Op-amp relocation: A topological active network synthesis (original) (raw)

IEEE Transactions on Circuits and Systems, 1986

Abstract

Methods are presented for generating ideal op-amp circuits by relocating the op-amp in a given realization. Formulas are developed for determining, by inspection, the minimum number of realizations which have identical network equations or which have the same characteristic equation. It is shown that the basic 3-op-amp Mikhael-Bhattacharyya RC active filter has at least 95 other possible 3-op-amp realizations, all

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