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Gopal Sundar to present at MWSCAS 2013

winstead's picture
Submitted by winstead on Fri, 06/14/2013 - 02:17
LE/FT Lab member Gopalakrishnan Sundararajan's article has been accepted for presentation at the 2013 Midwest Symposium on Circuits and Systems in Columbus, Ohio this August. Now in its 56th year, MWSCAS is one of IEEE's longest running conferences. In spite of its name, the "Midwest Symposium" is actually an international conference often hosted outside the United States. Gopal's MWSCAS article concerns a new style of analog "Winner Take All" (WTA) circuit that offers superior mismatch immunity compared to previous designs. Process variation is an increasingly difficult problem for analog design, because analog circuits typically rely on symmetric relationships among matched devices. In a real manufacturing technology, there is variation in the device's threshold voltage, geometry and other parameters which makes perfect matching impossible. Gopal used Monte Carlo simulations in Cadence to test the mismatch performance of his new WTA, and found that it is about 1000 times less sensitive to variations than the standard CMOS WTA circuit.

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