Prof. Bibhu Datta Sahoo
Associate Professor
Electronics and Electrical Communication Engineering
Indian Institute of Technology, Kharagpur
Data Converter Design in Nanometer CMOS-Recent Trends


For the last three decades Moore’s law has provided the IC industry with smaller, faster, and cheaper transistors, facilitating integration of an increasing number of digital functions, thus propelling the growth of the semiconductor industry. However, this scaling trend poses greater challenges for analog and mixed-signal circuits that interface with real-world signals. The analogto-digital interface is the performance bottleneck in most mixed-signal or communication systems. We have reached an inflection point in the design of these interfaces: the “analog” designer must now know much more than analog design. “Calibration” techniques have been around for a decade or two, where we have begun to incorporate a heavy content of digital signal processing to undo the analog imperfections. This has led to a new generation of analog designers who must be as innovative in the analog domain as in the digital signal processing domain. This talk will discuss various data converter design techniques to not only meet and exceed the requirements of existing communication standards but also of the upcoming standards like 5G.


Bibhu Datta Sahoo received the B.Tech. degree in electrical engineering from the Indian Institute of Technology, Kharagpur, India, in 1998, the M.S.E.E. degree from the University of Minnesota, Minneapolis, MN, USA, in 2000, and the Ph.D.E.E. Degree from the University of California, Los Angeles in 2009. From 2000 to 2006, he was with DSP Microelectronics Group, Broadcom Corporation, Irvine, CA, where he designed analog and digital integrated circuits for signal processing applications. From December 2008 to February 2010, he was with Maxlinear Inc., Carlsbad, CA, where he was involved in designing integrated circuits for CMOS TV tuners. From March 2010 to November 2010, he was a Post-Doctoral Researcher with the University of California, Los Angeles. From December 2010 to December 2011, he was an Assistant Professor with the Department of Electronics and Electrical Communication Engineering, Indian Institute of Technology, Kharagpur, India. From January 2012 to May 2017, he was an Associate Professor with the Department of Electronics and Communication Engineering, Amrita University, Amritapuri, India. From January 2016 to May 2017 he was at University of Illinois at UrbanaChampaign on a sabbatical. Since August 2017 he has been Associate Professor at IIT Kharagpur. His research interests include analog and mixed signal circuit design, data converters, and signal processing. He received the 2008 Analog Devices Outstanding Student Designer Award and was the corecipient of the 2013 CICC Best Paper Award. He was the Associate Editor of IEEE Transactions on Circuits and Systems-II from Aug. 2014 to Dec. 2015.