AnsweredAssumed Answered

AD7173-8 connections for internal reference

Question asked by naholten on Dec 4, 2014
Latest reply on Dec 8, 2014 by jtee

Hello,

 

I am designing with a AD7173-8 and I want to use the internal reference.

I have decoupled the REFOUT pin with a 100n cap as described.

 

The data sheet does not say anything about the REF- and REF+ pins when using internal reference.

Should the REF- be connected to GND?

And should the REF+ be left floating?

 

In addition I intend to use the internal oscillator so I will leave XTAL1+XTAL2 floating. Hope this is ok also.

 

I attached my preliminary schematic for the AD7173-8.

 

Comments are appreciated.

 

Thank you,

Nils

Attachments

Outcomes