Systematic Design of Sigma-Delta Analog-to-Digital Converters

1. Front Matter

   Pages i-xi

   PDF

2. Introduction

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 1-7

3. Architecture-Level Analysis of Sigma-Delta ADCs

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 9-42

4. Discrete-Time Circuit Design

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 43-73

5. Continuous-Time Circuit Design

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 75-96

6. Computer Aided Design of Sigma-Delta ADCs

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 97-120

7. Sigma-Delta ADC for Audio Applications

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 121-141

8. Broadband, High Dynamic Range Sigma-Delta ADC

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 143-183

9. Summary

   • Ovidiu Bajdechi, Johan H. Huijsing

   Pages 185-189

10. Back Matter

    Pages 190-196

    PDF

Systematic Design of Sigma-Delta Analog-to-Digital Converters describes the issues related to the sigma-delta analog-to-digital converters (ADCs) design in a systematic manner: from the top level of abstraction represented by the filters defining signal and noise transfer functions (STF, NTF), passing through the architecture level where topology-related performance is calculated and simulated, and finally down to parameters of circuit elements like resistors, capacitors, and amplifier transconductances used in individual integrators. The systematic approach allows the evaluation of different loop filters (order, aggressiveness, discrete-time or continuous-time implementation) with quantizers varying in resolution. Topologies explored range from simple single loops to multiple cascaded loops with complex structures including more feedbacks and feedforwards. For differential circuits, with switched-capacitor integrators for discrete-time (DT) loop filters and active-RC for continuous-time (CT) ones, the passive integrator components are calculated and the power consumption is estimated, based on top-level requirements like harmonic distortion and noise budget.
This unified, systematic approach to choosing the best sigma-delta ADC implementation for a given design target yields an interesting solution for a high-resolution, broadband (DSL-like) ADC operated at low oversampling ratio, which is detailed down to transistor-level schematics.
The target audience of Systematic Design of Sigma-Delta Analog-to-Digital Converters are engineers designing sigma-delta ADCs and/or switched-capacitor and continuous-time filters, both beginners and experienced. It is also intended for students/academics involved in sigma-delta and analog CAD research.

• CAD
• Transistor
• architecture
• circuit design
• computer-aided design (CAD)
• consumption
• filter
• integrated circuit
• optimization
• simulation

• Broadcom Netherlands B. V., Bunnik, The Netherlands

  Ovidiu Bajdechi

• Delft University of Technology, Delft, The Netherlands

  Johan H. Huijsing

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