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AD590JH troubles wrong values

Question asked by analogJunkie on Nov 28, 2013
Latest reply on Dec 9, 2013 by analogJunkie



i have troubles with some AD590JH.

2 or 3 of 1000 pieces makes troubles. ( wrong measurement-values

by factor 2, but linear ). Also the resitance is only 1.3kOhm from output-pin to the case.


I have initiated a Failure Analysis by ADI and

got document. But this component works

normaly at ADI and makes no troubles.


Now i get this component back for more analysis.

But what could i do now?


Maybe the risetime of VDD is not fast enough? or too slow?


Do you have some tips for me to check my circuit?