In a inverting amplifier, assume R2 = 80kΩ and the amplitude of the input voltage is 100 mV. Calculate the amplitude of the output voltage in mV. Hint: The Amplitude of the output voltage is the input amplitude times the voltage gain.

Question

R1 = 10 kΩ
VEE = -12V
VCC = 12V

Answer 1

The voltage gain of an inverting amplifier is given by the formula:

-Vout/Vin = R2/R1

Where Vin is the input voltage and Vout is the output voltage. Therefore:

-Vout/0.1 = 80/10

-Vout = 0.8 V

The amplitude of the output voltage is the absolute value of Vout, which is 0.8 V or 800 mV.