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Strays-insensitive active switched-capacitor biquad

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1 Author(s)
El-Masry, E.I. ; University of Illinois, Department of Electrical Engineering & Coordinated Science Laboratory, Urbana, USA

A general active switched-capacitor biquad is introduced. The circuit is immune to the various parasitic capacitances and is based on the two-integrator-loop topology. It implements the noninverting forward-Euler and the inverting backward-Euler discrete integrators. The circuit is the most general of its kind and all published biquads and many others can be generated from it.

Published in:

Electronics Letters  (Volume:16 ,  Issue: 12 )