My OPA695 amplifier's voltage

[letters109]

Good afternoon~thanks for taking time to read my question,I hope I came the right froum. Well,time is money so let's enter into the subject directly.My trouble is about "The voltage about OPA695 amplifier".(this is OPA695 I used)Let me describe my problems clearly while you can review my circuit.

Last days,I have printed a board after I made a circuit by using simulation software. However, The voltage which have tagged in the picture is different from the simulate value when I texted the board. In fact,the voltage of R9 two sides in the board just show 0.5V, and R8 shows 4.6v. I can’t understand why occurs such a question？ I have review carefully the PCB board,there aren’t any wrong. Can you help me solve it?

Your advice will be appreciated! I'll wait you reply in the forum.Thanks a lot!
wishes~

 

[Harald Kapp]

Make sure the pinout of the opamp is correct in your layout and the opamp is inserted in teh correct direction.
The datasheet shows the top view.

 

[Audioguru]

R8 and R9 are connected together on the schematic but since you measure different voltages on them then they are not connected together in your circuit.