I am trying to measure the current going to a 3 W DC motor. The motor draws less than 100 mA, what would be the best op-amp circuit to use? Or what would be the best solution to tackle this problem?
Instead of an op amp, I would use an InAmp. And in the past five years, we have made specialized
In Amps for motion control. Take a look at the AD8218.
Thanks for response, I checked into the AD8218 and it would be applicable, however it seems to be only circuit board mountable. Is there another version, or type of in-amp, that is larger, that I could connect to a breadboard?
With hundreds of millions of tablets, cell phones, etc made every year, the trend has been to smaller
and smaller packages, so most parts released in the past ten years are surface mount.
Some people use a small adapter board to convert different types of SMDs to DIPs, for example:
SOIC to DIP Adapter 8-Pin - BOB-00494 - SparkFun Electronics
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