Operational Amplifier question
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Operational Amplifier question

[From: ] [author: ] [Date: 11-05-24] [Hit: ]
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An inverting amplifier has R2 (Rf) = 10kohms R1 (Rin) = 1kohm. An input signal of 3v is applied to the input V1. If +12v and -12v are used for the supply rails, what would the value of the signal at the output be?

-
The AMP gain is

- 10

Therefore

Vout = Vin(-10)

Vin = 3

Vout = 3(-10) = -12 because the Neg supply is -12V

-
Your Op Amp has a closed loop gain of 11 and with an input of 3 volts it will attempt to produce an output of 33 volts which it cannot do because the rail voltages are less than that. So you will get a badly clipped sine wave (almost a square wave) of +/- 12 volts
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