What is the absolute maximum input ratings for AD835?
I am especially interested handling of input voltage without supply!
The data-sheet only give usable(before clipping) input range, not what the chip can handle without getting damaged.
Even if the data sheet doesn't say, a good rule of thumb on all ICs is to assume there are
reverse biased diodes to the supply pins, so with the power off, the input voltage should
be no more than +/-0.3V.
The AD835 is protected by ESD diodes. I don't have specific numbers for you but ESD diode ratings are process and specification dependent. They are relatively high, in the range of 10mA or so as I once discovered for another process.
As a result of your question, I looking into this to see if I can find an answer and add to the data sheet.
Retrieving data ...