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AD5420 REFOUT voltage

Question asked by PDES on Feb 21, 2012
Latest reply on Feb 21, 2012 by MCollins

Hi,

 

I would to use a precise external reference for the AD5420 reference input, and the internal voltage reference, provided on the REFOUT pin, as power supply for a low power OPAMP.

 

Is it possible to use the internal voltage reference, provided on the REFOUT pin, as supply for an external device even selecting an external voltage reference?

The DVccSelect pin acts as turn-off command for the internal reference source or it acts only as selector between internal or external reference source?

 

 

Thanks

Pasquale

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