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Dive into the research topics where Nagarajan Viswanathan is active.

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Featured researches published by Nagarajan Viswanathan.


international conference on vlsi design | 2015

DFT Technique for Quick Characterization of Flash Offset in Pipeline ADCs

Pradeep Nair; Nagarajan Viswanathan

This paper proposes a novel DFT block and associated method for characterizing the offsets of the coarse flash used in a pipelined ADC. In non-SHA architecture, due to the presence of dynamic offset, measuring flash offsets across input frequency becomes important. By adding special data output modes, the proposed DFT technique allows speedy characterization of flash offset, across PVT, using the standard single-tone test and measurement setup for the ADCs.


Archive | 2003

Low noise output buffer

Visvesvaraya A. Pentakota; Nagarajan Viswanathan


Archive | 2013

TRANSMIT SIGNAL CANCELATION APPARATUS AND METHODS

Nagarajan Viswanathan; Visvesvaraya A. Pentakota; Robert C. Keller; Thomas R. Neu; Francesco Dantoni


Archive | 2012

Multi-tap iq imbalance estimation and correction circuit and method

Nagarajan Viswanathan


Archive | 2007

SIGNAL-TO-NOISE RATIO WHEN USING FEWER BITS THAN THE NUMBER OF OUTPUT BITS OF AN ANALOG TO DIGITAL CONVERTER

Nagarajan Viswanathan; Jagannathan Venkataraman; Ganesh Kiran


Archive | 2015

OPTICAL FIBER DEFECT DETECTION

Nagarajan Viswanathan


Archive | 2009

Spurious Free Dynamic Range Of An Analog To Digital Converter

Nagarajan Viswanathan; Nitin Agarwal; Jagannathan Venkataraman; Visvesvaraya A. Pentakota; Abhaya Kumar


Archive | 2006

Reducing Pin Count When the Digital Output is to be Provided in Differential or Single-ended Form

Nitin Agarwal; Eduardo Bartolome; Sandeep Oswal; Visvesvaraya A. Pentakota; Jagannathan Venkataraman; Nagarajan Viswanathan; Vinod Paliakara


Archive | 2017

METHODS AND APPARATUS TO REDUCE NON-LINEARITY IN ANALOG TO DIGITAL CONVERTERS

Jawaharlal Tangudu; Sthanunathan Ramakrishnan; Nagarajan Viswanathan; Pooja Sundar


Archive | 2016

GAIN AND OFFSET CORRECTION IN AN INTERPOLATION ADC

Srinivas Kumar Reddy Naru; Nagarajan Viswanathan; Visvesvaraya A. Pentakota

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