Gabor C. Temes

Professor
Electrical & Computer Engineering
Biography: 

Gabor C. Temes received his undergraduate education at the Technical University and Eotvos University in Budapest, Hungary, from 1948 to 1956, and his Ph.D. in Electrical Engineering from University of Ottawa, Canada in 1961. He received an honorary doctorate from the Technical University of Budapest in 1991.

He held academic positions at the Technical University of Budapest, at Stanford University and at UCLA, and worked in industry at Northern Electric R&D Laboratories (now Bell-Northern Research), as well as at Ampex Corp. He is now Professor in the Department of Electrical and Computer Engineering at Oregon State University. He has served as Department Head at both UCLA and OSU.

Temes is co-editor and co-author of Modern Filter Theory and Design (Wiley, 1973); co-author of Introduction to Circuit Synthesis and Design (McGraw-Hill, 1977); co-author of Analog MOS Integrated Circuits for Signal Processing (Wiley, 1986); co-editor and co-author of Oversampling Delta-Sigma Data Converters (IEEE Press, 1997); co-author of Understanding Delta-Sigma Data Converters (Wiley/IEEE Press, 2005), as well as a contributor to several other edited volumes. He has published approximately 300 papers in engineering journals and conference proceedings.

A Life Fellow of the IEEE, Temes served as Associate Editor of the Journal of the Franklin Institute, Editor of the IEEE Transactions on Circuit Theory, and Vice President of the IEEE Circuits and Systems Society (CAS). In 1968 and 1981, he was co-winner of the CAS Darlington Award, and in 1984 winner of the Centennial Medal of the IEEE. He received the Andrew Chi Prize Award of the IEEE Instrumentation and Measurement Society in 1985, the Education Award of the IEEE Circuits and Systems Society in 1987, the Technical Achievement Award in 1998, the IEEE Millennium Medal, and the IEEE CAS Golden Jubilee Medal in 2000. Temes was also the recipient of the IEEE Gustav R. Kirchhoff Award in 2006 the IEEE CAS Mac Van Valkenburg Award in May 2009, and the OSU College of Engineering Research Award in 2010.

Temes' recent research has dealt with CMOS analog integrated circuits, as well as data converters and integrated sensor interfaces.

Research Interests: 

Research Areas
Data converters; switched-capacitor circuits; analog and digital signal processing

Research Description
Communications, instrumentation, consumer electronics, etc. are all increasingly relying on digital signal processing (DSP) to carry out complex and time-consuming tasks. However, unavoidably, the input and output signals to all such systems had to remain analog, since signals encountered in nature are analog. Hence, interfaces are needed between the DSP core and the input/output terminals of all such systems, to process analog signals and to convert analog and digital signals into each other. With DSP technology exponentially improving in terms of speed, complexity and accuracy, the state of interface electronics has been left behind.

Temes’s research area, shared with his graduate students, encompasses many areas of interface electronics, including analog-to-digital and digital-to-analog converters, switched-capacitor filters and amplifiers, and sensor interfaces. They are also heavily involved in the use of adaptive DSP methods within the interface itself, to achieve very high accuracy which is otherwise not practical in analog circuits.

Applications of Research
The described research is of great interest to leading integrated circuit companies, which have been supporting our work for many years.

2013
He, T., J. L. Ceballos, G. C. Temes, C. - H. Chen, Y. Zhang, and Y. Jung, "Two-step incremental analogue-to-digital converter", Electronics Letters, vol. 49, issue 4, pp. 250 - 251, 02/2013. Abstract
Chen, C. - H., Y. Zhang, and G. C. Temes, "Accuracy-enhanced switched-capacitor stages using low-gain opamps", Electronics Letters, vol. 49, issue 1, pp. 22 - 23, 01/2013. Abstract
Chen, C. - H., Y. Jung, J. L. Ceballos, and G. C. Temes, "Multi-step extended-counting analogue-to-digital converters", Electronics Letters, vol. 49, issue 1, pp. 30 - 31, 01/2013. Abstract
Chen, C. - H., Y. Zhang, G. C. Temes, and J. L. Ceballos, "Noise-shaping SAR ADC using three capacitors", Electronics Letters, vol. 49, issue 3, pp. 182 - 184, 01/2013. Abstract
2012
Wang, T., W. Li, H. Yoshizawa, M. Aslan, and G. C. Temes, "A 101 dB DR 1.1 mW audio delta-sigma modulator with direct-charge-transfer adder and noise shaping enhancement", IEEE Asian Solid State Circuits Conference (A-SSCC), Kobe, Japan, IEEE, pp. 249 - 252, 11/2012. Abstract
Zanbaghi, R., S. Saxena, G. C. Temes, and T. S. Fiez, "A 75-dB SNDR, 5-MHz Bandwidth Stage-Shared 2-2 MASH ΔΣ Modulator Dissipating 16 mW Power", IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 59, issue 8, pp. 1614 - 1625, 08/2012. Abstract
Meng, X., G. C. Temes, and T. Wang, "Charge compensation technique for switched-capacitor circuits", Electronics Letters, vol. 48, issue 16, pp. 988 - 990, 08/2012. Abstract
Yu, W., and G. C. Temes, "Digital DAC calibration technique for and incremental modulators", Electronics Letters, vol. 48, issue 13, pp. 754, 06/2012. Abstract
Tong, T., P. K. Hanumolu, and G. C. Temes, "A semi-synchronous SAR ADC", Analog Integrated Circuits and Signal Processing, vol. 71, issue 3, pp. 407 - 410, 06/2012. Abstract
Chen, C. - H., J. Crop, J. Chae, P. Y. Chiang, and G. C. Temes, "A 12-bit 7 µW/channel 1 kHz/channel incremental ADC for biosensor interface circuits", 2012 IEEE International Symposium on Circuits and Systems - ISCAS 2012, Seoul, Korea (South), IEEE, pp. 2969 - 2972, 05/2012. Abstract
Tong, T., W. Yu, P. K. Hanumolu, and G. C. Temes, "Calibration technique for SAR analog-to-digital converters", 2012 IEEE International Symposium on Circuits and Systems - ISCAS 2012, Seoul, Korea (South), IEEE, pp. 2993 - 2996, 05/2012. Abstract
Li, W., T. Wang, and G. C. Temes, "Digital foreground calibration methods for SAR ADCs", 2012 IEEE International Symposium on Circuits and Systems - ISCAS 2012, Seoul, Korea (South), IEEE, pp. 1054 - 1057, 05/2012. Abstract
Jung, Y., S. Lee, C. - H. Chen, and G. C. Temes, "Double noise coupling analogue-to-digital converter", Electronics Letters, vol. 48, issue 10, pp. 557, 05/2012. Abstract
Cao, J., R. Raich, G. C. Temes, and G. Cauwenberghs, "Multi-channel mixed-signal noise source with applications to stochastic equalization", 2012 IEEE International Symposium on Circuits and Systems - ISCAS 2012, Seoul, Korea (South), IEEE, pp. 2497 - 2500, 05/2012. Abstract
2011
Zanbaghi, R., S. Saxena, G. C. Temes, and T. S. Fiez, "A 75dB SNDR, 10MHz conversion bandwidth stage-shared 2-2 MASH ΔΣ modulator dissipating 9mW", 2011 IEEE Custom Integrated Circuits Conference (CICC), San Jose, CA, IEEE, pp. 1 - 4, 10/2011. Abstract
Wang, Y., P. K. Hanumolu, and G. C. Temes, "Design Techniques for Wideband Discrete-Time Delta-Sigma ADCs With Extra Loop Delay", IEEE Transactions on Circuits and Systems I: Regular Papers, vol. 58, issue 7, pp. 1518 - 1530, 07/2011. Abstract
Yoshizawa, H., T. Yabe, and G. C. Temes, "High-precision switched-capacitor integrator using low-gain opamp", Electronics Letters, vol. 47, issue 5, pp. 315 - 316 , 03/2011. Abstract
Jung, Y., S. Lee, J. Chae, and G. C. Temes, "Low-power and low-offset comparator using latch load", Electronics Letters, vol. 47, issue 3, pp. 167 - 168 , 03/2011. Abstract
2010
Lin, J., W. Yu, and G. C. Temes, "Multi-step capacitor-splitting SAR ADC", Electronics Letters, vol. 46, issue 21, pp. 1426 - 1428, 10/2010. Abstract
Yu, W., M. Aslan, and G. C. Temes, "82 dB SNDR 20-channel incremental ADC with optimal decimation filter and digital correction", 2010 IEEE Custom Integrated Circuits Conference - CICC, San Jose, CA, IEEE, pp. 1 - 4, 09/2010. Abstract
Chae, J., and G. C. Temes, "Comparator-based buffer with resistive error correction", Electronics Letters, vol. 46, issue 17, pp. 1188 - 1190 , 08/2010. Abstract
Shen, W., T. Wang, and G. C. Temes, "Low Distortion ΔΣ Modulator Employing modified charge-pump based switched-capacitor integrator", 2010 53rd IEEE International Midwest Symposium on Circuits and Systems (MWSCAS), Seattle, WA, IEEE, pp. 901 - 904, 08/2010. Abstract