In: Electrical Engineering
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8 kΩ, Ro = 850 Ω. With a 12V DC power source, each amplifier draws 1.5 mA average current.
a) How many amplifiers do you need to cascade to get at least a voltage gain of 1000 with a load resistance of 1.0 kΩ?
b) What is the voltage gain Av obtained? (Respond with a rounded whole number)
c) For the cascade connection, find the voltage gain in open circuit. (Respond with a rounded whole number)
d) If you have a 1.5 mV input, how efficient is the equivalent amplifier?
e) Find the transconductance of the entire circuit.