Other Parts Discussed in Thread: INA381
Hi team,
A customer wants to use the input of OPA381 for overload detection and would like to delay it with an RC filter (switch-on pulses etc). For that they would like to know how much current Vout can drive. They would like to avoid using a voltage follower in between.
Of course you can also filter at the input (page 23 data sheet 8.1.4) - I suppose by diverting the peaks above the shunt with a high pass - but what resistance do you use for the RC element? Do you have a formula for that?
Thanks,
Franz