In: Physics
Voltage amplifiers are available with Avoc = 8 V / V, Rin = 1.8
kΩ, Ro = 850 Ω. With a 12 V DC power source it consumes 1.5 mA
average current.
to.
a. How many amplifiers do you need to cascade to get at least a
1000 voltage gain with a load resistance of 1.0 kΩ?
b. What is the effective voltage gain Av obtained? (Respond with a
whole number - rounded -)
c. Find the Open Circuit Voltage Gain for Cascading (Answer with a
rounded integer)
d. If you have an input rms voltage of 1.5mV, what is the
efficiency of the amplifier?
e. What is the transconductance of the circuit?