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National Instruments interview question

Solve the gain of a non-inverting op amp. Suppose the input to the op amp was a 2.5 VAC source with a 2.5 V DC offset. Alter the op amp so there is no offset on the output voltage.

Interview Answers

Anonymous

10 Oct 2015

Turn the op amp into a differential amplifier (put a 2.5 VDC source on the inverting input to subtract the offset off before amplifying).

Anonymous

21 Jan 2021

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