(a) An engineer is to design an amplifi er with a gain of 103 V/V and a 60.25% accuracy, or A 5 103 V/V 6 0.25%, using amplifi er stages with a 5 104 V/V 6 25% each. Verify that a single stage won’t...

(a) An engineer is to design an amplifi er with a gain of 103 V/V and a 60.25% accuracy, or A 5 103 V/V 6 0.25%, using amplifi er stages with a 5 104 V/V 6 25% each. Verify that a single stage won’t do it. Hence, consider cascading two or more identical stages, each using local feedback to desensitize its own gain and thus give A 5 A1 3 A2 3 . . . . What is the minimum number of stages required, and what is the net tolerance of the overall gain? (b) Repeat, but for the tighter specifi cation A 5 103 V/V 6 0.1%.