I have three AD74413RBCPZ on a PCB. All three are configured as 4-20mA output DACs
For two of the parts, Refout is 4.99V and 4.98V. For the third one, it is 2.63V.
For the third part, the current output is beyond the specified tolerance.
Since the Refout is generated internally, there is nothing which can be checked other than measuring the Refout V.
The Refout is shorted with Refin with a 100nF decoupling capacitor.
What could be wrong? How can the Reference be corrected?
This problem is local to one PCB, others are working fine.
spelling mistake corrected
[edited by: JPD at 3:06 PM (GMT -5) on 12 Dec 2022]