Hi,
we are using INA3221 for voltage monitoring. Input is protected with 24V zener-diode. Current is limited by resistors in the level of mA.
I would like to know what happens if there is no power in VDD, but there might be 24V voltage at the input. Our schematics below, there are +IN and -IN connected in our application.
What kind of ESD-prtotection there is, normal diodes which might leak power to VDD?
Rgds,
-Kari-