Question

2. Consider this non-inverting op-amp amplifier This non-inverting amplifier circuit uses an operational amplifier as a building block. Do around. The op-amp's gain is a "little a"), but the overall amplifier's gain is A Cbig A. Derive the value of the output voltage, ve, as a function of the input voltage not confuse the non-inverting amplifier with the operational amplifier that it is built a. and the op-amp's gain a. What is the overall amplifier's gain Avo/v? (20pts) b. We define the amplifier's ideal gain, Aideal to be Adeal limA. What is the amplifier's ideal gain? (NOT the operational amplifier's ideal gain, which is obviously infinite, but the non-inuerting amplifier's ideal gain.) How does Aideal depend on the resistor divider formed by R, and R2? (5pts) c. Offer an intuitive explanation for the cicuit's operation. (5pts) d. What is the amplifiers gain A if the op-amps gain a is 9992 What is the gain error, or lr, in percent? (spts) Adeal A What would a need to be for the gain error to be 0.1%? How does this compare to the value of (5pts) e. needed for the buffer to have the same percentage gain error? . Suppose the op-amp is powered from Vcc +10V, VEe-10V supply voltage rails so that its output saturates at +10V. Supposing A Aideal, what range of input voltages can the amplifier support before the amplified signal gets clipped? (5pts) +lov V. D: - lov

Answer 1

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