We use an LMV341IDCKR op amp as part of our design for voltage sensing. The uniploar supply voltage is 5V. The input voltage can be expected to vary between 0 and 80V and there is a resistor dividet to step it down. We have sever of these modules(1000s) running in the field and have recently had a unit returned in which this particular IC failed. Is there any particular reason that could cause this failure?