It follows that each of vI1 and vI2 is amplified by this factor, and the resulting amplified signals appear at the outputs of A1 and A2, respectively. The difference amplifier in the second stage operates on the difference signal
It follows that each of vI1 and vI2 is amplified bythis factor, and the resulting amplified signals appear at the outputs of A1 and A2, respectively.The difference amplifier in the second stage operates on the difference signal