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Feedback Amplifiers : Theory and Design - Gaetano Palumbo

Feedback Amplifiers

Theory and Design

Hardcover Published: 31st January 2002
ISBN: 9780792376439
Number Of Pages: 263

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Feedback Amplifiers: Theory and Design deals with feedback and feedback amplifiers. Although this topic has been extensively investigated over the years, theoretically exact and at the same time sufficiently simple and well organized material is not, to the authors' judgement, present today in literature. After describing the fundamental properties of feedback, the book illustrates techniques of analysis for greater insight into feedback amplifiers and design strategies to optimise their performance.

The book has two main targets 1) a tutorial purpose since its aim is first to introduce and then to bring the reader to in-depth analysis and design of feedback circuits; 2) to present original material on the topic of feedback circuits. In particular, a new comprehensive approach for the frequency compensation of two-stage and three-stage amplifiers is adopted, and insightful new results are reported for harmonic distortion in the frequency domain.

Acknowledgementsp. xi
Prefacep. xiii
Introduction to Device Modelingp. 1
Doped Siliconp. 1
Diodesp. 2
Reverse Bias Conditionp. 5
Graded Junctionsp. 6
Forward Bias Conditionp. 7
Diode Small Signal Modelp. 9
MOS Transistorsp. 9
Basic Operationp. 10
Triode or Linear Regionp. 12
Saturation or Active Regionp. 14
Body Effectp. 15
p-channel Transistorsp. 16
Saturation Region Small Signal Modelp. 16
Triode Region Small Signal Modelp. 21
Cutoff Region Small Signal Modelp. 23
Second Order Effects in MOSFET Modelingp. 24
Sub-threshold Regionp. 28
Bipolar-Junction Transistorsp. 29
Basic Operationp. 31
Early Effect or Base Width Modulationp. 32
Saturation Regionp. 33
Charge Stored in the Active Regionp. 33
Active Region Small Signal Modelp. 34
Referencesp. 36
Single Transistor Configurationsp. 37
The Generic Active Componentp. 37
AC Schematic Diagram and Linear Analysisp. 39
Common X (Emitter/Source) Configurationp. 41
Common X with Degenerative Resistance R[subscript X]p. 42
Common Y (Base/Gate)p. 48
Common Z (Collector/Drain)p. 51
Frequency Response of Single Transistor Configurationsp. 54
Common X Configurationp. 55
Common X with a Degenerative Resistancep. 56
Common Y and Common Z Configurationsp. 61
Feedbackp. 63
Method of Analysis of Feedback Circuitsp. 64
Signal Flow Graph Analysisp. 67
The Rosenstark Methodp. 69
The Choma Methodp. 72
The Blackman Theoremp. 74
Stability - Frequency and Step Responsep. 77
One-Pole Feedback Amplifiersp. 78
Two-Pole Feedback Amplifiersp. 82
Two-Pole Feedback Amplifiers with a Pole-Zero Doubletp. 92
Three-Pole Feedback Amplifiers with Real Polesp. 97
Three-Pole Feedback Amplifiers with a Pair of Complex and Conjugate Polesp. 98
Two-Pole Feedback Amplifiers with a Zerop. 100
Frequency Compensation Techniquesp. 103
Dominant-Pole Compensationp. 104
Miller (Pole-Splitting) Compensationp. 106
Compensation of the Miller RHP Zerop. 109
Nulling Resistorp. 110
Voltage Bufferp. 111
Current Bufferp. 114
Nested Miller Compensationp. 116
General Featuresp. 116
RHP Cancellation with Nulling Resistorsp. 120
Reversed Nested Miller Compensationp. 126
General Featuresp. 126
RHP Cancellation with Nulling Resistorsp. 130
RHP Cancellation with One Real Voltage Bufferp. 131
RHP Cancellation with One Real Current Bufferp. 134
Fundamental Feedback Configurationsp. 137
Series-Shunt Amplifierp. 137
Series-shunt Amplifier with Bufferp. 146
Shunt-Series Amplifierp. 148
Shunt-Shunt Amplifierp. 155
Series-Series Amplifierp. 158
A General View of Single-Loop Amplifiersp. 162
Frequency Compensation of the Fundamental Configurationsp. 165
Frequency Compensation of the Series-Shunt Amplifierp. 166
Frequency Compensation of the Shunt-Series Amplifierp. 169
Frequency Compensation of the Shunt-Shunt Amplifierp. 171
Frequency Compensation of the Series-Series Amplifierp. 172
Harmonic Distortionp. 173
Harmonic Distortion at Low Frequencyp. 176
Nonlinear Amplifier with Linear Feedbackp. 176
Nonlinear Amplifier with Nonlinear Feedbackp. 178
Harmonic Distortion in the Frequency Domainp. 182
Open-loop Amplifiersp. 182
Closed-loop Amplifiersp. 185
Harmonic Distortion and Compensationp. 191
Two-stage Amplifier with Dominant-Pole Compensationp. 191
Two-stage Amplifier with Miller Compensationp. 193
Single-stage Amplifiersp. 199
An Alternative Frequency Analysisp. 205
Noisep. 207
Basic Conceptsp. 207
Equivalent Input Noise Generatorsp. 209
Noise Models of Circuit Componentsp. 212
Effect of Feedbackp. 214
Examples of Feedback in Integrated Circuitsp. 221
The Output Resistance of a Differential Amplifier with Current-Mirror Loadp. 221
The Wilson Current Mirrorp. 224
The Cascode Current Mirrorp. 228
The Current Feedback Operational Amplifier and Its High-Level Characteristicsp. 229
Transistor-Level Architecture, Small-Signal Model, and Frequency Compensation of CFOASp. 232
Integrators and Differentiators with CFOASp. 236
CFOA Versus VOAp. 238
Frequency Analysis of RC Networksp. 243
Transfer Function of a Generic RC Networkp. 243
Approximated Polesp. 247
Referencesp. 251
About the Authorsp. 263
Table of Contents provided by Syndetics. All Rights Reserved.

ISBN: 9780792376439
ISBN-10: 0792376439
Audience: Professional
Format: Hardcover
Language: English
Number Of Pages: 263
Published: 31st January 2002
Publisher: Springer
Country of Publication: NL
Dimensions (cm): 24.0 x 16.0  x 1.91
Weight (kg): 0.59