Chapter 14, Problem 14.10P

For the op−amp used in the inverting amplifier configuration in FigureP14.10, the open−loop parameters are $A_{OL}={10}^3$ and $R_o=0$ . Determine the closed−loop gain $A_{CL}={\upsilon }_O/{\upsilon }_I$ , and input resistance $R_{if}$ for an open−loop input differential−mode resistance of: (a) $R_i=1\text{k}\Omega$ , (b) $R_i=10\text{k}\Omega$ ,and(c) $R_i=100\text{k}\Omega$ .

Figure P14.10