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AD5260/5262 Vlogic power supply

Question asked by Hirossan on Dec 15, 2016
Latest reply on Feb 22, 2017 by Hirossan

Hi all.

I have a question about Vlogic power supply.
Question : Does VL need to be always less than VDD?

Our customer are using VDD=5V, VL=5V nomaly. but sometime VL > VDD.


In D/S of AD5260 ”ABSOLUTE MAXIMUM RATINGS”

     VL to GND   0 V to +7 V

Since there is no correlation between VDD and VL, I understand that I have no problem.

However, despite similar absolute maximum ratings, the AD5263 has the following limitations.

"The logic supply voltage should always be less than or equal to VDD."


Is there any limitations on the AD5260 / AD5262?  There is no similar description in D/S.


Best regards
Hiroshi

 

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