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Design of High-Performance Negative Feedback Amplifiers
Amplifier design is very often regarded as making a selection from the large arsenal
of known amplifier circuits and then adapting it for a specific purpose, possibly
with the aid of computer-aided-design programs. Now and then designers are
surprised by the introduction of a new amplifier circuit performing better in some
respects than the others.
Each aspiring designer has to find his own way in this jungle. He has to choose
from a rather chaotic and scattered collection of amplifier circuits rather than apply
a systematic and straightforward design sequence that enables him to design his
special-purpose amplifier circuit. A great deal of experience is essential.
This work is an attempt to make a useful contribution to the extensive literature on
the subject of amplifier design. It can be justified on the grounds that the approach
is believed to be unique in a number of respects. Many works that promise to cover
the subject are instead concerned with analysis. Moreover, they frequently deal
specifically or separately with particular design aspects, characterised by descriptions
such as ‘wide-band’, ‘low-noise’, ‘low-distortion’, etc.
A treatment of the various design aspects and their interconnections, however, is
necessary for fruitful amplifier design. At the basis of such a treatment lies the
observation — usually easily overlooked — that amplifier design is concerned in
the first place with obtaining an adequate quality of information transfer. Amplifiers
are more than electronic circuits merely bringing the source power up to a higher
level.
Quality requirements are imposed on the signal transfer relative to the type of infor-
mation and to the manner of perception, registration, or processing. The quality
of information transfer is determined by a large number of quality aspects such as
linearity, accuracy, efficiency, signal-to-noise ratio, etc. Unfortunately, it cannot be
expressed as a quantitative figure of merit.
A systematic, straightforward design approach is presented in this work. Preference
was given to a qualitative rather than to a quantitative approach.
Finding the proper configurations for the basic amplifier and of the amplifier stages
is considered of primary importance and is emphasised here. This book is therefore
largely concerned with the design phase preceding the phase in which existing
computer aids can be helpful.
Contents: Basic Amplifier Configurations for Optimum Transfer of Information
from Signal Sources to Loads • A Classification and some Properties of Configurations
with one Active Device • Design Considerations for Optimum Noise Performance
of Negative-Feedback Amplifiers • Design Considerations Regarding Optimum
Accuracy an d Linearity of Negative Feedback Amplifiers • Design Considerations
Regarding Optimum High-Frequency Performance of Negative-Feedback Amplifiers
• The Design of Bias Circuitry • Outline of the Design Method • Appendix: Influence
of the Induced Gate Noise in Wide-Band Amplifiers.
Published by VSSD
URL on this book: http://www.vssd.nl/hlf/e022.htm
ISBN-10 90-407-1247-6
ISBN-13 9789040712470
Design of
High-Performance
Negative Feedback
Amplifiers
Design of High-Performance
Negative Feedback Amplifiers
e022
E.H. Nordholt
E.H. Nordholt
VS
SD
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