(b) Choose appropriate resistance values for the two resistors R, and R₂ for an expected voltage gain of 21. Relevant calculations and practical considerations should be given. (c) State the input and output resistances of the amplifier in Figure 4.1 by assuming the op-amp in the circuit is ideal. Explain briefly if any improvements should be made to the input and output resistances of the amplifier.
(b) Choose appropriate resistance values for the two resistors R, and R₂ for an expected voltage gain of 21. Relevant calculations and practical considerations should be given. (c) State the input and output resistances of the amplifier in Figure 4.1 by assuming the op-amp in the circuit is ideal. Explain briefly if any improvements should be made to the input and output resistances of the amplifier.
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Question
Transcribed Image Text:(a) By applying the two golden rules of ideal op-amp circuits, show that the
closed-loop voltage gain of the amplifier circuit in Figure 4.1 is
(b)
(c)
R₁
G=1+R₂
R₂
R₂
Figure 4.1
Only do B and C
Choose appropriate resistance values for the two resistors R₁ and R₂
for an expected voltage gain of 21. Relevant calculations and practical
considerations should be given.
State the input and output resistances of the amplifier in Figure 4.1 by
assuming the op-amp in the circuit is ideal. Explain briefly if any
improvements should be made to the input and output resistances of
the amplifier.
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