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Determine the output resistance of differential amplifier with three op-amp. The op-amp used is 741c, with A=200000 and Ro. The output and difference of input voltages are 44 and 11.

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ago in Linear Integrated Circuits by (41.4k points)
Determine the output resistance of differential amplifier with three op-amp. The op-amp used is  741c, with A=200000 and Ro. The output and difference of input voltages are 44 and 11.

(a) 5.5mΩ

(b) 3.5mΩ

(c) 2.4mΩ

(d) 1.5mΩ

The question was posed to me by my mentor.

I am confused about this question from the Differential Amplifiers with Multiple Op-Amp in lesson Operational Amplifier Characteristics of Linear Integrated Circuits

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