pipeline adc 博士论文 2008

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CHAPTER 1. GENERAL OVERVIEW.................................................................................. 9
References............................................................................................................... 16
CHAPTER 2. POWER DEPENDENCE OF FEEDBACK AMPLIFIERS ON OPAMP
ARCHITECTURE.................................................................................................................. 19
Abstract................................................................................................................... 19
2.1 Introduction...................................................................................................... 19
2.2 Amplifier Optimization Formulation............................................................... 21
2.2.1 Single Stage Amplifier (Case 1) ............................................................... 22
2.2.2 Two Stage Miller Compensated Amplifier (Case 2) ................................ 29
2.2.2.1 Poles and Zero Consideration ............................................................ 31
2.2.2.2 Parasitic Consideration ...................................................................... 32
2.2.2.3 Gain Enhancement Techniques......................................................... 37
2.2.2.4 Power Reduction Technique .............................................................. 37
2.2.3 Two Stage Miller and Resistive Compensated Amplifier (Case 3) .......... 38
2.3 Results.............................................................................................................. 43
2.4 Conclusion ....................................................................................................... 45
2.5 Acknowledgement ........................................................................................... 45
References............................................................................................................... 45
CHAPTER 3. A NEW HIGH PRECISION LOW OFFSET DYNAMIC COMPARATOR
FOR HIGH RESOLUTION HIGH SPEED ADCS................................................................ 48
Abstract................................................................................................................... 48
3.1 Introduction...................................................................................................... 49
3.2 Dynamic Comparator Design .......................................................................... 53
3.2.1 Differential Pair Comparator .................................................................... 53
3.2.2 Proposed Comparator................................................................................ 56
3.3 Sensitivity analysis .......................................................................................... 58
3.4 Simulation Results ........................................................................................... 60
3.5 Conclusions...................................................................................................... 72
3.6 Acknowledgement ........................................................................................... 72
References............................................................................................................... 72
CHAPTER 4. KT/C CONSTRAINT OPTIMIZATION OF POWER IN PIPELINE ADCS 75
Abstract................................................................................................................... 75
4.1 Introduction...................................................................................................... 75
4.2 Power Optimization ......................................................................................... 77
4.2.1 Power Consumption Sources .................................................................... 77
4.2.2 Power Analysis of Pipeline Stages ........................................................... 79
4.3 Results.............................................................................................................. 84
4.4 Conclusions...................................................................................................... 87
iv
References............................................................................................................... 87
CHAPTER 5. STAITISCAL MODELING OF OVER-RANGE PROTECTION
REQUIREMENT FOR A SWITCHED CAPACITOR INTER-STAGE GAIN AMPLIFIER
................................................................................................................................................ 89
Abstract................................................................................................................... 89
5.1 Introduction...................................................................................................... 90
5.2 Output Voltage Variation................................................................................. 92
5.2.1 Charge-Redistribution Switched Capacitor Amplifier (CR-SC Amp) ..... 93
5.2.2 Flip-Around Switched Capacitor Amplifier (FA-SC Amp) ..................... 97
5.3 Results.............................................................................................................. 99
5.4 Conclusion ..................................................................................................... 104
5.5 Acknowledgement ......................................................................................... 105
References............................................................................................................. 105
CHAPTER 6. NEW OVER-RANGE PROTECTION SCHEME IN PIPELINE DATA
CONVERTERS .................................................................................................................... 109
Abstract................................................................................................................. 109
6.1 Introduction.................................................................................................... 110
6.2 Linearity and Over-ranging ........................................................................... 111
6.2.1 Operating Windows ................................................................................ 111
6.2.2 Critical Points.......................................................................................... 115
6.3 Strategies for Providing Over-Range Protection ........................................... 116
6.3.1 Critical Window...................................................................................... 117
6.4 Conlusions ..................................................................................................... 120
References............................................................................................................. 120
CHAPTER 7. ADJUSTABLE HYSTERESIS CMOS SCHMITT TRIGGERS.................. 122
Abstract................................................................................................................. 122
7.1 Introduction.................................................................................................... 122
7.2 Traditional Inverter based Schmitt triggers ................................................... 124
7.3 New Schmitt Trigger Design ......................................................................... 127
7.4 Simulation Results ......................................................................................... 130
7.5 Conclusions.................................................................................................... 140
References............................................................................................................. 140
CHAPTER 8. GENERAL CONCLUSIONS AND FUTURE WORK ................................ 142
8.1 General Conclusions ...................................................................................... 142
8.2 Recommendations for Future Research......................................................... 145

vensen

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Low power high speed and high accuracy design methodologies for Pipeline Analog-to-
Digital converters


by


Vipul Katyal



A dissertation submitted to the graduate faculty

in partial fulfillment of the requirements for the degree of

DOCTOR OF PHILOSOPHY




Major: Electrical Engineering

Program of Study Committee:
Randall L. Geiger, Co-major Professor
Degang J. Chen, Co-major Professor
Chirs Chong-Nuen Chu
Ratnesh Kumar
Richard J. Martin









Iowa State University

Ames, Iowa

2008

Copyright © Vipul Katyal, 2008.  All rights reserved.

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非常感谢~~·