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To increase the input resistance in differential amplifier, replace the transistor by

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in Linear Integrated Circuits by (39.8k points)
To increase the input resistance in differential amplifier, replace the transistor by

(a) Current mirror

(b) Current repeater

(c) Darlington pair

(d) All of the mentioned

The question was posed to me in exam.

My question is based upon Operational Amplifier Internal Circuit in chapter Operational Amplifier of Linear Integrated Circuits

1 Answer

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by (39.8k points)
The accurate option is (c) Darlington pair

Delve into insight with: Higher value of input resistance can be obtained by using Darlington pair in place of transistor.

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