High Speed and Wide Bandwidth Delta-Sigma ADCs

This book describes techniques for realizing wide bandwidth (125MHz) over-sampled analog-to-digital converters (ADCs) in nano meter-CMOS processes. The authors offer a clear and complete picture of system level challenges and practical design solutions in high-speed Delta-Sigma modulators. Readers will be enabled to implement ADCs as continuous-time delta-sigma (CT) modulators, offering simple resistive inputs, which do not require the use of power-hungry input buffers, as well as offering inherent anti-aliasing, which simplifies system integration. The authors focus on the design of high speed and wide-bandwidth Ms that make a step in bandwidth range which was previously only possible with Nyquist converters. More specifically, this book describes the stability, power efficiency and linearity limits of Ms, aiming at a GHz sampling frequency.

Provides overview of trends in Wide Bandwidth and High Dynamic Range analog-to-digital converters (ADCs) Enables the design of a wide bandwidth, high dynamic range modulator with state-of-the-art power efficiency Includes introduction to Continuous-Time Delta-Sigma Modulators and its system level modeling Explains issues relating to stability of Continuous-Time Delta-Sigma Modulators Includes discussion of system level non-idealities in Continuous-Time Delta-Sigma Modulators System level design of CT?S modulators at GHz sampling frequencies Practical implementation details of high speed CT?S ADCs Overview of static and dynamic error correction techniques in ?S ADCs Dynamic error correction techniques that are suitable for high speed CT?S ADCs Includes supplementary material: sn.pub/extras

Inhalt
Introduction.- Continuous-Time Delta-Sigma Modulator.- Continuous-Time Delta-Sigma Modulators at High Sampling Rates.- A 4GHz Continuous-Time ADC.- A 2GHz Continuous-Time ADC with Dynamic Error Correction.- Conclusions.- Appendices.