ChrisEGroup@rocklizard.org wrote:
> * I made an error on the schematic. The gain is 100x. I am using
> 10K/100 Ohm resistors in each OpAmp voltage divider.

That's a lot for a single stage.  It will be difficult to get the resistors
matched well and get good common mode rejection.

> * The OpAmp inputs range from 0V TO 50 mV

This sounds like your current sense resistor is on the return leg with one
side ground.  If so, why do you need a differential amplifier in the first
place?


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