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AD5535 output saturated to V-?

Question asked by amazinjon on Nov 29, 2016
Latest reply on Dec 7, 2016 by msamera

I have multiple AD5535s, recently I noticed the output of one is not functioning correctly. At zero code voltage all 32 outputs are at the same voltage as V- (-4.95v). When the output is requested to increase it appears as though it is in a constant current mode because the voltage is less than requested. I have inspected and verified all voltage rails on board, has my chip failed or is there something additional I should check? Thanks.

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