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Show transcribed image text Recall that the instrumentation amplifier is a useful alternative to the simpler differential amplifier. This is because the voltage followers at the voltage inputs provide high input resistance to prevent loading effects. With this in mind, find an expression for v0 in terms of the inputs v1 and v2. The above circuit is nice, but recall that we can also add in a few resistors to the first stage for an additional gain factor. This also allows us to eliminate any common-mode gain. Derive the new relationship for r0 in terms of v1 and v2.