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AD5445 max voltage

Question asked by rgray on Jun 3, 2016
Latest reply on Jun 9, 2016 by msamera

What is the max transient voltage/current allowed on Rf during power up.  Iout1 is driving into the non-inverting pin of the op amp that is driving it's output back into the Rf pin through a 49.9 ohm resistor.  The op amp is powered from ±15.  During power up it might be possible to get 14-15 volts on it's output.  the Absolute max table shows ±12 as the max.  I'm wondering if it changes because of the 49.9 ohms or if there is a time dependence on it.

Ref input is 10V, VDD is 3.3v, and digital inputs are 3.3v signals.

Thanks,

-John

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