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Determine the voltage gain for the circuit.

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+1 vote
in Linear Integrated Circuits by (37.1k points)
Determine the voltage gain for the circuit.

(a) 1.1

(b) 1.6

(c) 1.2

(d) 2.2

I had been asked this question in exam.

This interesting question is from Input Offset Voltage in portion Operational Amplifier Fundamentals of Linear Integrated Circuits

1 Answer

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by (39.8k points)
The correct choice is (d) 2.2

For a clear picture: The voltage gain, AF={1+[RF/( R1+ Rc)]} = 1+[15kΩ/(2.5kΩ+10kΩ)] = 2.2.

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