Consider the current-to-voltage converter circuit shown in given Figure. The input resistance Ri f is assumed to be small, the output resistance is Ro = 0, and the op-amp gain Az is large.
(a) Write the closed-loop transfer function in the form
![](https://test.transtutors.com/qimg/d2d17b4f-fc09-4520-99ce-0c09605e33ad.png)
(b) What is the expression for βg?
(c) If Az = 5 × 106 Ω and Azf = 5 × 104 Ω, what is the required βg and RF?
(d) If Az decreases by 10 percent, what is the percent change in Az f?
![545_Figure 04.jpg](https://secure.tutorsglobe.com/CMSImages/545_Figure 04.jpg)