Figure 4 shows a differential amplifier where the input voltage is Vin = Vilthe output voltage is Vout- Vi2 and%3DVo-(a)What kind of amplifier is it?Draw the small equivalent circuit and calculate the differential voltage gain G,in the case of balanced input and unbalanced output. For the calculation,consider the output resistances roi of the two transistors as open circuits(negligible current flowing in them). Show the detail of the calculation andstate any assumption.(b)(c)What is Gv if you include the output resistances roi in the analysis? For thebalanced input and identical transistors, the current variation in M1 and M2are equal and opposite: i1 = -i2 (the current flowing in Rs is i- 0).V DDRp1Rp2VinLM,M2 V2V'ss =0 VFigure 4

A differential amplifier is a type of electrical amplifier that magnifies the difference between two…

Answered: Figure 4 shows a differential amplifier…

Figure 4 shows a differential amplifier where the input voltage is Vin = vil - Vi2 and the output voltage is Vout =Vo- %3D %3D

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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Question

Figure 4 shows a differential amplifier where the input voltage is Vin = Vil
the output voltage is Vout
- Vi2 and
%3D
Vo-
(a)
What kind of amplifier is it?
Draw the small equivalent circuit and calculate the differential voltage gain G,
in the case of balanced input and unbalanced output. For the calculation,
consider the output resistances roi of the two transistors as open circuits
(negligible current flowing in them). Show the detail of the calculation and
state any assumption.
(b)
(c)
What is Gv if you include the output resistances roi in the analysis? For the
balanced input and identical transistors, the current variation in M1 and M2
are equal and opposite: i1 = -i2 (the current flowing in Rs is i- 0).
V DD
Rp1
Rp2
VinLM,
M2 V2
V'ss =0 V
Figure 4

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