Low Pass Filter

A second-order low-pass Butterworth filter with an op amp. This topology is known as the Sallen-Key topology. Component values have been normalized to give the 3 dB frequency of 1 rad/s and the pass-band gain of 3.5 V/V.

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Demos

Joined October 17, 2016
Design added Monday, November 14, 2016 | 4:41 am PST