Hi Shashank, [quote userid="60779" url="~/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1501069/mspm0g3507-q1-using-2x-opa-to-get-differential-voltage---r2-and-r1-selection-and-placement"]Q: Do they have to place the R2 and R1 externally? We see that there is a GAIN stage in the OPA block from the TRM. Is this the configuration to be done that represents the R2/R1 in the above snapshot?[/quote] Yes, it does. See the configuration showed in the TRM: TRM G Series (Rev. B) Then you can configure OPA1.RTAP to decide the signal gain. [quote userid="60779" url="~/support/microcontrollers/arm-based-microcontrollers-group/arm-based-microcontrollers/f/arm-based-microcontrollers-forum/1501069/mspm0g3507-q1-using-2x-opa-to-get-differential-voltage---r2-and-r1-selection-and-placement"]Q: Is there a sample example that has the OPA0 and OPA1 in difference amplifier mode that I can point my customer to?[/quote] Unfortunately no, while I think the configuration page I showed could be a great reference for customer to configure the OPAs. B.R. Sal
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