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LTC4281 maximum voltage

Category: Datasheet/Specs
Product Number: LTC4281

I would like to use the LTC4281 in an application where the monitored power rail reaches 34 VDC.  This is below the absolute maximum rating for the device (45V) but is above the "input supply range" rating (33V max).  It would appear that the only downside of operating above 33V is that the rail voltage measurement would be above the full-scale range of the ADC (33.28 V).  Some questions:

1) is the current measurement aspect of the device still operational at this higher common mode voltage?

2) Are there any other downsides to operating at 34 VDC?