Suppose Q23 in 16.47 is replaced by a cascode current source. (a) What is the new value of output resistance R2? (b)What are the new values of the y-parameters of 16.53(b)? (c) What is the new value of Adm for the op amp? +Vcc0.25 AA0.75 AQ23Q2Q24-1.4 V OR5IREF+0.7 V39 k2-1.4 V oQ20Q215 k2-VEEFigure 16.47 741 bias circuitry with voltages corre-sponding to Vo = 0 V. izR250 k2115 k2100 2(b)

a) Calculating small signal output resistance Calculating output resistance

Answered: +Vcc 0.25 A A 0.75 A Q23 Q2 Q24 -1.4 V…

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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Suppose Q₂₃ in 16.47 is replaced by a cascode current source. (a) What is the new value of output resistance R₂? (b)What are the new values of the y-parameters of 16.53(b)? (c) What is the new value of A_dm for the op amp?

+Vcc
0.25 A
A
0.75 A
Q23
Q2
Q24
-1.4 V O
R5
IREF
+0.7 V
39 k2
-1.4 V o
Q20
Q21
5 k2
-VEE
Figure 16.47 741 bias circuitry with voltages corre-
sponding to Vo = 0 V.

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