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Gain

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Gain

Postby crvpt » Mon Apr 07, 2014 1:01 am

Hi, how do I work out the gain of this circuit? Thanks. [attachment=0]
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Cir.png (10.29 KiB) Viewed 4313 times
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Re: Gain

Postby pebe » Mon Apr 07, 2014 9:43 am

If R! is the top 10K resistor and R2 is the bottom 10K, then the gain of the 1st stage = (R1+R2)/R1 = 20K/10K = 2. The gain of the 2nd stage =1, so overall the gain = 2 x 1 = 2
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