TEXAS A&M UNIVERSITYDepartment of Electrical and Computer Engineering

College Sta tion, Texas 77843-3128TEL (409) 845-7498 FAX (409) 845-7161

sanchez@ece. tamu.eduht tp: / /amesp02. tamu.edu

S E M I N A R

Room 227A ZEC

Wednesday, September 27, 2006 3:00 p.m. - 3:50 p.m.

Design Techniques for Low Noise and High Speed A/D Converters

by

Amit Kumar GuptaDept. of Electrical and Computer Engineering

College Station, TX 77843-3128

Abstract: Analog-to-digital (A/D) conversion is a process that bridges the real analog world to digital signal processing. The resolution and sampling rate of an A/D converter vary depending on the application. Recently, there has been a growing demand for broadband (>1 MHz), high-resolution (>14bits) A/D converters. Applications that demand such converters include asymmetric digital subscriber line (ADSL) modems, cellular systems, high accuracy instrumentation, and military SONAR. There is also an increasing trend to integrate the input driver for such A/D converters on the same chip as ADC. In this presentation we look at some design techniques for such high resolution and high sampling rate A/D converters and also for drivers for these ADC’s.

Amit Kumar Gupta received his B.E (Hons.) Electrical and Electronics degree from Birla Institute of Technology and Science, Pilani, India. He is currently working towards M.S. degree in Analog & Mixed-signal Center, Texas A&M University. He worked at Texas Instruments, India as a design engineer from 2002-2004, where he was involved in the design of pipelined A/D converters. He worked as a Co-op designer with

Texas Instruments, Dallas from June to Dec, 2005 on design of broadband sigma delta ADC’s. His main research interests include design of continuous time delta sigma A/D converters.