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Hello,
Quite a while back i used a Microchip product, cant remember the part number now but it is simply a chopper stabilized op amp. This allows DC operation and a much simpler circuit.
Calibration might also be a good idea although finding calibration standards that low may be difficult unless you rely on lengths of wire of known gauge, which might be good enough depending on application.
The MC chips are much cheaper too. Resolution should be at least down to 1mOhm.
Quite a while back i used a Microchip product, cant remember the part number now but it is simply a chopper stabilized op amp. This allows DC operation and a much simpler circuit.
Calibration might also be a good idea although finding calibration standards that low may be difficult unless you rely on lengths of wire of known gauge, which might be good enough depending on application.
The MC chips are much cheaper too. Resolution should be at least down to 1mOhm.
