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Voltage follower
Oscillator circuit
Signal generator
Digital circuit
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The buffer amplifier uses negative feedback so that the output follows the input exactly. Other options are incorrect because A circuit that keeps a signal running needs positive feedback, not negative; Creating a new signal requires an energy source, not just copying an existing one.
Key Concepts
Negative Feedback in Op-Amps
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Deep Dive: Negative Feedback in Op-Amps
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Definition
Negative feedback in op-amps involves connecting the output back to the input to achieve self-correction. In negative feedback, the ideal op-amp forces the inverting and non-inverting inputs to be equal, maintaining stability and precise control.
Topic Definition
Negative feedback in op-amps involves connecting the output back to the input to achieve self-correction. In negative feedback, the ideal op-amp forces the inverting and non-inverting inputs to be equal, maintaining stability and precise control.
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