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LMV321A: Differential Current Sense Jump when battery is connected

Part Number: LMV321A


We're using the LMV321AIDBVR in a differential current sense application and simulating a connection to the battery with a very large capacitor bank.

When we connect, we see the output jump up to 1V then come back down to ~ 0V.

3V3_AUX is unpowered (0V) during this event

We're able ride through this ok in our system, but we're wondering if this could somehow damage the device.

Below is the schematic and scope shots of the behavior.  Thanks very much, Keith

This is a scope shot of IN+, followed by IN- relative to BAT-