10. Designing operational amplifier circuit

For the summing amplifier of Figure 10, obtain values of R₁, R₁, R₂ and R, that achieve the

following output X. Assume that the minimum input resistance is 30 k Show the formulas

used and all working out.

m

1/₂0

V₂0

R3

R₂

R₁

V=-5V,+2V₂+V₂

V

V₂

72

+

Figure 10

Rf

Vo