Operational amplifier

Burry Guest 2023-02-17 22:46 #7352059

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For this operational amplifier circuit, calculate the necessary values of R1 and R2 to limit the voltage gain to 5 and 55, respectively, with a potentiometer resistance of 10 kilohms.

Guys, please help me . I can’t find the formulas. Thank you

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Robert M. (r0bm) 2023-02-18 00:34 #7352122

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Yunal wrote:

I can’t find the formulas.

For two unknown variables (R1,R2) you need to solve two equations:

5=((R2/(R1+10k))+1

55=((R2+10k)/R1)+1

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