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Why open-loop op-amp configurations are not used in linear applications?

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+1 vote
in Linear Integrated Circuits by (38.2k points)
Why open-loop op-amp configurations are not used in linear applications?

(a) Output reaches positive saturation

(b) Output reaches negative saturation

(c) Output switches between positive and negative saturation

(d) Output reaches both positive and negative saturation

This question was posed to me in exam.

Asked question is from Open Loop Op-Amp Configuration in section Operational Amplifier Characteristics of Linear Integrated Circuits

1 Answer

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by (39.8k points)
The correct answer is (c) Output switches between positive and negative saturation

Break it down: When operated in open loop, the output switches between positive and negative saturation levels. For this reason, open loop op-amp configurations are not used in linear applications.

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