How To Calculate Transfer Function Of Active Low Pass Filter

Calculating the transfer function of an active low pass filter is crucial in signal processing and electronics. It helps understand the filter’s behavior and design…

1. Enter the component values (R1, R2, C) and the frequency (f).
2. Click ‘Calculate’.
3. View the results and chart below.

The transfer function (H(s)) of an active low pass filter is given by:

H(s) = -R2 / (R1 + R2) * (1 / (s * C * R1 * R2))

Comparison of Filter Types

Filter Type	Transfer Function
Low Pass	H(s) = -R2 / (R1 + R2) * (1 / (s * C * R1 * R2))

• Use high-quality components for accurate results.
• Consider the filter’s stability when designing.

What is the difference between a passive and active low pass filter?

…

Learn more about the history of low pass filters

Wikipedia: Low Pass Filter