non inverting opamp at gain of 1 question

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ants

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I want to use an opamp as non inverting, so the gain is G=1+(R2/R1).

If I wanted the gain to be unity, i.e. just 1, could I then short out both R2 and R1?
 

No, you couldn't. You should short R2 and open R1 (voltage follower configuration).
 

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    ants

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I see, thanks.

Ant.
 

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