2) SIM D *8.29 The differential amplifier in Fig. P8.29 uti- lizes a resistor R to establish a 1-mA dc bias current. Note that this amplifier uses a single 5-V supply and thus the dc common-mode voltage VCM cannot be zero. Transistors Q and Q₂ have KW/L=2.5 mA/V², V₁=0.7 V, and λ = 0. (a) Find the required value of VCM- (b) Find the value of R, that results in a differential gain A, of 8 V/V. (c) Determine the dc voltage at the drains. (d) Determine the common-mode gain AVD/AVCM. (Hint: You need to take 1/g into account.) (e) Use the common-mode gain found in (d) to determine the change in VCM that results in Q, and Q₂ entering the tri- ode region. Vid VCM Figure P8.29 RD VDD=5 V 2₁ Vod + RD 1 mARss=1kn

2) SIM D *8.29 The differential amplifier in Fig. P8.29 uti- lizes a resistor R to establish a 1-mA dc bias current. Note that this amplifier uses a single 5-V supply and thus the dc common-mode voltage VCM cannot be zero. Transistors Q and Q₂ have KW/L=2.5 mA/V², V₁=0.7 V, and λ = 0. (a) Find the required value of VCM- (b) Find the value of R, that results in a differential gain A, of 8 V/V. (c) Determine the dc voltage at the drains. (d) Determine the common-mode gain AVD/AVCM. (Hint: You need to take 1/g into account.) (e) Use the common-mode gain found in (d) to determine the change in VCM that results in Q, and Q₂ entering the tri- ode region. Vid VCM Figure P8.29 RD VDD=5 V 2₁ Vod + RD 1 mARss=1kn

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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