Saavedra, J. Ramírez-Angulo and J.
Zrilic, *Proceedings, Midwest
Symposium On Circuits and Systems*, August 8-11, 1999, Las Cruces, NM, pp.
494-496.

132.
“A tunable low-voltage Transconductor
and its application to HF Gm-C Filter Design,” F. Munoz, R.G. Carvajal and J.
Ramírez-Angulo, *Proceedings, Midwest Symposium On Circuits and Systems*,
August 8-11, 1999, Las Cruces, NM, pp. 826-829.

133.
“Versatile CMOS and BiCMOS Linear
Transconductor Circuits,” A. Lopez-Martin, J. Ramírez-Angulo and A. Carlosena, *Proceedings,
Midwest Symposium On Circuits and Systems*, August 8-11, 1999, Las Cruces,
NM, pp. 1024-1027.

134.
“D/A Conversion Based on Multiple
Input Floating Gate MOST, “ A.J. Lopez-Martin, J. Ramírez-Angulo and a.
Carlosena, *Proceedings, Midwest Symposium On Circuits and Systems*,
August 8-11, 1999, Las Cruces, NM, pp. 149-152

135.
“Architectures for a programmable
fuzzy logic chip. A case study”. T-Lund, A.Torralba, R.G.Carvajal,
J.Ramírez-Angulo.*Proc. of the XIV Design of Circuits and Integrated Systems
Conference*, DCIS’99, Palma
de Mallorca (Spain), Nov. 16-19, 1999 pp.473-476.

136.
"Two novel low voltage
transconductors for VHF applications”. F.Muñoz, A.Torralba, R.G.Carvajal,
J.Ramírez-Angulo, *Proc. of the XIV Design of Circuits and Integrated Systems
Conference, DCIS’99*, Palma
de Mallorca, (Spain) Nov. 16-19 1999, 533-537.

137.
"Integration of multiple-input
floating-gate transistors into a top-down CAD design flow,” J.Tombs,
J.Ramírez-Angulo, R.G.Carvajal, A.Torralba, *Proc. of the XIV Design of
Circuits and Integrated Systems Conference*, DCIS’99, (Spain) Palma de Mallorca, Nov. 16-19 1999, pp. 767-771

** **

138.
"VHF Tunable CMOS Low-Voltage
Linear Transconductor and its application to HF Gm-C filter design,” F.Muñoz,
A.Torralba, R.G.Carvajal, J.Ramírez-Angulo, *Proc. of the XIV Design of
Circuits and Integrated Systems Conference*, DCIS’99, Palma de Mallorca, (Spain) Nov. 16-19 1999, 451-454.

139. “Compact Low Voltage Analog Defuzzifers Using Multiple Input Floating Gate Transistors, J. Ramírez-Angulo, S.C. Choi, and J. Zrilic," 2000 World Automation Conference, June 11-16, 2000, Maui, Hawai, pp. ISCCI-9963.

140.
“Two new VHF tunable CMOS Low-Voltage
Linear Transconductor and its Application to HF gm-C filter Design," F.
Munoz, A. Torralba, J. Toms, and J. Ramírez-Angulo, *IEEE International
Symposium on Circuits and Systems (ISCAS) 200*0, May 28-31, Geneve,
Switzerland, pp. V-173-176

141.
"Floating Gate Based Tunable
Low-Voltage Linear Transconductor and its application to HF,". Munoz, A.
Torralba, J. Toms, and J. Ramírez-Angulo, *IEEE International Symposium on
Circuits and Systems (ISCAS) 200*0, May 28-31, Geneve, Switzerland, pp.
IV-465-468.

142.
"High Speed High Precision
Voltage Mode MIN/MAX Circuits in CMOS Technology, " R.G. Carvajal, J.
Ramírez-Angulo and J. Tombs,* IEEE International Symposium on Circuits and
Systems (ISCAS) 2000* , May 28-31, Geneve, Switzerland, pp. V-13-16.

143.
“A 1.5V linear transconductor with
wide bandwidth ands wide input and output signal swings," J. Ramírez-Angulo, R.G. Carvajal, A. Torralba and j. Martinez-Heredia, *IEEE
International Symposium on Circuits and Systems (ISCAS) 2000*, May 28-31,
Geneve, Switzerland, pp. V-161-164

144.
"A Fully Parallel CMOS Analog
Median Filter, " A. Diaz-Sánchez, J. Ramírez-Angulo, A. Lopez and E.
Sánchez-Sinencio,” *IEEE International Symposium on Circuits and Systems
(ISCAS) 2000*, May 28-31, Geneve, Switzerland, pp. II-593-596.

145.
"1.4V Supply, wide swing, high
frequency CMOS Analogue multiplier with high current efficiency," J. Ramírez-Angulo, R.G. Carvajal, and . J.
Martinez-Heredia, *IEEE International Symposium on Circuits and Systems
(ISCAS) 2000*, May 28-31, Geneve, Switzerland, pp. V-533-536.

146.
“Very Low-Voltage Class AB CMOS and
Bipolar Precision Current rectifiers," J. Ramírez-Angulo,” R.G. Carvajal,
J. Tombs and A. Torralba, *IEEE International Symposium on Circuits and
Systems (ISCAS) 2000*, May 28-31, Geneve, Switzerland, pp. III-5-9.

147.
“Modular Expandable Analog Defuzzifers
Using Multiple Input Floating Gate Transistors," J. Ramírez-Angulo, S.C. Choi, and J. Zrilic, *IEEE
International Symposium on Circuits and Systems (ISCAS) 2000*, May 28- 31, Geneve, Switzerland, pp.
V-381-384.

148.
"An Analog Median Filter for Low
Power Applications," A.
Diaz-Sánchez and J. Ramírez-Angulo, *IEEE 43drd Midwest Symposium on Circuits
and Systems. Lansing, MI, August 8-11, 2000, session WA6.*

149.
"Analog VLSI Weighted Median
Filters," A. Diaz-Sánchez and J.
Ramírez-Angulo, *IEEE 43drd Midwest Symposium on Circuits and Systems.
Lansing, MI, August 8-11, 2000, session WA6*

* *

150.
“Low Voltage High Performance CMOS
Current Mirrors," J.
Ramírez-Angulo, R.G. Carvajal and A. Torralba, *IEEE 43drd Midwest Symposium
on Circuits and Systems. Lansing, MI, August 8-11, 2000, Session WA6.*

* *

151.
“Low supply voltage high performance
CMOS current mirror with low input and output voltage requirements, " J. Ramírez-Angulo, R.G. Carvajal and A.
Torralba, *IEEE DCIS’2000 Design of Circuits and Integrated Systems 2000,
Montpelier, France, November 22-24 ^{th, },2000.*

* *

152.
“ A four quadrant 1.4V supply, wide
swing, high frequency CMOS analogue multiplier with high current efficiency,
" J. Ramírez-Angulo, R.G. Carvajal,
A. Torralba and J. Martinez-Heredia. *IEEE DCIS’2000 Design of Circuits and
Integrated Systems 2000, Montpelier, France, November 22-24 ^{th, },2000.*

153.
“ A 1.1V Low-Power Sigma-Delta
Modulator for 14b, 16KHz A/D conversion, " F. Munoz, A.P. Vega-Leal,
R.G. Carvajal, A. Torralba and J. Ramirez-Angulo. *IEEE DCIS’2000
Design of Circuits and Integrated Systems
2000, Montpelier, France,
November 22-24 ^{th, },2000.*

154.
“ Low Voltage class AB output stages
for CMOS op-amps using floating gate capacitors, " R.G. Carvajal, A. Torralba and J.
Ramirez-Angulo, J. tombs and F. Munoz. *IEEE DCIS’2000 Design of Circuits and
Integrated Systems 2000, Montpelier, France, November 22-24 ^{th, },2000*

155.
“ Class AB output stages for
low-voltage CMOS op-amps with accurate quiescent current control by means of
dynamic biasing, " A. Torralba,
R.G. Carvajal, J. Ramirez-Angulo, J. Martinez-Heredia and A.P. Vega-Leal. *IEEE
DCIS’2000 Design of Circuits and Integrated Systems 2000, Montpelier, France,
November 22-24 ^{th, },2000*

* *

156.
“ High Speed Compact CMOS Circuits for
continuous-time linear weighted voltage addition, " J. Ramírez-Angulo. ^{th, },2000.

157.
"Low Voltage Continuous Time
Tunable High Frequency Filters Based on Floating Gates and Dynamic Biasing
Techniques," F. Munoz, A. Torralba, J. Toms, J. Ramirez-Angulo, *2001
Southwest Symposium on Mixed-Signal Design*
Austin, TX February 25-27, 2001

158.
"Compact CMOS Circuits for High
Speed continuous-time linear weighted voltage addition," Jaime
Ramirez-Angulo and Francisco Ledesma*, IEEE International Symposium on
Circuits and Systems*, May 6-9, 2001 Sidney Australia, pp. I-707-I-710.

159.
"A new Class AB differential
Input stage for implementation of low voltage high slew rate op-amps and linear
transconductors," J.
Ramirez-Angulo, R. Gonzalez-Carvajal, A. Torralba and Carlos Nieva, *IEEE
International Symposium on Circuits an Systems*, May 6-9, 2001 Sidney Australia, pp. I-671-I-674.

* *

160.
"A 1.1V Low-Power sigma-delta
Modulator for 14-b 16KHz A/D Conversion,"
F. Munoz, A.P. VegaLeal, R. G.
Carvajal, A. Torralba, J. Tombs and J. Ramírez-Angulo, *IEEE International Symposium on Circuits
an Systems*, May 6-9, 2001 Sidney Australia, I-619-I-622

* *

161.
“Low voltage class AB output stages
for CMOS op-amps using floating capacitors," R. G. Carvajal, A. Torralba, J. Tombs and J. Ramírez-Angulo, F.
Munoz, *IEEE International Symposium
on Circuits an Systems*, May 6-9, 2001, Sidney Australia, I-13-I-16.

162.
"Some techniques for low-voltage
operation of continuous-time analog CMOS circuits," Jaime Ramirez-Angulo, *2 ^{nd}
Dallas IEEE Workshop on Low-Voltage Mixed-signal Circuits and systems*, March 26

** **

163.
"Innovative Built-In Self-Test
Schemes for On-Chip Diagnosis, Compliant with the IEEE 1149.4 Mixed-Signal Test
Bus Standard: Time to Market-Reduction," Gladys Omayra Ducoudray Acevedo,
Jaime Ramirez-Angulo Proceedings of the *Third IEEE International Conference on Devices, Circuits and Systems
(ICCDCS)* , February 11-12, 2001 Cancun, Mexico, pp. 131-134

** **

164.
“An analog median filter with
Feedforward adaptation. “ Alejandro Díaz-Sánchez and Jaime Ramírez-Angulo*, 45 ^{th} Midwest Symposium on
Circuits and Systems, Dayton, Ohio, August 14-17 2001*

** **

165.
“Built In self test Scheme for on-Chip
Diagnosis compliant with IEEE 1149.4 Mixed-signal test bus standard,” G. O.
Ducoudray-Acevedo and Jaime Ramirez-Angulo, SAAEI’01, Matanzas Cuba
17-19 Sept. 2001, SP2-IV

166.
“Effect of restrained neighborhood in analog
median filters” A. Diaz-Sanchez and
Jaime Ramirez-Angulo, *SAAEI’01*, Matanzas Cuba 17-19 September
2001

** **

167.
“New
Architectures of class AB operational amplifiers for low-voltage low-power
applications,” *Jaime Ramirez-Angulo ^{1,},
Ramon Gonzalez-Carvajal^{2}, Antonio Torralba^{2 }and C. Nieva,
*

* *

168.
“Analog Adaptive Median Filters for Impulse Noise Removal**,”**Alejandro Díaz-Sánchez, Jaime
Ramírez-Angulo, Electro 2001, pp. 287-290, October 22-26, 2001 Chihuahua,
Mexico.

169.
“Behavior Analysis and Testing of Resistive Opens in the clock
Circuitry of Memory Elements, “ Antonio Zenteno, Victor Champac and Jaime
Ramirez-Angulo * Proceedings of 3 ^{rd}
Latin American Test Workshop*,
Montevideo, Uruguay, February 10-13

170.
Gladys
Omayra Ducoudray Acevedo, Jaime Ramirez-Angulo, “ VDDQ: A Buitl In
Selft-test Scheme for Analog
On-chip Diagnosis Compliant with the
IEEE with the 1149.4 Mixed-Signal Test Bus Standard.,“ *Fourth IEEE International Caracas Conference on Devices, Circuits and
System*s, Aruba,
April 17-19, 2002, pp. 1026-1 1026-4^{}

171.
”A 1.1V Very Low-Power SD Modulator For 14-b 16KHz A/D Conversion Using A Novel Class AB
Transconductance Amplifier,”. J. Galan
, A. P. VegaLeal^{1}, F. Muñoz^{1}, R. G. Carvajal ^{1},
A. Torralba ^{1}, J. Tombs^{1} and J. Ramírez-Angul*o,
2002 IEEE International Symposium on Circuits and Systems, *May 26-29, 2002,
Scottsdale, AZ pp. II-616-II-619^{}

^{ }

172.
“Comparison of two Schemes for Continuous-time sub-volt Op-amp Operation,”
Jaime Ramirez-Angulo, Antonio Torralba and Ramon Gonzalez-Carvajal*, **2002 IEEE International Symposium on
Circuits and Systems, *May 26-29, 2002, Scotttsdale, AZ. pp.I-305 I-308^{}

^{ }

^{ }

** **

173.
“The Multiple Input Linear Weighted
Differential Amplifier: a New Versatile
Analog Circuit Building Block ,”** **Jaime
Ramirez-Angulo and Francisco Ledesma**, ***2002 IEEE International Symposium on Circuits and Systems, *May
26-29, 2002, Scottsdale, AZ, pp. III-747-750^{}

174.
“Low-Power Low-Voltage Class-AB Linear
OTA For HF Filters With A Large Tuning Range,” J.A.Galán^{2}, R.G.
Carvajal^{1}, F.Muñoz^{1}, A.Torralba^{1},
J.Ramírez-Angulo, *2002 IEEE International
Symposium on Circuits and Systems*, May 26-29, 2002, Scottsdale, AZ pp.
II-9-II-12^{}

175.
“The
Flipped Voltage Follower: A useful cell for low-voltage low-power circuit
design.”** **J.Ramírez-Angulo^{2},
R.G.Carvajal^{1,}, A.Torralba^{1}, J. Galan^{1}, A. P.
Vega-Leal^{1}, and J. Tombs, *2002
IEEE International Symposium on Circuits and Systems, *May 26-29, 2002,
Scottsdale, A, pp. II-615-II618

* *

176.
*”*A Simple technique to significantly enhance slew rate and bandwidth
of one-Stage cmos operational amplifiers,” Jaime Ramirez-Angulo and Michael Holm*es, 2002 IEEE International Symposium on Circuits and Systems, May
26-29, 2002, Scottsdale, A*. pp. II-II-835-II-838.

177.
“Innovative
Built-in self-test Scheme for on-chip Diagnosis, Compliant With the IEEE 1149.4
Mixed-signal Test Bus Standard, “** **Gladys Omayra
Ducoudray Acevedo , Jaime Ramirez-Angulo, *,
2002 IEEE International Symposium on Circuits and Systems, *May 26-29, 2002,
Scottsdale, Az., pp. I-148-I-152

* *

178.
*”*Compact Continuous-time analog rank-order Filter Implementation in
CMOS technology,” Jaime Ramírez-Angulo, Chad Lackey and Alejandro Díaz-Sanchez**,***, 2002 IEEE International Symposium on
Circuits and Systems*, May 26-29, 2002, Scottsdale, Az, pp. V-65-V-68

179.
Low-power low-voltage analog electronic
circuits using the flipped voltage follower, .”** **J.Ramírez-Angulo^{2},
R.G.Carvajal^{1,}, A.Torralba^{1}, J. Galan^{1}, A. P.
Vega-Leal^{1}, and J. Tombs,
2002 International Symposium on Industrial Electronics, L’Aquila, Italy
July 8-11, 2002.

180. “Comparison of New and Conventional Low Voltage Current Mirrors, “ F. Ledesma, J. Ramirez-Angulo and R, 2002 IEEE Midwest Symposium on Circuits and Systems, Tulsa, OK, Aug. 4-7 2002, pp. II-49-52

181. “A new Family of low voltage circuits based on quasi-floating gate transistors, “ C. Urquidi J. Ramirez-Angulo , 2002 IEEE Midwest Symposium on Circuits and Systems, Tulsa, OK, Aug. 4-7 2002, pp. I-93-96

182. “On-chip iDD pulse response method using a high speed dynamic current sensor, “ G Omaira Ducoudray and J. Ramirez-Angulo, 2002 IEEE Midwest Symposium on Circuits and Systems, Tulsa, OK, Aug. 4-7 2002.pp. II-282-285.

183. “New Architectures of Class AB CMOS and BiCMOS operational amplifier using local common mode feedback, “ M. Holmes, J. Ramirez-Angulo and R, 2002 IEEE Midwest Symposium on Circuits and Systems, Tulsa, OK, Aug. 4-7 2002

184. “Class-AB Linear OTA For Low-Power Low-Voltage HF Filters With A Large Tuning Range,” Juan Antonio Gomez Galan, Ramon Gonzalez Carvajal, Fernando Muñoz Chavero, Antonio Torralba , DCIS 2002 Nov. 19-22, Santander, Spain,

** **

185.
“Low voltage Class-AB Output Stages
for CMOS Op-Amps,” R. Carvajal, A. Torralba, J. Ramirez-Angulo, J. Tombs, F.
Muñoz, ESSCIRC’02, September 24-26, Florence, Italy

186.
“A New Compact Low-Power High Slew Sate Class AB CMOS Buffer, “A.Torralba,
R.G.Carvajal, J. Galán, and J.Ramírez-Angulo, ISCAS 2003, May 25-28, Bangkok, Thailand

187. “A Low-Power Low-Voltage OTA-C Sinusoidal Oscillator with more than two decades of Linear Tuning Range, “ J.Galán, R.G. Carvajal1, F.Muñoz, A.Torralba, J.Ramírez-Angulo ISCAS 2003, May 25-28, Bangkok, Thailand

188.
“New output stage for low supply
voltage, high-performance CMOS current mirrors, “ *A.Torralb1, R.G. Carvajal,
F. Muñoz and J. Ramírez-Angulo, *ISCAS 2003, May 25-28, Bangkok, Thailand

189.
“New low-power low-voltage
differential class-AB OTA for SC circuits,”
*G. Carvajal, J. Galán, J. Ramírez-Angulo and A. Torralba, *ISCAS
2003, May 25-28, Bangkok, Thailand

190.
“Sub-volt supply analog circuits based
on quasi-floating gate transistors,” Ja*ime Ramirez-Angulo, Carlos Urquidi,
Ramon Gonzalez-Carvajal and Antonio Torralba *ISCAS 2003, May 25-28,
Bangkok, Thailand

191.
“Low-Voltage Closed-Loop Amplifier
Circuits Based on Quasi-Floating Gate Transistors,” *Jaime Ramirez-Angulo, Antonio J. Lopez-Martin and Ramon G.
Carvajal, *ISCAS 2003, May 25-28, Bangkok, Thailand

192.
“Low Voltage Low-Power Wideband CMOS
Current Conveyors Based on The Flipped Voltage Follower,” *Antonio J. Lopez-Martin, Jaime Ramirez-Angulo,
and Ramon G. Carvajal, *ISCAS 2003,
May 25-28, Bangkok, Thailand

193.
“A Novel Design Technique for Very
Low-Voltage MOS Translinear Circuits,” *Antonio
J. Lopez-Martin, Alfonso Carlosena and Jaime Ramirez-Angulo, *ISCAS 2003,
May 25-28, Bangkok, Thailand

194. “New Very Compact Continuous-Time Low-Voltage Analog Rank-Order Filter Architecture, “ Jaime Ramírez-Angulo1 , R. Gonzalez-Carvajal and Gladys Omayra Ducoudray , ISCAS 2003, May 25-28, Bangkok, Thailand

195.
“Extremely Low Supply Voltage Circuits
Based on Quasi-Floating Gate Supply Voltage Boosting”, Fernando Munoz, Antonio
Lopez-Martin, Ramon G. Carvajal, Jaime Ramirez-Angulo, A.Torralba, Meghraj
Kachare and B. Palomo ,* , *ISCAS 2003, May 25-28, Bangkok, Thailand

196.
“A New 1.5V Linear Transconductor with
High Output Impedance in a Large Bandwidth,” A.Torralba, J. Martmnez-Heredia,
R.G.Carvajal and J.Ramirez-Angulo, *, *ISCAS 2003, May 25-28, Bangkok,
Thailand

* *

197.
“A high-speed Dynamic Current Sensor
for iDD Test Based on the Flipped Voltage Follower, “ Gladys Omayra Ducoudray, Ramon
González-Carvajal, Jaime Ramírez-Angulo, SSMSD February 23-25 2003, Las Vegas,
Nevada

** **

198.
A New Power Efficient Fully
Differential Low Voltage Two Stage Op-Amp Architecture ,” J. Ramírez-Angulo S.
Thoutam G.O. Ducoudray and R.G. Carvajal, Proceedings of the VLSI'03 conference
: June 23-26, 2003, pp. 87-91, Las Vegas, Nevada, USA.

** **

199.
“Highly Linear Wide Input Range CMOS
OTA Architectures Operating in
Subthreshold and Strong Inversion,” J.
Ramirez-Angulo, C. Durbha, G. O. Ducoudray-Acevedo and R. G. Carvajal, VLSI'03:
June 23-26, 2003,pp. 345-350, Las
Vegas, Nevada, USA.

** **

200.
“Low
Voltage Wide gm Adjustment Range Highly Linear BiCMOS OTA,” J. Ramírez-Angulo , C. Durbha,
G. O. Ducoudray-Acevedo and R.G. Carvajal 11th Annual NASA Symposium on VLSI Design
, Coeur d’Alene Idaho May 28-29, 2003

201. “A 1.5V, 8-BIT, 10MS/S CMOS Pipeline Analog-to-Digital Converter". B. Palomo, F. Muñoz, R.G. Carvajal, A. Torralba and J. Ramírez-Angulo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

202. "New low-voltage high-gain differential OTA for SC circuits" R.G. Carvajal, B. Palomo, A. Torralba, F. Muñoz and J. Ramírez-Angulo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain.

203. "A Simple Alternative to Switched-Op-amps or Voltage Doublers For Very Low Voltage SC Circuits". F. Muñoz, J. Ramírez-Angulo, A. Lopez-Martin , R.G. Carvajal, A.Torralba and B. Palomo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

204. "New low-power low-voltage differential class-AB OTAs for SC circuits". Ramon Carvajal, Juan Galan, Jaime Ramirez-Angulo, Antonio Torralba and Bernardo Palomo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

205. "A Novel Technique for Very Low Voltage Rail-to-Rail CMOS Track-and-Hold Circuits". Jaime Ramirez-Angulo,Antonio J. López-Martín, Ramón G. Carvajal and Chad Lackey, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

206. "Low-voltage CMOS four quadrant multipliers based on Flipped voltage followers". Jaime Ramirez-Angulo, Shanta Thoutam, Antonio Lopez-Martin and Ramon G. Carvajal, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

207.
"A Low-Voltage Wide Tuning Range
gm-C VCO Using A Class-AB Linear OTA". Juan Galan,Ramom G. Carvajal, Fernando Muñoz, Antonio Torralba, Jaime Ramirez-Angulo
and Marta Laguna, XVIII Conference on
Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003,
Ciudad Real, Spain.

208. "A New Compact Low-Power High Slew-Rate Class AB CMOS Buffer". Antonio Torralba, Ramon Carvajal, Juan Galan, Jaime Ramirez-Angulo and Marta Laguna, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

209. "MOS and bipolar translinear cells and applications for implementation of low distortion OTAs". Jaime Ramirez-Angulo, Chandrika Durbha, Gladys Omayra Ducoudray, Ramon G. Carvajaland Meghraj Kachare, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

210. "Resistorless and capacitorless schemes for continuous-time linear weighted voltage addition using multiple input fully differential operational amplifiers". Francisco Ledesma and Jaime Ramirez-Angulo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain.

211. "Very Low Voltage Analog Signal Processing Based on the MOS Translinear Principle". Carlos A. De La Cruz Blas, Sara Gallego, Antonio J. López-Martín, Alfonso Carlosena and Jaime Ramirez-Angulo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

212. "A fully differential, 1.5V supply, high linearity, large bandwidth transconductor with high output impedance ". Juana Martínez-Heredia, Antonio Torralba, Ramón Carvajal and Jaime Ramírez-Angulo, XVIII Conference on Design of Circuits and Integrated Systems DCIS 2003, November 18-21, 2003, Ciudad Real, Spain

** **

213.
**“**1.5V Rail-to-Rail Programmable-Gain CMOS
Amplifier**, “** Jaime Ramírez-Angulo ^{1},
Antonio J. López-Martín , Ramón G. Carvajal, and Chad Lackey**,** ESSCIRC '03. 16-18 Sept., 2003,
Estoril, Lisboa Pages:373 - 376.

214.
“Techniques
for very low-voltage operation of continuous-time analog CMOS circuits,” J.
Ramirez-Angulo, R. Gonzalez-Carvajal, A. Lopez-Martin, *Proceedings 17th
International Conference on VLSI Design, 2004*. 5-9 Jan. 2004 Pages:39 - 44

215.
“A novel
serial multiplier using floating-gate transistors, “Luis F. Cisneros-Sinencio,
Alejandro Diaz-Sanchez, Jaime Ramirez-Angulo, *2004 IEEE International
Symposium on Circuits and Systems,* May 23-26 2004, Vancouver, Canada pp.
I-861-864

216.
“Novel Architectures of Class AB CMOS current
mirrors with programmable gain, Chandrika Durbha, Jaime Ramírez-Angulo, Antonio
Lopez-Martin and Ramon Gonzalez-Carvajal., ,* 2004 IEEE International
Symposium on Circuits and Systems,* May 23-26 2004, Vancouver, Canada , pp.
IV-760-763.

217.
“Power Efficient Fully Differential Low-Voltage Two
stage Class AB/AB op-amp architectures,”, Shanta Thoutam, Jaime Ramírez-Angulo,
Antonio Lopez-Martin and Ramon Gonzalez-Carvajal., ,* 2004 IEEE International
Symposium on Circuits and Systems,* May 23-26 2004, Vancouver, Canada pp.
I-733-736

218.
“Highly Linear Wide tuning range CMOS transconductor
operating in moderate inversion,”, Chandrika Durbha, Jaime Ramírez-Angulo,
Antonio Lopez-Martin and Ramon Gonzalez-Carvajal., ,* 2004 IEEE International
Symposium on Circuits and Systems,* May 23-26 2004, Vancouver, Canada,
I-805-808.

219.
“A novel family of Low-voltage very low power super
class AB OTAs with significantly enhanced slew rate and Bandwidth,”, Sushmita
Baswa, Jaime Ramírez-Angulo, Antonio Lopez-Martin and Ramon Gonzalez-Carvajal.,
,* 2004 IEEE International Symposium on Circuits and Systems,* May 23-26
2004, Vancouver, Canada, I-729-732.

220.
“Winner take-all class AB input stage : A novel
concept for low-voltage power efficient class AB amplifiers,”, Sushmita Baswa,
Jaime Ramírez-Angulo, Antonio Lopez-Martin and Ramon Gonzalez-Carvajal., ,*
2004 IEEE International Symposium on Circuits and Systems,* May 23-26 2004,
Vancouver, Canada, pp. I-1028-1031.

221.
“Compact tunable CMOS OTA with high linearity,”,
Meghraj Kachare, Jaime Ramírez-Angulo, Antonio Lopez-Martin and Ramon
Gonzalez-Carvajal., ,* 2004 IEEE International Symposium on Circuits and Systems,*
May 23-26 2004, Vancouver, Canada I-693-696.

222.
“A low-voltage rail-to-rail V-I conversion scheme
for applications in current –mode a/D converters,”, Rahul Shukla, Jaime
Ramírez-Angulo, Antonio Lopez-Martin and Ramon Gonzalez-Carvajal., ,* 2004
IEEE International Symposium on Circuits and Systems,* May 23-26 2004,
Vancouver, Canada I-916-919.

223.
“High Speed, High precision Analog Rank order filter
in CMOS technology,”, Ramon Gonzalez Carvajal, Jaime Ramírez-Angulo, Gladyrs
Omayra Ducoudray-Acevedo, and Antonio Lopez-Martin., * 2004 IEEE International Symposium on Circuits
and Systems,* May 23-26 2004, Vancouver, Canada pp. I-793-796.

224.
“Low-voltage CMOS Analog Four quadrant
multiplier based on flipped voltage followers,”, Jaime Ramírez-Angulo, Shanta
Thoutam, Ramon Gonzalez-Carvajal.and Antonio Lopez-Martin, ,* 2004 IEEE
International Symposium on Circuits and Systems,* May 23-26 2004, Vancouver,
Canada, I-681-684

** **

225.
“A New Flip Flop Gate Based on
Floating Gates,” L. F. Cisneros Sinencio, A. Diaz-Sanchez, J. Ramirez-Angulo*,
ICEEE and X CIE*, Acapulco, Mexico,
September 8-10, 2004

226.
S. Baswa, M. Bikumandla , J.
Ramírez-Angulo, A. J. López-Martín , R.G. Carvajal: “Low-Voltage Low-Power
Super Class-AB CMOS OP-AMP with Rail-to-Rail Input/Output Swing.”, *Fifth
International Caracas Conference on Devices, Circuits and Systems*, November
3-5 2004, Punta Cana, Dominican Republic

227.
J.
Ramírez-Angulo, A.. J. López-Martín_{, }R. G.
Carvajal “New Low-Voltage Class AB/AB CMOS Op-amp with
rail-to-rail input/output swing ,” Shanta Thoutam_{,}
Milind-Subhash Sawant, XIX Conference on Design of Circuits and Integrated
Systems, Bordeaux, France, November 24-26, 2004

* *

228.
A. Torralba,
R.G.Carvajal, F.Muñoz, J. Ramírez-Angulo, New Low Voltage Class-AB CMOS
Unity-Gain Buffer and Current Mirror, XIX Conference on
Design of Circuits and Integrated Systems, Bordeaux, France, November 24-26,
2004

* *

229.
J. Ramirez-Angulo, C. Durbha, A.J.
López-Martín, and R. G. Carvajal ,”Tunable Gm-C Biquadratic Filter Operating in
Moderate Inversion “XIX Conference on Design of Circuits and Integrated
Systems, Bordeaux, France, November 24-26, 2004

* *

230.
J.
Ramírez-Angulo, A.. J. López-Martín_{, }R. G.
Carvajal,” Very
Low-Voltage Class-AB CMOS Precision Current Rectifier and Current Mirror,” XIX Conference on Design of Circuits and Integrated Systems,
Bordeaux, France, November 24-26, 2004

* *

231.
S. Baswa, A. J.
López-Martín, J. Ramirez-Angulo, and R. G. Carvajal,” A
New Family of Low-Voltage Power-Efficient Class AB CMOS OTAs,” XIX Conference
on Design of Circuits and Integrated Systems, Bordeaux, France, November 24-26,
2004

* *

232.
A. J.
López-Martín, J. Ramirez-Angulo, C. Durbha, and R. G. Carvajal, “Fully-Differential CMOS Current Conveyor Operating in Moderate
Inversion,”, XIX Conference on Design of Circuits and Integrated Systems,
Bordeaux, France, November 24-26, 2004.

233.
P.
Rodiz-Obaya, J. J. Rodríguez-Andina, and J. Ramírez-Angulo “An accurate
algorithm for transistor sizing in analog CMOS design ,”, XIX Conference on
Design of Circuits and Integrated Systems, Bordeaux, France, November 24-26,
2004

234.
** “**Power-Efficient Super Class AB OTAs,” Antonio J. López-Martín, Sushmita Baswa, Jaime Ramirez-Angulo, and
Ramón G. Carvajal, ESSCIRC 2004, 21-23 September , 2004, Leuven, Belgien.

235.
“A Compact Micropower Class AB CMOS Sample and Hold
Circuit,” Xabier
Ugalde, Antonio J. Lopez-Martin, Carlos A. De La Cruz Blas, Alfonso Carlosena,
Ramon G. Carvajal, Jaime Ramirez-Angulo, New Mexico State University, USA, *XX
**Conference on Design of
Circuits and Integrated Systems DCIS 2005, November 18-21, 2005, Lisboa,
Portugal** * (accepted for presentation)

236.
“Class-AB Low-Voltage CMOS Unity-Gain Buffers,” Mariano Jimenez,

Antonio Torralba, University of Sevilla, S Ramon G. Carvajal, Jaime
Ramirez-Angulo, *XX **Conference
on Design of Circuits and Integrated Systems DCIS 2005, November 18-21, 2005,
Lisboa, Portugal** *(accepted
for presentation)

237.
”A
Low-Voltage all Cascode High Performance CMOS Current Mirror and Applications,”
Annajirao Garimella,
Lalitha Garimella, Jaime Ramirez-Angulo, Ramon G. Carvajal, Antonio J. Lopez-Martin,
*XX **Conference on Design of
Circuits and Integrated Systems DCIS 2005, November 18-21, 2005, Lisboa,
Portugal** *(accepted
for presentation)

238.
“Low-Power Super Class AB OTAs based on adaptive
techniques,” Ramon G.
Carvajal, Jaime Ramirez-Angulo, Antonio Lopez-Martin, Juan Galan, Carlos
Rubia-Marcos,* XX *

239.
“CMOS Transconductor with 75-dB SFDR for Rail-to-Rail
Input Swings,” Antonio
J. Lopez-Martin, S Jaime Ramirez-Angulo, Ramon G. Carvajal, *XX ** *(accepted for presentation)

240.
“New
Rail-to-Rail Input Stage With Reduced Supply Requirements,” Ivan Padilla, Jaime Ramirez-Angulo,
Ramon G. Carvajal, Antonio Lopez-Martin. *XX ** *(accepted for presentation).

241.
“MOS Resistor Linearization and Range Improvement
Using Large Resistive Biasing Elements and Capacitive Voltage Averaging,” Jaime Ramirez-Angulo, Milind S.
Sawant, Ramon G. Carvajal, Antonio Lopez-Martin, *XX Conference on Design of Circuits and Integrated Systems
DCIS 2005, November 18-21, 2005, Lisboa, Portugal* (accepted for presentation)

242.
“A 3-V 3-mW CMOS Transconductor with 75-dB SFDR for
Rail-to-Rail Input Swings,” Antonio J. Lopez-Martin, Jaime Ramirez-Angulo, Ramon G. Carvajal, *XX** Conference on Design of Circuits and Integrated
Systems DCIS 2005*, November
18-21, 2005, Lisboa, Portugal (accepted for presentation).

243.
“Low Voltage Low
Noise Amplifier for Radio Frequency Applications,” Francisco Rafael Trejo-Macotela,
Alejandro Diaz-Sanchez, Jaime Ramirez-Angulo,
*IEEE Midwest Symposium on Circuits and Systems*, Cincinnati, OH August
21-23 2005.

244.
“Wide gm Adjustment
Range Highly Linear OTA with Programmable Mirrors” Milind Subhash Sawant, Jaime
Ramirez-Angulo, Ramon Carvajal, Antonio Lopez-Martin*, IEEE Midwest Symposium
on Circuits and Systems*, Cincinnati, OH August 21-23 2005.

245.
“New Compact
Implementation of Very High Performance CMOS Current Mirrors,” Milind
Subhash Sawant, Jaime Ramirez-Angulo, Ramon Carvajal, Antonio Lopez-Martin, *IEEE Midwest Symposium on Circuits and
Systems*, Cincinnati, OH August 21-23 2005.

246.
“New Compact and
Versatile Wide Tuning Range CMOS Voltage Controlled Oscillator,” Annajirao Garimella, Lalitha M
Kalyani-Garimella, Randy Romero, Jaime
Ramirez-Angulo, Ramon G. Carvajal and Antonio Lopez-Martin*, IEEE Midwest
Symposium on Circuits and Systems,* Cincinnati, OH August 21-23 2005.

247.
“Low Voltage
Rail-to-Rail Operatoinal Amplifier Based on Flipped Voltage Followers, Ivan Padilla, Jaime Ramirez-Angulo, Ramon Carvajal, Antonio Lopez-Martin and Ramon G. Carvajal, *IEEE
Midwest Symposium on Circuits and Systems, *Cincinnati, OH August 21-23
2005.

248.
“Compact Low
Voltage VHF Continuous Time Current Mode FLF Filter,” Lalitha M Kalyani-Garimella, Annajirao Garimella, Laura I.
Escobedo, J. Ramirez-Angulo, Ramon G. Carvajal and Antonio Lopez-Martin, *IEEE
Midwest Symposium on Circuits and Systems*, Cincinnati, OH August 21-23
2005.

249.
“Comparison of
Conventional and New Flipped Voltage Follower Structures,” Sheetal Gupta, Ivan Padilla, Jaime
Ramirez-Angulo, Antonio Torralba and
Mariano Jimenez, *IEEE Midwest Symposium on Circuits and Systems,*
Cincinnati, OH August 21-23 2005

250.
“Low Voltage VHF Current Modem
Continuous Time Filters using
Floating gate Programmable Currentr Mirrors” Lalitha MK Garimella, Annajirao Garimella, Laura Escobedo[1],
Jaime Ramírez-Angulo 9^{th}-VDAT Symposium, August 10-13 2005,
Bangalore India

** **

Principal Co-investigator of the Project
"Characterization of Silicon‑Chrome on MOS" *Texas Instruments* (TI), Texas A&M
University,(1985:$55,000, 1986:$22,000, 1987,1988, 1989,1990: $37,000 each
year.

Principal Investigator of the Project
"Modeling of Parasitic Resistances and Capacitances in Bipolar
Transistors", *Texas Instruments (TI)*,
Texas A&M University,($42,000 April 1989 ‑ March 1990)

Principal Investigator (with J. Beasley and
S. Castillo) of proposal:"Improvement of VLSI Systems at New Mexico State
University, *AT&T Foundation*,
$10,000, October 1991

Principal Investigator of Project
"Real Time Solution of Laplace Equation With Analog VLSI Circuits", *National Science Foundation*, $60,000,
September 1991- August 1993.

Principal Investigator of project,
"IDDQ Testing of CMOS VLSI circuits using built in sensors with multiple
emitter lateral bipolar transistors", *SANDIA
National Laboratories*, $30,000, NMSU # 92948, October 1992- September 1993.

Principal Investigator of project,
"CISE Research instrumentation for Microelectronics," *National Science Foundation*, $99,520,
August 1993- July 1995, NSF proposal CDA-9222883.

Principal Investigator of "Memo of Understanding between NMSU and the Universidad Autonoma Metropolitana, Mexico" NMSU # 92689, February 28,92.

Principal Investigator of following undergraduate research projects currently
funded by CIMD-NSF (Comission to Increase Minority Degrees- *National Science Foundation*):

"Development of VLSI-oriented experiments", "Development of a PC software tool to characterize laser trimmed film resistors," and "Design of an instrument to generate multiple current sources for testing of ICs," $4014, NMSU # 92676, Spring 1992

"Design and Fabrication of Bipolar and MOS transistor arrays" and "Design of test fixtures for characterization of integrated Circuits," $2676, NMSU # 92960, Summer 1992

"Development and fabrication of CMOS analog multipliers for low-power supply requirements," $1938, NMSU # 93100, Fall 1992

"Development of a prototype to measure distance using ultrasonic transceivers," and "Design and Fabrication of integrated CMOS wideband amplifiers, $2676, NMSU # 93271, and 93272, Spring 1993

"Circuit Design for High Speed fuzzy Processors," S95UR029 and Design of Integrated Current Sensors for IDDQ Testing of VLSI Systems, S95UR039: $1512

"Design of High Frequency BCMOS buffers," S96UR032, "Design Implementation and Characterization of an Electronically Programmable Universal Filter, S96UR033, " Design of Low-Voltage, Low Power Operational Amplifiers using Multiple Input Floating Gate Transistors" S96UR034, "Prototyping Analog Defuzzifiers Using Operational Transconductance Amplifers" V96UR026 total: $7,024, Spring and Summer 1996:

Principal Investigator of proposal:
"Supplemental Supercomputer time for VLSI microelectronics", *NSF Supercomputing center* proposal #
MIP930001N, submitted Nov 1, 1992

Principal investigator of:
"Development of a PC interface and software for IDDQ current
sensors", *SANDIA National Labs,
amount awarded: $35,000*, performance period: September 1993- August 1994

Principal Investigator of "Built In
Test Techniques for Mixed-Mode VLSI Circuits", *National Science Foundation*, amount awarded: $100,000, August 1997-
July 2000.

Principal Investigator of "Static and
Dynamic current sensors for Test of Mixed-Mode VLSI Circuits", *Engineering Foundation*, amount awarded:
$25,000, performance period: October 1997- September 1998.

Research at Oak Ridge National Labs, Monolithic Systems Group, Instrumentation and Control Division, 6 weeks in Summer 1997. This was funded through ORISE Faculty Research Participation program.

Sabbatical research June 98-98 at Electronics Department of University of Seville in Spain

Principal Investigator: Equipment gift certificate 011FY00, $111,500Agilent University Grants Program to establish a new RF-VLSI laboratory, February 23, 2000

Principal Investigator: Design and Fabrication of a VLSI analog neural network for bit error rate estimation, $15,000, Air Force (subcontract trough New Mexico Highlands University), August 99-July 2000

Principal Investigator of "VLSI hardware implementation of Real Time Neuro-fuzzy processors with on chip learning, NASA/ACE ($48,000 subcontract trough New Mexico Highlands University), August 1999-Augsut 2000

Design of Mixed Signal Systems, Gift grant from Texas Instruments Inc., $150,000, August 2000-2003

Design of Low Voltage-Low power VLSI analog building blocks for aerospace and soft computing applications, NASA Center for Autonomous Control Engineering (subcontract trough

University of New Mexico) , $250,000 August 2000-August 2004.

**Currently
advising**

*Ph.D.*: Ivan Padilla ,
Annajirao Garimella, Rahul Shukla

*M.Sc.*: Carlos
Urquidi, Lalitha Garimella, Milind Sawan Sunjash, Javier Hernandez., Sheetal
Gupta, Bindu Gummani, Somya Rathi, Dimple Chiirumamilla, Jose Luis Ruiz
Chavira, Pedro Chavarria, Habeeb UR
Rahman Mohammed

** **

Presentations on Statistical Circuit Design.

- IIMAS-UNAM, Mexico, September 30,
1982

- National Institute for Astrophysics Optics and Electronics, Puebla, Mexico, October 5, 1983

- Presentations on Acoustic Surface Wave Filters:

- October 8, 1975, August 26, 1976, CINVESTAV-IPN, MX

Presentations on Thin Film Hybrid Circuits

- University of Stuttgart, Germany. Oct 20, 1977, July 13, 1981, Jan 18, 1982, June 12, 1980

- July 18, 1993, CINVESTAV-IPN, Mexico

- Applications of Operational Transconductance Amplifiers, January 2, 1989, CINVESTAV-IPN, Mexico

- VLSI Systems, Instituto Tecnologico
de Cd. Juarez, Mexico, September 1991,

- Current Mode Filters National Institute for Astrophysics Optics and Electronics, Puebla, Mexico, May 23, 1994

Short courses on Analog VLSI fuzzy processors:

- 1994 Midwest Symposium on Circuits and Systems, Rio de Janeiro, Brazil, August 13, 1995.

- September 29, 1994; New Mexico Highlands University, Las Vegas, New Mexico

- National Institute for Astrophysics Optics and Electronics, Puebla, Mexico, May 20, 1995

- Metropolitan University, Mexico,
August 19, 1994

Plenary presentations

- October 26, 1995, Plenary Talk, Conference Electro 95, Chihuahua City, Chih., Mexico, High Performance VLSI Analog Signal Processors

- Operational amplifiers operating from a single 1V supply,
CINVESTAV-IPN, Mexico, July 4
^{th}, 1996

- March 13, 1997, Plenary Talk, IEEE Seminar, Chihuahua City, Chih., Mexico, High Diseno de Sistemas VLSI"
- Short course: "Floating-Gate Transistors and Floating-Gate Circuit Design, First workshop on Design of Mixed-mode Integrated Circuits and Applications, July 28-30, Cancun, Mexico

- Plenary presentation: "VLSI
Systems," Basic Sciences Seminar:
Insituto Tecnologico de Merida, Mexico, November 24, 1997,

- Plenary presentation: "Application of Multiple input Floating-Gate Transistors in Analog Design," XII Conference on Design of Integrated Circuits and Systems, Seville Spain, November 19, 1997

Chair of Ph. D. Examination of Eva Vidal
Lopez on January 26^{st} at the Universidad Politecnica de Catalunya in
Barcelona, Spain

Applications of Floating-gate Transistors on January 26 and 27 at the Universidad Politecnica de Catalunya in Barcelona, and at the Universidad Rovira i Virgili in Tarragona both in Spain

Short course: "Low Voltage BiCMOS analog Integrated Circuits," XII

Conference on Design of Integrated Circuits and Systems, Seville Spain, November 18, 1997

Plenary presentation: *VLSI
Hardware for Fuzzy Logic* , SAAEI98 Conference Pamplona Spain on September
16, 1998

Plenary presentation: "Design of VLSI Systems" CIECE 2000, March 8, 2000, Aguascalientes, Mexico

“Low Voltage Analog CMOS Circuits Based on Floating Voltage Sources,” Texas A&M University, July 10, 2000, Seminar

“Low voltage CMOS Circuits,” *IEEE 2 ^{nd} Dallas*

“Analog VLSI: state of the art,” Tecnologico de Monterrey, campus Toluca, Mexico March 28, 2001

“Continuous time-Low voltage techniques, “ Seminar of Electronics Department of National Institute for Astrophysics, Optics and Electronics (INAOE) Puebla, Mexico, April 17, 2001

“Design of analog VLSI Systems,” New Mexico Highlands University, September 6, 2001

“VLSI Systems: where Dreams come true,” New Mexico AMP student research Conference, September 13, 2002, Las Cruces, NM

“VLSI Systems: State of the Art”, IMS Symposium, Tecnológico de Monterrey, Campus Cd. Juarez, Nov. 15, 2002

“VLSI Systems, an Overview”, Tecnologico de Monterrey, Campus Ciudad Juarez, May 13, 2003

Invited Presentations on “Low Voltage Continuous-time Analog Circuit Design”:

Seminar of the Autonomous University of Puebla, ICUAP April 10, 2003

November 21, 2003 DCIS Conference (Design of Integrated Circuits and Systems), Ciudad Real, Spain

VLSI Design 04 Conference January 9, 2004 , Mumbai India

Indian Institute of Technology January 12, 2004

Invited presentation at conference ICEEE/CIE: Multiple Input floating gate transistors: The continuous time counterpart to Switched Capacitor circuits, Acapulco, Mexico September 10, 2004

“Some techniques
for low supply voltage operation of CMOS
Circuits,” *IEEE Dallas* *Workshop on Low-Voltage and
Low Power Mixed-Signal Circuits and Systems*, Dallas, TX September 27 , 2004

Center for Electronic Engineering Research January 14, Pilani India

Indian Institute of Technology, Dehli, India January 16, 2004

IEEE fellow (January 1^{st} 2000)

Member of evaluation panel of the NSF-CISE Educational Innovation Program. April 22, 1997, Washington D.C.

Attendance of short course on "Oversampled Delta-Sigma Data Converters" in Monterrey CA on February 3-5, 1997.

Attendance of short course Design of Analog Integrated Circuits, MIT, May 1985

Development of distance education M.Sc. courses for students from Ciudad Juarez, Mexico.

Member of Technical Committee of Third IEEE International Workshop on Design of Mixed mode VLSI systems and Applications, Puerto Vallarta, Mexico July 1999.

Reviewer for:

IEEE Journal of Solid State Circuits

IEEE Transactions on Circuits and Systems

IEEE Transactions on CAD

IEE Electronics Letters

IEE Proceedings, part G

IEEE International Symposium on Circuits and Systems: 1984-2004

MWSCAS 1983-2004

Member of the Analog Signal Processing Committee (secretary for two years) of the IEEE Circuits and Systems Society.

Member of Technical Committee IEEE-ISCAS 98.

General Chair 42^{nd} Midwest
Symposium on Circuits and Systems (IEEE sponsored)

Member of the Steering Committee Midwest Symposium on Circuits and Systems

Member of the Technical Committee of the 3^{rd}
IEEE International workshop on Mixed-Mode

Member of the technical committee of the 2001 IEEE International Symposium on Circuits and Systems

Member of Technical committee of 2002 Midwest Symposium on Circuits and Systems

Member of the evaluation review panel of the Spanish Ministerium for Science and Technology November 18, 2003)

Member of the Promotion and Tenure Committee of the National Institute of Astrophysics Optics and Electronics, National Science Council (CONACYT)

*CAD*

Involved
in the development of the first switched-capacitor silicon

compiler.
This made use of a novel algorithm to
design circuits with arbitrary

magnitude
and phase response specifications

*Stability
of Laser trimmed film resistors*

Development
of the first fundamental theory to predict the long term stability of laser trimmed film resistors. Drifts due to
aging limit the maximum practical resolution achievable with these devices As a
result of this work optimal selection can now be made of the laser trim paths.
This allows increased (long term) resolution of circuits using laser trimmed
film resistors. As a result of his work novel digitally trimmable thin film
resitor and MOS transistor structures have been developed.

* *

*Integrated
(monolithic) filters:*

Publication
of Seminal paper on current-mode filters. The paper describes an approach for
implementation of continuous-time current-mode filters. Pioneer work in the
development of current-mode filters based on ladder structures

Introduction
of various new architectures of linear
transconductance amplifiers that are characterized by high linearity and very
wide gain adjustment range maintaining almost constant bandwidth. These characteristics
are extremely important from the point of view of easy tunability of continuous
time OTA-C filters.

Report of
a novel scheme for high frequency filtering that allows implementation of
integrated filters with foQ products very close to technology limits.

Introduction
of a simple and effective technique to compensate transconductor excess phase.
This makes possible operation of continuous time filters OTA-C at higher
frequencies

Development
of a new family of active filters (denoted OTA-Op-amp approach) that combines
op-amps in closed loop and OTAs in open loop in an optimal way. These technique
allows relaxing the performance requirements of both, the OTA and the op-amp

* *

*Analog
signal processing using floating gate transistors:*

Pioneering
work in the development of novel building blocks with Multiple Input Floating
Gate (MIFG) Transistors for linear and nonlinear analog signal processing
blocks.

The first
highly linear MIFG analog four quadrant multiplier that operates with a single
supply voltage of only 1.5V

The first
low-voltage (1.5V) Op-amp based on the MIFG technique.

The first
continuous-time common-mode feedback network based on the MIFG technique

The first
analog defuzzifier using MIFG transistors

*Test
of mixed-signal VLSI systems:*

Introduction
of a novel and efficient method for the
test of mixed-mode VLSI systems (which
has been patented). This method allows characterization of a mixed-mode VLSI
system with a simple global test and
without utilization of test vectors. It
has potential to reduce enormously the the cost of testing mixed-mode VLSI
circuits In this relation novel schemes for high speed dynamic current testing
have been introduced.

* *

*Implementation
of VLSI Fuzzy processors*

Development
of various new building blocks for required in modular expandable analog
neuro-fuzzy processors: the first
membership function circuits with linearly and continuously adjustable
parameters, min-max circuits, multipliers, novel analog defuzzifiers.

*VLSI
analog array processors: *

Analog
FIR filters, analog median filters, analog wavelet processors

* *

*Novel
Low-voltage techniques: *

Conception
of several innovative methods for continuous-time operation of op-amp based

circuits
with sub-volt supply requirements close to a transistor's threshold. voltage.
Among these techniques the two most relevant are: a) Low voltage circuits based on
static and dynamic floating voltage sources, b) Low voltage
circuits based floating gate and quasi floating gate
transistors

*BiCMOS
circuits:*

Development
of several novel analog BiCMOS building
blocks with improved

characteristics.
These make optimal use of the availability of MOS and

bipolar
transistors on a single silicon substrate.

* *

*Cellular
Networks:*

Pioneering
work on the solution of partial differential equations using analog VLSI
circuits. First chip for solution of Laplace (Poisson) equation using analog VLSI circuits. This has
applications in nonlinear adaptive optics. He has been also involved in the
development of analog cellular neural networks.

*Wideband
amplifiers:*

Development
of a novel approach for implementation of linear wideband amplifiers with
high-gain, and bandwidth close to technology limits.

"Integrated Circuit Fault Testing Implementing Voltage supply rail pulsing and corresponding instantaneous current response analysis," Patent 5,483,170, January 1996, Jeffrey S. Beasley, Hema Ramammurhty, Jaime Ramirez-Angulo and Mark R. DeYong

"Digitally Configurable Analog VLSI method for real time souliution of partial differential equations," Patent 6,141,676 October 31, 2000, Jaime Ramirez-Angulo Mark R. DeYong