Home | Tools | Multi-feedback low pass filter calculator Multi-feedback low pass filter calculator Passband Gain V / V dB Capacitance (C): mF µF nF pF fF Cutoff Frequency: Hz kHz MHz Q factor (dimensionless) Output amplitude (Vpp) Calculate R1 — R2 — R3 — C1 — C2 — C3 — Theory of Multi-feedback filter