Is there any one current sensing IC better than all the rest? My plan is to use a 0.01 ohm sense resistor and a CS IC with a gain of 100. That way 1 amp max will be 1 volt out of the chip.

 

A cheap IA may be the best way to go. Eg. as used for microphone amps such as INA217, INA163. If you scope out the performance you need a bit more, or the circuit limitations (eg. supply rail, bipolar output, noise level, frequency response).

Ciao, Tim

 

I have a project that will need a instrumentation amplifier across a low value resistor. The advantage is no reference points such as ground or Vcc need be considered.

I know this in theory, but have yet to work out the fine points.

 

Jameco sells a hall effect device with output proportional to the magnetic field . If it sensitive enough, this could be used to sense current. this would isolate the current sense from the measuring circuit.