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Showing papers by "Gordon W. Roberts published in 1987"


Journal ArticleDOI
TL;DR: In this article, the authors present SC circuits for realizing an arbitrary N th-order filter function using any number of op-amps, from 1 to N, at the cost of an increased number of clock phases.
Abstract: This paper presents SC circuits for realizing an arbitrary N th-order filter function using any number of op-amps, from 1 to N . The reduced op-amp. count is obtained at the cost of an increased number of clock phases. Low-noise and low-sensitivity structures are obtained by applying the recently proposed methods of Intermediate-Function Synthesis. An experimental prototype of a 5th-order low-pass filter example is used to verify the proposed multiplexing scheme.

12 citations