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?
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The AMP gain is
- 10
Therefore
Vout = Vin(-10)
Vin = 3
Vout = 3(-10) = -12 because the Neg supply is -12V
- 10
Therefore
Vout = Vin(-10)
Vin = 3
Vout = 3(-10) = -12 because the Neg supply is -12V
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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