The parameters of the two inverting op-amp circuits connected in cascade in Figure P9.16 are (R_{1}=10 mathrm{k}

Question:

The parameters of the two inverting op-amp circuits connected in cascade in Figure P9.16 are $R_{1}=10 \mathrm{k} \Omega, R_{2}=80 \mathrm{k} \Omega, R_{3}=20 \mathrm{k} \Omega$, and $R_{4}=100 \mathrm{k} \Omega$. For $v_{I}=-0.15 \mathrm{~V}$, determine $v_{O 1}, v_{O}, i_{1}, i_{2}, i_{3}$, and $i_{4}$. Also determine the current into or out of the output terminal of each op-amp.

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