Hi Liping, There is ABS MAX rating for the device pins and as per this you can't operate the DUT in a condition where VOUT > AVDD. Please see the image below for your reference. However if VOUT operating range is only 0-10V, you can use a supply voltage AVDD >= 20V. This will not violate the ABS MAX rating of the device and short circuit protection will kick in to protect the DAC. Please let me know if this helps and for any further queries. Thanks, Sanjay
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