Data converters are the interface between the real analog world and the digital realm. They are so ubiquitous that on any given day every person in the developed world will likely utilize a data converter in one form or another. The insatiable need for higher resolution A/D converters (ADCs) at higher sample rates has made digital assistance a necessity. In this talk, we will discuss some of the common architectures and advanced calibration techniques for high-speed and high-resolution ADCs. These include techniques to correct for non-linearity, settling, kick-back, and memory errors. The talk will discuss the advantages and limitations of the different approaches, practical considerations and some state-of-the-art examples.
Ahmed M. A. Ali received the B.Sc. and M.Sc. degrees, with distinction and highest honor in electrical engineering from Ain Shams University, Cairo, Egypt, and the Ph.D. degree in electrical engineering from the University of Pennsylvania, Philadelphia. He is currently a Fellow at Analog Devices, where he has led the design and development of several industry and world firsts in the high-speed data converter field. His past industrial experience include Texas Instruments, Anacad/Mentor Graphics, and Siemens AG. He was an Adjunct Assistant Professor at the University of Pennsylvania from 2001 to 2007 and is an IEEE SSCS Distinguished Lecturer. He currently serves on the ISSCC Data Converter sub-committee and as an Associate Editor of the IEEE Transactions on Circuits and Systems I: Regular Papers. He is the author of the book: "High Speed Data Converters", published by the Institution of Engineering & Technology (IET) in 2016. He is the principal author of more than 30 papers and holds 50 patents. His research interests include analog IC design, high linearity sampling, digitally assisted converters, and signal processing. Dr. Ali received the S.J. Stein award from the University of Pennsylvania. He is also the recipient of the George Stephenson Foundation award, the Catalyst Foundation fellowship award, the University of Pennsylvania fellowship, and several industry and academic excellence awards.