1st-Order Active Low-Pass Filter

Design from specification

Inverting 1st-order low-pass: f_c = 1/(2π·R2·C), DC gain = −R2/R1. Set a cutoff and gain; R1, R2 are computed and rounded to the chosen E-series.

Cutoff f_c [Hz]: Gain at f=0, |K| (inverting): C [F] (optional): R series: C series:

R1 [Ω]: R2 [Ω]: C [F]:

Components: R1 = — R2 = — C = —

Cutoff f_c = — Hz DC gain = —

Transfer function:
H(s) = —

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