Electrical & Electronics
Active Filter Calculator
Design low-pass, high-pass and band-pass filters with component selection and response plots.
01
Your inputs
02
Your results
- Pole / center frequency
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- Quality factor
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- Voltage gain
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- Cutoff frequency
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- Voltage gain
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- Phase shift
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- fL · −3 dB
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- fH · −3 dB
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- Resonance bandwidth
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Formula
—How to use this tool
- Filter topology: Sallen–Key / MFB.
- Design components: f0, Q, K, R, C.
- Formula · Print results.