Switched-Current Design and Implementation of Oversampling A/D Converters, 1997 The Springer International Series in Engineering and Computer Science Series, Vol. 412

Switched-Current Design and Implementation of Oversampling A/DConverters discusses the switched-current (SI) technique and its application in oversampling A/D converters design. The SI technique is an analog sampled-data technique that fully exploits the digital CMOS process. Compared with the traditional switched-capacitor (SC) technique, the SI technique has both pros and cons that are highlighted in the book. With the consideration of similarity and difference of SI and SC techniques, oversampling A/D converter architectures are tailored and optimized for SI design and implementation in the book.
Switched-Current Design and Implementation of Oversampling A/DConverters emphasizes the practical aspects of SI circuits without tedious mathematical derivations, and is full of circuit design and implementation examples. There are more than 10 different chips included in the book, demonstrating the high-speed (over 100 MHz) and ultra-low-voltage (1.2 V) operation of SI circuits and systems in standard digital CMOS processes. Therefore, the book is of special value as a practical guide for designing SI circuits and SI oversampling A/D converters.
Switched-Current Design and Implementation of Oversampling A/DConverters serves as an excellent reference for analog designers, especially A/D converter designers, and is of interest to digital designers for real-time signal processing who need A/D interfaces. The book may also be used as a text for advanced courses on the subject.

I: Basics of the SI Technique.- 1.1. Principle of the SI technique.- 1.2. Comparison of the SI and SC techniques.- 1.3. Summary.- II: Nonidealities in SI Circuits.- 2.1. Introduction.- 2.2. Mismatch errors.- 2.3. Finite input-output conductance ratio errors.- 2.4. Settling errors.- 2.5. Clock feedthrough errors.- 2.6. Drain-gate parasitic capacitive coupling errors.- 2.7. Noise.- 2.8. Summary.- III: Practical SI Circuits.- 3.1. Introduction.- 3.2. First-generation SI circuits with clock feedthrough compensated.- 3.3. Low-voltage fully-differential SI circuits.- 3.4. From CMFB to CMFF.- 3.5. Fully-differential class-AB SI circuits.- 3.6. High speed SI circuits.- 3.7. Ultra low-voltage SI circuits.- 3.8. Two-step SI circuits.- 3.9. SI technique in BiCMOS.- 3.10. Other existing SI techniques.- 3.11. Summary.- IV: System Design of SI Delta-Sigma Modulators.- 4.1. Introduction.- 4.2. Similarity and difference of SC and SI implementation.- 4.3. Second-order SI delta-sigma modulators.- 4.4. Two-stage fourth-order SI delta-sigma modulator.- 4.5. Single-stage fourth-order SI delta-sigma modulator.- 4.6. Chopper-stabilized SI delta-sigma modulator.- 4.7. Current scaling technique for SI delta-sigma modulators.- 4.8. Summary.- V: Building Blocks for SI Oversampling A/D Converters.- 5.1. Introduction.- 5.2. SI integrators.- 5.3. SI differentiators.- 5.4. Current quantizers.- 5.5. One-bit D/A converters.- 5.6. Clock generators.- 5.7. Voltage-to-current converters.- 5.8. Low-cost on-chip filters for SI oversampling A/D converters.- 5.9. Digital decimation filters.- 5.10. Other auxiliary circuits.- 5.11. Summary.- VI: Practical Aspects of SI Circuits and Systems.- 6.1. Introduction.- 6.2. Simulation setup.- 6.3. Clocking.- 6.4. Loading.- 6.5. Resetting.- 6.6. Basic analog layout.- 6.7. Mixed analog-digital layout.- 6.8. Summary.- VII: Implementation and Measurement of SI Oversampling A/D Converters.- 7.1. Introduction.- 7.2. Measurement setup.- 7.3. Second-order SI delta-sigma modulators.- 7.4. Two-stage fourth-order SI delta-sigma modulators.- 7.5. Chopper-stabilized SI delta-sigma modulator.- 7.6. Comparison with theoretical expectations.- 7.7. Comparison with SC implementations.- 7.8. Summary.- VIII: Conclusions.- References.

This book discusses the switched-current (SI) technique and its application to oversampling A/D converters design. With the consideration of similarity and difference of SI and SC (Switched Capacitor) techniques, oversampling A/D converter architectures are tailored and optimized for SI design and implementation in the book. It emphasizes the practical aspects of SI circuits without tedious mathematical derivations, and is full of circuit design and implementation examples. There are more than 10 different chips included in the book, demonstrating the high-speed (over 100 MHz) and ultra-low-voltage (1.2 V) operation of SI circuits and systems in standard digital CMOS processes.