Negative Voltage reference

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asp87

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Hi,

I need to generate a negative voltage reference (-5V) for DAC IC. Tried implementing this circuit but I get -2.57V instead of -5V from the output pin of Opamp w.r.t. COM.

Here is my wiring diagram. Can you please point out my mistakes?

 

You are using a different reference (LT1416) then the ADR127 shown in the schematic. I'm not sure they both act the same in that circuit. You might double check all the connections.
 

crutschow said:
You are using a different reference (LT1416) then the ADR127 shown in the schematic. I'm not sure they both act the same in that circuit. You might double check all the connections.
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Hi, thanks for the reply. I rewired the circuit and it worked.
 

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