Title :
Strays-insensitive active switched-capacitor biquad
Author_Institution :
University of Illinois, Department of Electrical Engineering & Coordinated Science Laboratory, Urbana, USA
Abstract :
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.
Keywords :
active filters; integrating circuits; switched filters; filter; inverting backward Euler discrete integrator; noninverting forward Euler integrator; parasitic capacitances; switched capacitor active biquad; transfer functions; two integrator loop technology;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19800337
