Filtering with Opamps

Overview

These pages allow for tailoring the bandwidth of an op amp. Using Excel for bode plots left me wanting slicker component tuning, and I've long been an SVG fan. I hope others find these useful, but those with older browsers may struggle. Calculators have been revised to scan the E12 series tidily. It may help to visualize the capacitance as a change to the frequency response (slope moving horizontally), though on the plots the change of gain (vertical) is more apparent.

Select a schematic

Revisions

Refactored switching and element functions, fixed slider reset.

Dual trace plots for inverting/non-inverting configurations; trace labels; schematic input switching; navigation more IE-friendly; plots more Safari-friendly; component values more legible.