Active low-pass filter design
Source: InternetPublisher:mG4k0t6 Keywords: low-pass filter Updated: 2026/02/24
This is a collection of inverting and non-inverting active low-pass filter circuits. I have included first-order, second-order, third-order, fourth-order, and sixth-order filter circuits.
You can change the component value ratios shown to achieve any cutoff frequency you might need. No operational amplifier is specified for this circuit. These circuits are used to select the resistors and capacitors needed for a specific frequency inflection point and roll-off slope.
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