The above figure shows a simple amplifier consisting of three resistors and an op-amp type uA741. The amplifier is designed so as to strive for a gain of Af [V / V], using the classic design rule for a non-inverting amplifier stage Af = R3 / R2 +1.
1) Calculate VoutDC for the circuit with open input (assume that Ao = ∞).
2) With an ideal op-amp (Ao = ∞) the amplifier will precisely have a gain of Af [V / V]. Calculate the error of the gain when using a real op-amp with a Ao [V / V].
3) The setting is connected to a sinusoidal inputsignal at Vin 100 mVpeak. Calculate the highest frequency that can be reproduced without distortion and without a decrease in gain.
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The given data are:
R1 = 87 KΩ.
R2 = 1 KΩ.
R3 = 70 KΩ.
Ao = 179000 [V/V].
Gain Bandvidth Product = 1,79 MHz.
Slew Rate = 1,9 V/uS.
Vos = 1,8 mV.
Input Bias Current = 160 nA.
*The deadline is today before midnight*
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