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AD5724, burn out and exposed paddle

Question asked by usaghi on Mar 22, 2013
Latest reply on Mar 22, 2013 by usaghi



Unfortunately we had burned out AD5724 when evaluating, then checked what was wrong and knew exposed paddle was connected to 0V despite it should be connected to AVss as described in datasheet.

In order to assess it is true reason of the burning out, sorry to ask this, could you please let us know,

What could occur can you predict when connecting exposed paddle to 0V, even though applying +-15V to Analog Supply ?

Does it result to, immediately burning ? or it works but gradually broken ? or it works but functioning incompletely ?

Your outlook would be greatly appreciated and will contribute to our studies to this issue.


Best Regards,