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AD5781 : VRENF & VREFNS TO GND?

Question asked by AurelienR on May 3, 2017
Latest reply on May 4, 2017 by msamera

Dead engineer zone, 

 

I am working on the AD5781 and I have some questions regarding the connection of the pins N°16 & 17 (VREFNF & VREFNS) 

 

I need to use the DAC with a 0V to 5V range.

 

Can I put these pins to GND (pic.1) or do I need to use an op amp(pic.2)?

 

 

pic.1 :

 

pic.2

 

Thanks for the help,

 

Aurélien

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