1. Introduction. 2. Oversampling Sigma-Delta A/D Converters: Basic Concepts and State of the Art. 3. Modeling of Error Mechanisms in Sigma-Delta Modulators. 4. Behavioral Simulation of Sigma-Delta Modulators. 5. SDOPT+FRIDGE: Tools for the Automatic Design of Sigma-Delta Modulators. 6. Integrated Circuit Design (I): A 17-bit 40k Sample/s Fourth-Order Cascade Sigma-Delta Modulator. 7. Integrated Circuit Design (II): A 13-bit 2.2MSample/s Fourth-Order Cascade Multi-Bit Sigma-Delta Modulator. References. Appendix. Index.