AD732x (21/22/23/24/27/28/29) Requires Schottky Diodes

Discussion created by caugusta Employee on Mar 16, 2018

Noted in the datasheets that ADI recommends the use of Schottky Diodes in series with the Vdd and Vss supplies (AD7322 datasheet shown below).

We have found that these diodes are required for robust operation as there have been instances without the diodes where devices have been damaged.


For single supply operation with Vss = GND, only the Vdd series diode is required.  

Noted also in this thread: