IEEE SSCS Oregon Chapter February Meeting and Seminar (Hybrid)
IEEE SSCS Oregon Chapter February Meeting and Seminar
Join us for a talk from SSCS Distinguished Lecturer Prof. Shanthi Pavan from IIT Madras on Tuesday, February 25th, 2025. The seminar will be held from 9:00am to 10:00am (PST) via a Hybrid format. Please register for the meeting link and information.
Topic:
Continuous-Time Pipelined Analog-to-Digital Converters - Where Filtering Meets Analog-to-Digital Conversion
Abstract:
If someone told you that the power, noise, distortion, and area of a mixed-signal block could be reduced simultaneously, you'd probably think this was a lie. It turns out that it is indeed possible sometimes - and this talk will present an example called the continuous-time pipeline (CTP) ADC. The CTP is an emerging technique that combines filtering with analog-to-digital conversion. Like a continuous-time delta-sigma modulator (CTDSM), a CTP has a "nice" input impedance that is easy to drive and has inherent anti-aliasing. However, unlike a CTDSM, a CTP does not require a high-speed feedback loop to be closed. As a result, it can achieve significantly higher bandwidth (like a Nyquist ADC). After discussing the operating principles behind the CTP, we describe the fundamental benefits of the CTP over a conventional signal chain that incorporates an anti-alias filter and a Nyquist-rate converter. We will then show design details and measurement results from a 12-bit ENOB, 100MHz 800MS/s CTP designed in a 65nm CMOS process.
Speaker Biography:
Shanthi Pavan received the B.Tech. degree in electronics and communication engineering from IIT Madras, Chennai, India, in 1995, and the M.S. and D.Sc. degrees from Columbia University, New York, NY, USA, in 1997 and 1999, respectively. From 1997 to 2000, he was with Texas Instruments, Warren, NJ, USA, where he worked on high-speed analog filters and data converters. From 2000 to June 2002, he worked on microwave ICs for data communication at Bigbear Networks, Sunnyvale, CA, USA. Since July 2002, he has been with IIT Madras, where he is currently the NT Alexander Institute Chair Professor of Electrical Engineering. Prof. Pavan is the author of Understanding Delta-Sigma Data Converters (second edition, with Richard Schreier and Gabor Temes), which received the Wiley-IEEE Press Professional Book Award for the year 2020. His research interests are in the areas of high-speed analog circuit design and signal processing. Dr. Pavan is a fellow of the Indian National Academy of Engineering, and the Indian National Science Academy, and the recipient of several awards, including the IEEE Circuits and Systems Society Darlington Best Paper Award in 2009. He has served as the Editor-in-Chief of the IEEE Transactions on Circuits and Systems—I: Regular Papers and on the Technical Program Committee of the International Solid-State Circuits Conference (ISSCC). He has served as a Distinguished Lecturer of the IEEE Circuits and Systems Society and is a two-term Distinguished Lecturer of the Solid-State Circuits Society. He currently serves as the Vice-President of Publications of the IEEE Solid-State Circuits Society and on the editorial board of the IEEE Journal of Solid-State Circuits. He is an IEEE Fellow.
Date and Time
Location
Hosts
Registration
- Date: 25 Feb 2025
- Time: 09:00 AM to 10:00 AM
- All times are (GMT-08:00) US/Pacific
-
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- 2111 NE 25th Ave
- Hillsboro, Oregon
- United States 97124
- Building: Jones Farm Conference Center
- Room Number: JFCC-119
- Starts 07 February 2025 12:00 AM
- Ends 25 February 2025 12:00 AM
- All times are (GMT-08:00) US/Pacific
- No Admission Charge
Speakers
Prof. Shanthi Pavan of IIT Madras
Continuous-Time Pipelined Analog-to-Digital Converters - Where Filtering Meets Analog-to-Digital Conversion
If someone told you that the power, noise, distortion, and area of a mixed-signal block could be reduced simultaneously, you'd probably think this was a lie. It turns out that it is indeed possible sometimes - and this talk will present an example called the continuous-time pipeline (CTP) ADC. The CTP is an emerging technique that combines filtering with analog-to-digital conversion. Like a continuous-time delta-sigma modulator (CTDSM), a CTP has a "nice" input impedance that is easy to drive and has inherent anti-aliasing. However, unlike a CTDSM, a CTP does not require a high-speed feedback loop to be closed. As a result, it can achieve significantly higher bandwidth (like a Nyquist ADC). After discussing the operating principles behind the CTP, we describe the fundamental benefits of the CTP over a conventional signal chain that incorporates an anti-alias filter and a Nyquist-rate converter. We will then show design details and measurement results from a 12-bit ENOB, 100MHz 800MS/s CTP designed in a 65nm CMOS process.
Biography:
Shanthi Pavan received the B.Tech. degree in electronics and communication engineering from IIT Madras, Chennai, India, in 1995, and the M.S. and D.Sc. degrees from Columbia University, New York, NY, USA, in 1997 and 1999, respectively. From 1997 to 2000, he was with Texas Instruments, Warren, NJ, USA, where he worked on high-speed analog filters and data converters. From 2000 to June 2002, he worked on microwave ICs for data communication at Bigbear Networks, Sunnyvale, CA, USA. Since July 2002, he has been with IIT Madras, where he is currently the NT Alexander Institute Chair Professor of Electrical Engineering. Prof.Pavan is the author of Understanding Delta-Sigma Data Converters (second edition, with Richard Schreier and Gabor Temes), which received the Wiley-IEEE Press Professional Book Award for the year 2020. His research interests are in the areas of high-speed analog circuit design and signal processing. Dr. Pavan is a fellow of the Indian National Academy of Engineering, and the Indian National Science Academy, and the recipient of several awards, including the IEEE Circuits and Systems Society Darlington Best Paper Award in 2009. He has served as the Editor-in-Chief of the IEEE Transactions on Circuits and Systems—I: Regular Papers and on the Technical Program Committee of the International Solid-State Circuits Conference (ISSCC). He has served as a Distinguished Lecturer of the IEEE Circuits and Systems Society and is a two-term Distinguished Lecturer of the Solid-State Circuits Society. He currently serves as the Vice-President of Publications of the IEEE Solid-State Circuits Society and on the editorial board of the IEEE Journal of Solid-State Circuits. He is an IEEE Fellow.
Agenda
9:00am - 10:00am: Professional/Career Seminar