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Active Filter Calculator Home›Electronics Calculators›Filters›Active Filter Calculator This calculator requires JavaScript. Sallen-Key active filter design. Sallen-Key (unity gain) 2nd Order Active No inductors needed Low Pass High Pass Band Pass… read more

Butterworth Filter Calculator Home›Electronics Calculators›Filters›Butterworth Filter Calculator This calculator requires JavaScript. Butterworth: maximally-flat magnitude response. Maximally Flat Passband −20n dB/decade roll-off |H(jω)|² = 1/(1+(ω/ωc)2n) 1kHz 2nd Order 10kHz 3rd Order… read more

Crossover Calculator Home›Electronics Calculators›Filters›Crossover Calculator This calculator requires JavaScript. 1st Order: −6 dB/oct 2nd Order: −12 dB/oct Butterworth / Linkwitz-Riley 2-Way 3-Way 3kHz 8Ω (2-way) 2.5kHz 4Ω 500/5k 8Ω (3-way)… read more

Band Stop Filter Calculator Home›Electronics Calculators›Filters›Band Stop Filter Calculator This calculator requires JavaScript. fc = √(fL × fH) | BW = fH − fL | Q = fc/BW fc =… read more

Band Pass Filter Calculator Home›Electronics Calculators›Filters›Band Pass Filter Calculator This calculator requires JavaScript. fc = √(fL × fH) | BW = fH − fL | Q = fc/BW fc =… read more

High Pass Filter Calculator Home›Electronics Calculators›Filters›High Pass Filter Calculator This calculator requires JavaScript. High Pass: passes f > fc, attenuates f < fc Passes high frequencies Attenuates low frequencies −3… read more

Low Pass Filter Calculator Home›Electronics Calculators›Filters›Low Pass Filter Calculator This calculator requires JavaScript. Low Pass: passes f < fc, attenuates f > fc Passes low frequencies Attenuates high frequencies −3… read more

LC Filter Calculator Home›Electronics Calculators›Filters›LC Filter Calculator This calculator requires JavaScript. fc = 1/(2π√LC) fc = 1/(2π√LC) Low Pass High Pass 100µH + 100nF 10mH + 1µF 250µH + 100pF… read more

RL Filter Calculator Home›Electronics Calculators›Filters›RL Filter Calculator This calculator requires JavaScript. fc = R/(2πL) fc = R/(2πL) Low Pass High Pass 100Ω + 50mH 50Ω + 10mH 1kΩ + 100mH… read more

Filter Cutoff Frequency Calculator Home›Electronics Calculators›Filters›Filter Cutoff Frequency Calculator This calculator requires JavaScript. fc = 1/(2πRC) or fc = 1/(2π√LC) fc = 1/(2πRC) fc = R/(2πL) fc = 1/(2π√LC) RC… read more