8. Non-Ideal op amp (Realistic) circuit: The inverting amplifier in the circuit shown has an input resistance of $500 k Ω$ , an output resistance of $5 k Ω$ , and an open loop gain of 300,000 . Assume that the amplifier is operating in its linear region. a) Calculate the voltage gain (vo/vg) of the amplifier. b) Calculate the resistance seen by the signal source (vg). c) Repeat (a)-(b) using the ideal model for the op amp.

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8. Non-Ideal op amp (Realistic) circuit: The inverting amplifier in the circuit shown has an input resistance of

500 k Ω

, an output resistance of

5 k Ω

, and an open loop gain of 300,000 . Assume that the amplifier is operating in its linear region. a) Calculate the voltage gain (vo/vg) of the amplifier. b) Calculate the resistance seen by the signal source (vg). c) Repeat (a)-(b) using the ideal model for the op amp.

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