Analog-to-Digital Conversion

Written as a course text for graduate students and as a current reference for working engineers, this volume walks through the core methods used to convert analog signals into digital form. Its chapters cover sampling, quantization, the generation of reference voltages, Nyquist-rate architectures, and sigma-delta modulation. The recurring concern is how to raise accuracy and speed while keeping power consumption low.

This second edition brings the material up to date with newer calibration techniques, the demands of recent system designs, and the effects of 45-nm CMOS processes, with a first look at metal-gate 28-nm results. The author argues that accuracy should be treated statistically, both to predict when a circuit will fail and to estimate design yield. The edition contains more than twice as many exercises as the first, along with worked examples that introduce each new idea and notes drawn from practical experience.

The book also covers the hands-on side of the work: printed circuit board design, layout considerations, and system-level trade-offs. Extended examples show how to choose parameters for an amplifier, a track-and-hold circuit, a full-flash converter, a conversion stage, or a filter within a sigma-delta modulator.