Design a basic two-transistor current source circuit configuration such that (I_{O}=0.40 mathrm{~mA}) and (I_{mathrm{REF}}=0.20 mathrm{~mA}). The circuit

Question:

Design a basic two-transistor current source circuit configuration such that $I_{O}=0.40 \mathrm{~mA}$ and $I_{\mathrm{REF}}=0.20 \mathrm{~mA}$. The circuit is to be biased at $V^{+}=2.5 \mathrm{~V}$ and $V^{-}=-2.5 \mathrm{~V}$. Neglect base currents and assume that $V_{B E}(\mathrm{on})=0.7 \mathrm{~V}$ and $V_{A}=\infty$.

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