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Calculating noise contribution of current sense resistor

Question asked by moshannon on Feb 28, 2016
Latest reply on Feb 29, 2016 by Matt.Duff

I have watched Matt Duff's excellent YouTube video on how to calculate the noise of an instrumentation amp circuit. He shows how to calculate the resistor noise and current noise for a resistor in series with each input to the in amp. I would like to know how to calculate the noise when the inputs are connected to opposite ends of a current sense resistor having resistance R. Can I treat that as if I am measuring a voltage at a point located in the middle of the resistor, with a resistance of 1/2 R in series with each input?

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