(a) Find the value of R required to establish a current of 100 µA in Q1. (b) Find W2 and R2 so that Q2 operates at the edge of saturation with a current of 0.5 mA. Vpp = +1.8 V R2 -R VD2 O Q2 VDI + V GS |

Introductory Circuit Analysis (13th Edition)
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ISBN:9780133923605
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Publisher:Robert L. Boylestad
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D 5.45 For the circuit in Fig. E5.10, assume that Q1 and Q2 are matched except for having different widths, W1 and
W2. Let V, = 0.5 V, k = 0.4 mA/V², L1 = L2 = 0.36 µm, W1 = 1.8 µm, and 2 = 0.
(a) Find the value of R required to establish a current of 100 µA in Q1.
(b) Find W2 and R2 so that Q2 operates at the edge of saturation with a current of 0.5 mA.
VDp = +1.8 V
R2
- R
Vp2 0-
+
Q2
+
Vpi
VGs
Fig. E.5.10
Transcribed Image Text:D 5.45 For the circuit in Fig. E5.10, assume that Q1 and Q2 are matched except for having different widths, W1 and W2. Let V, = 0.5 V, k = 0.4 mA/V², L1 = L2 = 0.36 µm, W1 = 1.8 µm, and 2 = 0. (a) Find the value of R required to establish a current of 100 µA in Q1. (b) Find W2 and R2 so that Q2 operates at the edge of saturation with a current of 0.5 mA. VDp = +1.8 V R2 - R Vp2 0- + Q2 + Vpi VGs Fig. E.5.10
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