This application note describes the most common operational amplifier stability compensation methods for capacitive loading applied to TS507.
This document explains operational amplifier stability issues, specifically focusing on the TS507 high precision rail-to-rail amplifier. It details how capacitive loads impact stability and introduces three main compensation methods: out-of-the-loop, in-the-loop, and snubber network techniques. The text provides theoretical overviews and specific application data for the TS507 to help designers avoid oscillations.
| Gain bandwidth product | 1.9 MHz |
|---|---|
| Input offset voltage | very low |
| Package types | SOT23-5 and SO-8 |
A capacitive load adds a pole to the loop gain, which decreases stability and can cause oscillations.
The document tests the TS507 with a capacitive load of 550 pF in a voltage follower configuration.
The TS507 has a gain bandwidth product of 1.9 MHz.
The compensation resistor should be very small compared to the resistive load, with a maximum ratio of 1%.