AnsweredAssumed Answered

AD7988 SDO Voltage Level

Question asked by mosim on Feb 4, 2016
Latest reply on Feb 5, 2016 by mosim

I develop an application where I use a AD7988-5 with an interface to the processor with 5V signals.

 

Ref=5V

VDD=2.5V

VIO=5V (For the 5V interface)

 

But now I measure:

that the SDO high level is only at 2.5V.

 

 

In the Datasheet is written:

 

DIGITAL OUTPUTS

 

VOL Max.

=

0.4 V

 

VOH Min.

=

VIO − 0.3 V

 

 

So the SDO level should be between 0.4V and 4.7V or do I understand something wrong?

 

Thanks for any help

Werner

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