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Ward Helms


Ward Helms
Associate Professor Emeritus
Circuits and Sensors
M326 EE/CSE Bldg.
Box 352500
University of WA
Seattle, WA 98195
Phone: (206) 543-2174
E-mail: helms@ee.washington.edu

University of Washington 1968 Ph.D.
University of Washington 1963 M.S.
Washington State University 1960 B.S.


Honors

Fellowship NDEA, Title IV (UW) Sept. 1962 (Graduate)
First Prize, IRE Student Paper Competition $100 May, 1960
Outstanding Student in College of Engineering (WSU), 1960
Certificate of Recognition, NASA, 1971

Research Interests

VLSI high frequency analog circuit design, integrated systems, and analog circuit design.

Selected Publications

"CMOS RF Integrated Systems--Trends and Challenges," D.J. Allstot, K. Choi, S.J. Fang, W.J. Helms, W. Law, and S.T. Lee, Government Microelectronics Applications Conference (GOMAC) Digest of Papers, pp. 338-345, March 2001.

"A Bandpass Sigma-Delta for Software Low-Power and Low-Voltage Radio by using PATH Technique," Yiu Wu, John Ling, and Ward J. Helms, GLSVLSI 99 Conference, Ann Arbor, Michigan, March 4-6, 1999.

"Digital-Compatible High-Performance Operational Amplifier with Rail-to-Rail Input and Out-put Ranges," with Wen-Chung S. Wu, Jay A. Kuhn, and Bruce E. Byrkett., IEEE Journal of Solid State Circuits; Vol 29, No. 1, pp63-67, Jan 1994.

"Fabrication of NMOS Capacitors with a Low-Voltage Conefficient at a Silicon Foundry," Electronic Device Letters, Vol. EDL-6, No. 1, January 1985, pp. 54-56.

"Simple compensation program optimizes op-amp response," Electronic Design News, Vol. 28, No. 22, pp. 279-289, October 28, 1983.

Recent Conference Papers

Charles T. Peach, Waisiu Law, Douglas R. Beck, Ward J. Helms, and D.J. Allstot, "Matching Considerations in I/Q A/D Converter Pairs," 2002 ISCA.

D. J. Allstot and W. J. Helms, Calibration Techniques for Low Voltage CMOS Folding/Interpolating A/D, CDADIC Industrial Advisory Board Summer Meeting, July 11-13, 2001

W.J. Helms & D.J. Allstsot, High Frequency CMOS Continuous Time Filters, CDADIC Industrial Advisory Board, Progress Report, February 1, 2001.

W.J. Helms & D.J. Allstsot, High Frequency CMOS Continuous Time Filters, CDADIC Industrial Advisory Board, July 2000.

Yiu Wu, John Ling, and Ward J. Helms, "A Bandpass Sigma-Delta for Software Low-Power and Low-Voltage Radio by using PATH Technique," GLSVLSI 99 Conference, Ann Arbor, Michigan, March 4-6, 1999.

Active Grants

Calibration Techniques for Low Voltage CMOS Folding/Interpolating A/D, CDADIC 2001-2002, $65K

High Frequency CMOS Bandpass Filters, CDADIC, for year 2000-2001, $40K

Recent Graduate Students

Yiu (Simon) Wu, EE, "Circuit Design Issues of Systems on a Chip", Qual passed, General (June 99), Final Dec 2001.

Waisiu Law, EE, "Low Noise CMOS Circuits" Qual passed, Complete June 02.

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