The circuit in Figure P12.49 has transistor parameters: (h_{F E}=100), (V_{B E}() on ()=0.7 mathrm{~V}), and (V_{A}=infty).

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The circuit in Figure P12.49 has transistor parameters: $h_{F E}=100$, $V_{B E}($ on $)=0.7 \mathrm{~V}$, and $V_{A}=\infty$.

(a) From the quiescent values, determine the small-signal parameters for $Q_{1}$ and $Q_{2}$.

(b) Using nodal analysis, determine the small-signal closed-loop current gain $A_{i f}=i_{o} / i_{s}$.

(c) Using nodal analysis, find the input resistance $R_{i f}$.

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Microelectronics Circuit Analysis And Design

ISBN: 9780071289474

4th Edition

Authors: Donald A. Neamen

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Question Posted: May 08, 2024 03:01 AM

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The circuit in Figure P12.49 has transistor parameters: (h_{F E}=100), (V_{B E}() on ()=0.7 mathrm{~V}), and (V_{A}=infty).

Question:

www V+ = +10 V RCI = 40 kQ Rif Rs = 10 Q E1 = 0.2 mA Figure P12.49 V = -10 V ww Rp = 10 k HH C www www Rc2=2 kQ C Q2 R = RE= 1 10.5

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Microelectronics Circuit Analysis And Design

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