Figure P10.11 shows a basic two-transistor pnp current source. The transistor parameters are (V_{E B}(mathrm{on})=0.7 mathrm{~V}, beta=40),

Question:

Figure P10.11 shows a basic two-transistor pnp current source. The transistor parameters are $V_{E B}(\mathrm{on})=0.7 \mathrm{~V}, \beta=40$, and $V_{A}=\infty$. Design the circuit such that $I_{O}=0.20 \mathrm{~mA}$ and determine the value of $I_{\mathrm{REF}}$.

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