Home | Tools | Sallen-Key band pass filter calculator Sallen-Key band pass filter calculator Passband Gain V / V dB Capacitance (C): mF µF nF pF fF Center Frequency: Hz kHz MHz Q factor (dimensionless) Output amplitude (Vpp) Calculate C1 — C2 — R1 — R2 — R3 — Rf — Rg — Theory of Sallen-Key Filter