Sallen-Key filterWhat is a Sallen-Key filter? It’s a handy little second-order active filter for op-amps, invented by some guys called Sallen and Key way back in ’55. Really.

For the detailed and rather painful, full, explanation, check out Wikipedia “The Truth On The Net As We Know It, As You Type It.”

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About ohmart

A cartoonist, tinkerer, electronic-er, designer. And left-handed. Right on.

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