The Design of Low-Voltage, Low-Power Sigma-Delta Modulators

  • Shahriar Rabii
  • Bruce A. Wooley

Part of the The Kluwer International Series in Engineering and Computer Science book series (SECS, volume 483)

Table of contents

  1. Front Matter
    Pages i-xviii
  2. Shahriar Rabii, Bruce A. Wooley
    Pages 1-5
  3. Shahriar Rabii, Bruce A. Wooley
    Pages 7-20
  4. Shahriar Rabii, Bruce A. Wooley
    Pages 21-55
  5. Shahriar Rabii, Bruce A. Wooley
    Pages 57-78
  6. Shahriar Rabii, Bruce A. Wooley
    Pages 79-113
  7. Shahriar Rabii, Bruce A. Wooley
    Pages 115-149
  8. Shahriar Rabii, Bruce A. Wooley
    Pages 151-153
  9. Back Matter
    Pages 155-187

About this book

Introduction

Oversampling techniques based on sigma-delta modulation are widely used to implement the analog/digital interfaces in CMOS VLSI technologies. This approach is relatively insensitive to imperfections in the manufacturing process and offers numerous advantages for the realization of high-resolution analog-to-digital (A/D) converters in the low-voltage environment that is increasingly demanded by advanced VLSI technologies and by portable electronic systems. In The Design of Low-Voltage, Low-Power Sigma-Delta Modulators, an analysis of power dissipation in sigma-delta modulators is presented, and a low-voltage implementation of a digital-audio performance A/D converter based on the results of this analysis is described.
Although significant power savings can typically be achieved in digital circuits by reducing the power supply voltage, the power dissipation in analog circuits actually tends to increase with decreasing supply voltages. Oversampling architectures are a potentially power-efficient means of implementing high-resolution A/D converters because they reduce the number and complexity of the analog circuits in comparison with Nyquist-rate converters. In fact, it is shown that the power dissipation of a sigma-delta modulator can approach that of a single integrator with the resolution and bandwidth required for a given application. In this research the influence of various parameters on the power dissipation of the modulator has been evaluated and strategies for the design of a power-efficient implementation have been identified.
The Design of Low-Voltage, Low-Power Sigma-Delta Modulators begins with an overview of A/D conversion, emphasizing sigma-delta modulators. It includes a detailed analysis of noise in sigma-delta modulators, analyzes power dissipation in integrator circuits, and addresses practical issues in the circuit design and testing of a high-resolution modulator.
The Design of Low-Voltage, Low-Power Sigma-Delta Modulators will be of interest to practicing engineers and researchers in the areas of mixed-signal and analog integrated circuit design.

Keywords

CMOS Modulation Potential Signal VLSI analog architecture circuit design complexity integrated circuit manufacturing testing

Authors and affiliations

  • Shahriar Rabii
    • 1
  • Bruce A. Wooley
    • 2
  1. 1.Level One CommunicationsUSA
  2. 2.Stanford UniversityUSA

Bibliographic information

  • DOI https://doi.org/10.1007/978-1-4615-5105-8
  • Copyright Information Kluwer Academic Publishers 1999
  • Publisher Name Springer, Boston, MA
  • eBook Packages Springer Book Archive
  • Print ISBN 978-1-4613-7322-3
  • Online ISBN 978-1-4615-5105-8
  • Series Print ISSN 0893-3405
  • About this book