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Stray free switched capacitor loop biquad that realizes different generic transfer functions

Authors
Journal
Journal of the Franklin Institute
0016-0032
Publisher
Elsevier
Publication Date
Volume
326
Issue
2
Identifiers
DOI: 10.1016/0016-0032(89)90074-4

Abstract

Abstract A switched capacitor biquadratic filter circuit capable of realizing stable biquadratic Z-domain transfer functions is introduced. The biquad is parasitic free and uses two op.amps. The circuits are arranged in such a way that similarly switched capacitors share a common switch. Design examples are given to illustrate the theory.

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