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Basic Differential BiQuad Filter Circuit Diagram
Wednesday, 09. December 2009 by
wire
A biquad filter is a type of linear filter that implements a transfer function that is the ratio of two quadratic functions. It is available in low pass, high pass, bandpass, and notch versions. The highpass and notch versions are not recommended, because they require 4 opamps. Biquad filters are typically active and implemented with a single-amplifier biquad (SAB) or two-integrator-loop topology.
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