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Mention a step to reduce the output offset voltage caused due to input bias current?

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+1 vote
in Linear Integrated Circuits by (37.1k points)
Mention a step to reduce the output offset voltage caused due to input bias current?

(a) Use small feedback resistor and resistance at the input terminal

(b) Use small feedback resistors

(c) Reduce the value of load resistors

(d) None of the mentioned

This question was posed to me in a job interview.

This is a very interesting question from Input Bias Current topic in portion Operational Amplifier Fundamentals of Linear Integrated Circuits

1 Answer

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by (39.8k points)
Accurate choice is (b) Use small feedback resistors

Dive into clarity with: Since the output offset voltage is proportional to feedback resistor and input bias current. The amount of VOIB can be reduced by reducing the value of feedback resistor.

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