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.
R1 = 10 kΩ
VEE = -12V
VCC = 12V
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.
To calculate the amplitude of the output voltage in an inverting amplifier, we need to determine the voltage gain. The voltage gain (Av) for an inverting amplifier is given by the formula:
Av = -R2/R1
Given that R2 = 80kΩ and R1 = 10kΩ, we can substitute these values into the formula:
Av = -80kΩ/10kΩ
= -8
Now, we can calculate the output voltage using the formula:
Vout = Av * Vin
Where Vout is the output voltage and Vin is the input voltage.
Given that the amplitude of the input voltage (Vin) is 100 mV, we can substitute these values into the formula:
Vout = -8 * 100 mV
= -800 mV
Therefore, the amplitude of the output voltage is 800 mV.