Turning power supply of OpAmp off.

Thread Starter

killerpiraat

Joined Feb 17, 2020
12
Hello,

I was wondering, is it possible to switch the power supply of an opamp on and off via a switch or output of a microcontroller? For example to save batterylife.
I heard something about latch up symptoms that occur when you apply a input signal when the power supply is turned off? Does this damage the opamp?
 

MrSoftware

Joined Oct 29, 2013
2,015
First what exactly do you want to do (do you have a schematic)? Second the datasheet for the OpAmps you are considering should tell you what their behavior is when power is removed.
 
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