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electronics · analog · signal processing

Second-Order Butterworth Low-Pass Filter

유형 회로도표준 IEEE Std 315 / ANSI Y32.2엔진 schematex-circuit업데이트됨 2026. 9. 19.
Second-Order Butterworth Low-Pass Filter
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Designing a maximally flat two-pole low-pass filter for audio or sensor signal conditioning.

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01

Use equal source and load termination (1kΩ) for Butterworth response

02

Choose L=22.5mH and C=22.5nF for 10 kHz cutoff

When a simple, passive second-order low-pass filter is acceptable and no gain is required.

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