Sallen-Key Low-Pass Unity-Gain Filter Response

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This Demonstration shows how various characteristics of a unity-gain low-pass Sallen–Key filter depends on its damping factor . The characteristics considered are: transfer function poles, frequency response, and unit step response. The filter's frequency response was scaled (normalized) to have . Frequency and magnitude denormalization are necessary in order to obtain practical values of circuit components.

Contributed by: Ben Rodanski (August 2011)
Open content licensed under CC BY-NC-SA



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