Reference-Free CMOS Pipeline Analog-to-Digital Converters

  • Michael Figueiredo
  • João Goes
  • Guiomar Evans

Part of the Analog Circuits and Signal Processing book series (ACSP)

Table of contents

  1. Front Matter
    Pages i-xvi
  2. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 1-4
  3. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 5-45
  4. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 47-72
  5. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 73-115
  6. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 117-139
  7. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 141-162
  8. Michael Figueiredo, João Goes, Guiomar Evans
    Pages 163-165
  9. Back Matter
    Pages 167-182

About this book


This book shows that digitally assisted analog-to-digital converters are not the only way to cope with poor analog performance caused by technology scaling. It describes various analog design techniques that enhance the area and power efficiency without employing any type of digital calibration circuitry. These techniques consist of self-biasing for PVT enhancement, inverter-based design for improved speed/power ratio, gain-of-two obtained by voltage sum instead of charge redistribution, and current-mode reference shifting instead of voltage reference shifting. Together, these techniques allow enhancing the area and power efficiency of the main building blocks of a multiplying digital-to-analog converter (MDAC) based stage, namely, the flash quantizer, the amplifier, and the switched capacitor network of the MDAC. Complementing the theoretical analyses of the various techniques, a power efficient operational transconductance amplifier is implemented and experimentally characterized. Furthermore, a medium-low resolution reference-free high-speed time-interleaved pipeline ADC employing all mentioned design techniques and circuits is presented, implemented and experimentally characterized. This ADC is said to be reference-free because it precludes any reference voltage, therefore saving power and area, as reference circuits are not necessary. Experimental results demonstrate the potential of the techniques which enabled the implementation of area and power efficient circuits.

Describes various design techniques to enhance the power and area efficiency of building blocks for multiplying digital-to-analog converter (MDAC) based ADCs, such as Pipeline, Algorithmic, and multi-step Flash;

Enables analog designers to enhance the performance of a range of circuits, without employing any type of digital assistance (calibration);

Includes complete design flow of an ADC based on the proposed circuits and design techniques.

Authors and affiliations

  • Michael Figueiredo
    • 1
  • João Goes
    • 2
  • Guiomar Evans
    • 3
  1. 1., Centre of Technology and SystemsUniversidade Nova de LisboaCaparicaPortugal
  2. 2., Department of Electrical EngineeringUniversidade Nova de LisboaCaparicaPortugal
  3. 3.Faculdade de Ciências, Departamento de FísicaUniversidade de LisboaLisbonPortugal

Bibliographic information

  • DOI
  • Copyright Information Springer Science+Business Media New York 2013
  • Publisher Name Springer, New York, NY
  • eBook Packages Engineering
  • Print ISBN 978-1-4614-3466-5
  • Online ISBN 978-1-4614-3467-2
  • Buy this book on publisher's site
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