Answered: The MOSFET common-source amplifier…

The MOSFET common-source amplifier shown here has 8m= 6 mA/V, ro= 20kQ2, CGS = 5 pF and CGD = 1 pF. Use the method of open-circuit time constants to determine the upper band frequency, f, in Hz.

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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Concept explainers

Multistage Amplifier

The multistage amplifier is generally a voltage or power amplifier. The multistage amplifier has a number of single stage amplifier that are cascaded together. Since a single stage amplifier output is not useful, they are being replaced with multistage amplifiers or multistage transistor amplifiers. The multistage amplifier are used where the gain required is high or the input signal is very small such that only a single stage amplifier cannot amplify it.

Question

The MOSFET common-source amplifier shown here has gm² 6 mA/V, ro 20k, CGS
= 5 pF and CGD = 1 pF. Use the method of open-circuit time constants to determine
the upper band frequency, fu, in Hz.
Vsi
sig
Rsig
= 200 ΚΩ
RGI
2 ΜΩ
o
HH
CC1 = 0.1 μF
RG2
ΤΜΩ
www.
VDD
Rs
2 ΚΩ
RD
10 ΚΩ
2₁
ww
H
HH
Cc2 = 0.1 μF
Cs=5 µF
-OV₂
R₁ = 10 kn

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