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AD7328 substrate

Question asked by Terumasa on Jun 1, 2016
Latest reply on Jul 5, 2016 by CVM

Hello

 

Which N-well or P-well  is the substrate of AD7328 ?

 

I can read that there is not the power sequence in AD7328 from aboslute maximum rateing.

But, I think if the substrate is a n-well,  the first supply must be the most negative ,

and  If the substrate is p-well, the substrate is connected to positive.

 

Our customer uses AD7328 at  +-15 supply voltage but  VSS (-15V)  is powered after  30ms of VDD (15V).

Could you give me your advice about above to confirm if there is a problem about my customer sequence ?

 

Regards,

Terumasa

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