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What is the maximum operating supply voltage for AD8429?

Question asked by bnevins on Aug 14, 2015
Latest reply on Aug 17, 2015 by bnevins

I want confirmation  that it is OK to run AD8429 at +/-18V.  For safety,

I’ll probably put the supply at +/- 17.7V.

 

According to the data sheet page 1, the supply can be as high as +/-18V.  This is very attractive for my design.  This is reiterated on page 5, where the maximum power supply operating range is given as +/-18V.

 

What is confusing is that the Absolute maximum supply voltage is also +/-18V.

 

Usually, the Abs Max is somewhat higher than the operating supply voltage.

 

And there is the disclaimer:

 

“Exposure to absolute maximum rating conditions for extended periods may affect

Device reliability”

 

It used to be that the Abs Max rating was quite conservative on most IC’s.

 

Bryan

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