Site Logo

Op-amp Circuit 1

Basic low-pass feedback

Use the sliders to change circuit values and view result in the plot below. The button switches the circuit input.

Version 3, December 2014

C 10nF R 1kΩ in non-inverting Circuit 1
100Ω1MΩ
10pF220nF
90 80 70 60 50 40 30 20 10 gain dB 1 10 100 1k 10k 100k frequency Hz non-inverting inverting 2-stage non 2-stage inv

How it works

For the non-inverting op amp circuit shown: Gain (dB) = 20.log10 [ 1 + ( XC / R )] and XC = 1 / 2πfC.

More circuits