Learning Path
Question & Answer
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It enhances the gain of the op-amp.
It reduces the impact of power supply variations on the output voltage.
It increases the input impedance of the op-amp.
It lowers the overall bandwidth of the circuit.
Understanding the Answer
Let's break down why this is correct
A high PSRR means the op‑amp ignores changes in the supply voltage. Other options are incorrect because Increasing PSRR does not raise the amplifier’s strength; Input impedance depends on the op‑amp’s internal transistor design, not on PSRR.
Key Concepts
Op-Amp Gain and Practical Considerations
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Deep Dive: Op-Amp Gain and Practical Considerations
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Definition
While op-amps do not have infinite gain in practice, their high gain allows for reliable circuit design using negative feedback. Op-amp gain specifications vary between models, and practical op-amp circuits rely on predictable gain behavior.
Topic Definition
While op-amps do not have infinite gain in practice, their high gain allows for reliable circuit design using negative feedback. Op-amp gain specifications vary between models, and practical op-amp circuits rely on predictable gain behavior.
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