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Data Conversion Handbook (Analog Devices) 1st Edition
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Top Customer Reviews
In a digital world, A/D and D/A conversion is essential to translate between analog real-world physical variables and the abstract 1s and 0s of digital processing. The book's nine chapter titles offer a hint of its breadth, as well as its orientation to practical designing with and use of converters: Data-converter history; Fundamentals of sampled-data systems; Data-converter architectures; Data-converter process technology; Testing data converters; Interfacing to data converters; Data-converter support circuits; Data-converter applications; and Hardware design techniques.
The first chapter, data-converter history, starts with the early 18th-century background in hydraulic water-metering systems in the Ottoman empire, then-when electricity came into use-from the 19th century telegraph era through the 1950s. The chapter then covers progress-decade-by-decade-in technology, circuitry, and applications of converters during the late 20th and early 21st centuries. Where relevant, historical contexts are also noted in some of the later chapters.
The second chapter, fundamentals of sampled-data systems, sets the stage for hardware design-discussing coding and quantizing, sampling theory, data-converter ac errors, general data-converter specifications, and definitions of specifications.
Chapter 3, data-converter architectures, discusses DAC architectures, ADC architectures, and sigma-delta converters. Although it concentrates on the most popular designs, it seeks not to neglect any significant approach. For example, among DACs it discusses the Kelvin divider (string DACs), thermometer (fully decoded DACs), binary-weighted DACs, R-2R DACs, segmented DACs, oversampling interpolating DACs, multiplying DACs, intentionally nonlinear DACs, counting pulsewidth-modulated (PWM) DACs, cyclic serial DACs, and "other low-distortion architectures"-and naturally, the sigma-delta converter section includes sigma-delta DACs.
The fourth chapter covers a wide range of data-converter process technologies, from the early vacuum-tube converters, through solid-state modular and hybrid converters, to bipolar, complementary-bipolar (CB), and CMOS integrated-circuit processes. Also covered are thin-film resistor and calibration processes; and there is a section on smart partitioning: optimizing performance, space, and cost by intelligent choice of process partitioning within a package.
Chapter 5 provides in-depth discussions of a wide variety of testing techniques for static and dynamic performance characteristics of DACs and ADCs. The following chapter, interfacing to data converters, has a major section devoted to analog interface considerations in driving ADC inputs. Other sections in this chapter include ADC and DAC digital interfaces (and related issues), buffering DAC analog outputs, data-converter voltage references, and sampling-clock generation.
Chapter 7, data-converter support circuits, discusses in depth such important analog auxiliary circuits as voltage references; low-dropout (LDO) linear regulator circuits; analog-, digital-, and video switches (including cross-point types) and multiplexers; and sample (track)-and-hold circuits.
The foregoing chapters, some 60% of the book, amount to a virtual appetizer for the banquet of tutorial material in the last two chapters: data-converter applications (Chapter 8) and hardware design techniques (Chapter 9). These two chapters amount to a practical course on design solutions and techniques that can enrich the portfolio of any designer, from the technician and recent graduate to the hardened systems engineer.
The wide-ranging coverage in Chapter 8 is apportioned among eight topics: precision measurement and sensor conditioning, multichannel data-acquisition systems, digital potentiometers, digital audio, digital video and display electronics, software radio and IF sampling, direct digital synthesis, and precision analog microcontrollers.
Finally, Chapter 9's 185 pages are in themselves essentially a textbook for the hardware designer. Its eight topical areas are labeled: passive components, pc-board design issues, analog power-supply systems, overvoltage protection, thermal management, EMI/RFI considerations, low-voltage logic interfacing, and breadboarding & prototyping. Chapter 9 is followed by a comprehensive subject index and an indexed listing of Analog Devices products mentioned in the book.
This book will be a valuable addition to the library of the student, the practicing circuit design engineer and technician, and anyone else who needs a good practical grasp of what is needed for a successful marriage between the analog and digital worlds.
[i] Full disclosure: Dan Sheingold also wrote a Foreword for the book (page xvii).
Daniel Valuch, RF engineer, CERN, Geneva, Switzerland.
Plenti of pictures, schematics and diagrams, is written in the clear style as Analog Devices is used to do.
I think is the best book I never saw in this topic