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Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro...

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Electrical Engineering

Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8kΩ, Ro = 850 Ω. With a 12V DC power source, each amplifier draws1.5 mA average current.

a) How many amplifiers do you need to cascade to get at least avoltage gain of 1000 with a load resistance of 1.0 kΩ?

b) What is the voltage gain Av obtained? (Respond with a roundedwhole number)

c) For the cascade connection, find the voltage gain in opencircuit. (Respond with a rounded whole number)

d) If you have a 1.5 mV input, how efficient is the equivalentamplifier?

e) Find the transconductance of the entire circuit.

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