Question: Revisit the exact analysis of the inverting amplifier in section 4.3. (a) Find an expression for the voltage gain if R in , R

Revisit the exact analysis of the inverting amplifier in section 4.3.

(a) Find an expression for the voltage gain if R in ≠ ∞, R out = 0, Ao ≠ ∞.

(b) For R2 = 27kΩ and R1 = 3kΩ, plot the ration of the actual gain to the ideal gain for Ao = 1000 and 1kΩ ≤ 100kΩ.

(c) From your plot, does the ratio approach unity as R in increases or decreases?

(d) From your plot in (b), what is the minimum value of R in if the gain ratio is to be at least 0.98?

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