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Operational Amplifiers
The input impedance is ______ for the amplifier in the given circuit. The data sheet values are Zin = 3 MΩ, Zout = 80 Ω, and Aol = 250,000.
4.7 kΩ
22.7 kΩ
3 MΩ
68.6 kΩ
Correct Answer:
4.7 kΩ
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