Chapter 4, Problem D4.79P

The p−channel JFET common−source amplifier in Figure P4.79 has transistor parameters $I_{DSS}=8\text{mA}$ , $V_P=4\text{V}$ , and $\lambda =0$ . Design the circuit such that $I_{DQ}=4\text{mA}$ , $V_{SDQ}=7.5\text{V}$ , $A_{\upsilon }={\upsilon }_o/{\upsilon }_i=-3$ , and $R_1+R_2=400\text{k}\Omega$ .

Figure P4.79