Ultra-Low-Voltage Frequency Synthesizer and Successive-Approximation Analog-to-Digital Converter for Biomedical Applications

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Publisher : Springer Nature
ISBN 13 : 3030888452
Total Pages : 231 pages
Book Rating : 4.0/5 (38 download)

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Book Synopsis Ultra-Low-Voltage Frequency Synthesizer and Successive-Approximation Analog-to-Digital Converter for Biomedical Applications by : Chung-Chih Hung

Download or read book Ultra-Low-Voltage Frequency Synthesizer and Successive-Approximation Analog-to-Digital Converter for Biomedical Applications written by Chung-Chih Hung and published by Springer Nature. This book was released on 2021-12-07 with total page 231 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book introduces the origin of biomedical signals and the operating principles behind them and introduces the characteristics of common biomedical signals for subsequent signal measurement and judgment. Since biomedical signals are captured by wearable devices, sensor devices, or implanted devices, these devices are all battery-powered to maintain long working time. We hope to reduce their power consumption to extend service life, especially for implantable devices, because battery replacement can only be done through surgery. Therefore, we must understand how to design low-power integrated circuits. Both implantable and in-vitro medical signal detectors require two basic components to collect and transmit biomedical signals: an analog-to-digital converter and a frequency synthesizer because these measured biomedical signals are wirelessly transmitted to the relevant receiving unit. The core unit of wireless transmission is the frequency synthesizer, which provides a wide frequency range and stable frequency to demonstrate the quality and performance of the wireless transmitter. Therefore, the basic operating principle and model of the frequency synthesizer are introduced. We also show design examples and measurement results of a low-power low-voltage integer-N frequency synthesizer for biomedical applications. The detection of biomedical signals needs to be converted into digital signals by an analog-to-digital converter to facilitate subsequent signal processing and recognition. Therefore, the operating principle of the analog-to-digital converter is introduced. We also show implementation examples and measurement results of low-power low-voltage analog-to-digital converters for biomedical applications.

Current-mode Analog-to-digital Converter for Array Implementation

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Publisher :
ISBN 13 : 9783896498854
Total Pages : 198 pages
Book Rating : 4.4/5 (988 download)

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Book Synopsis Current-mode Analog-to-digital Converter for Array Implementation by : Markus Uster

Download or read book Current-mode Analog-to-digital Converter for Array Implementation written by Markus Uster and published by . This book was released on 2003 with total page 198 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Time-interleaved Analog-to-Digital Converters

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 9048197163
Total Pages : 148 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Time-interleaved Analog-to-Digital Converters by : Simon Louwsma

Download or read book Time-interleaved Analog-to-Digital Converters written by Simon Louwsma and published by Springer Science & Business Media. This book was released on 2010-09-08 with total page 148 pages. Available in PDF, EPUB and Kindle. Book excerpt: Time-interleaved Analog-to-Digital Converters describes the research performed on low-power time-interleaved ADCs. A detailed theoretical analysis is made of the time-interleaved Track & Hold, since it must be capable of handling signals in the GHz range with little distortion, and minimal power consumption. Timing calibration is not attractive, therefore design techniques are presented which do not require timing calibration. The design of power efficient sub-ADCs is addressed with a theoretical analysis of a successive approximation converter and a pipeline converter. It turns out that the first can consume about 10 times less power than the latter, and this conclusion is supported by literature. Time-interleaved Analog-to-Digital Converters describes the design of a high performance time-interleaved ADC, with much attention for practical design aspects, aiming at both industry and research. Measurements show best-inclass performance with a sample-rate of 1.8 GS/s, 7.9 ENOBs and a power efficiency of 1 pJ/conversion-step.

High-Speed Analog-to-Digital Conversion

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Author :
Publisher : Elsevier
ISBN 13 : 0080508138
Total Pages : 233 pages
Book Rating : 4.0/5 (85 download)

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Book Synopsis High-Speed Analog-to-Digital Conversion by : Michael J. Demler

Download or read book High-Speed Analog-to-Digital Conversion written by Michael J. Demler and published by Elsevier. This book was released on 2012-12-02 with total page 233 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the theory and applications of high-speed analog-to-digital conversion. An analog-to-digital converter takes real-world inputs (such as visual images, temperature readings, and rates of speed) and transforms them into digital form for processing by computer. This book discusses the design and uses of such circuits, with particular emphasis on improving the speed of the conversion process and the accuracy of its output--how well the output is a corresponding digital representation of the output*b1input signal. As computers become increasingly interfaced to the outside world, "ADC" techniques will become ever more important.

Analog-Digital Converters for Industrial Applications Including an Introduction to Digital-Analog Converters

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Author :
Publisher : Springer
ISBN 13 : 3662470209
Total Pages : 340 pages
Book Rating : 4.6/5 (624 download)

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Book Synopsis Analog-Digital Converters for Industrial Applications Including an Introduction to Digital-Analog Converters by : Frank Ohnhäuser

Download or read book Analog-Digital Converters for Industrial Applications Including an Introduction to Digital-Analog Converters written by Frank Ohnhäuser and published by Springer. This book was released on 2015-07-01 with total page 340 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers students and those new to the topic of analog-to-digital converters (ADCs) a broad introduction, before going into details of the state-of-the-art design techniques for SAR and DS converters, including the latest research topics, which are valuable for IC design engineers as well as users of ADCs in applications. The book then addresses important topics, such as correct connectivity of ADCs in an application, the verification, characterization and testing of ADCs that ensure high-quality end products. Analog-to-digital converters are the central element in any data processing system and regulation loops such as modems or electrical motor drives. They significantly affect the performance and resolution of a system or end product. System development engineers need to be familiar with the performance parameters of the converters and understand the advantages and disadvantages of the various architectures. Integrated circuit development engineers have to overcome the problem of achieving high performance and resolution with the lowest possible power dissipation, while the digital circuitry generates distortion in supply, ground and substrate. This book explains the connections and gives suggestions for obtaining the highest possible resolution. Novel trends are illustrated in the design of analog-to-digital converters based on successive approximation and the difficulties in the development of continuous-time delta-sigma modulators are also discussed.

Reference-Free CMOS Pipeline Analog-to-Digital Converters

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Author :
Publisher : Springer Science & Business Media
ISBN 13 : 146143467X
Total Pages : 189 pages
Book Rating : 4.4/5 (614 download)

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Book Synopsis Reference-Free CMOS Pipeline Analog-to-Digital Converters by : Michael Figueiredo

Download or read book Reference-Free CMOS Pipeline Analog-to-Digital Converters written by Michael Figueiredo and published by Springer Science & Business Media. This book was released on 2012-08-24 with total page 189 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book shows that digitally assisted analog to digital converters are not the only way to cope with poor analog performance caused by technology scaling. It describes various analog design techniques that enhance the area and power efficiency without employing any type of digital calibration circuitry. These techniques consist of self-biasing for PVT enhancement, inverter-based design for improved speed/power ratio, gain-of-two obtained by voltage sum instead of charge redistribution, and current-mode reference shifting instead of voltage reference shifting. Together, these techniques allow enhancing the area and power efficiency of the main building blocks of a multiplying digital-to-analog converter (MDAC) based stage, namely, the flash quantizer, the amplifier, and the switched capacitor network of the MDAC. Complementing the theoretical analyses of the various techniques, a power efficient operational transconductance amplifier is implemented and experimentally characterized. Furthermore, a medium-low resolution reference-free high-speed time-interleaved pipeline ADC employing all mentioned design techniques and circuits is presented, implemented and experimentally characterized. This ADC is said to be reference-free because it precludes any reference voltage, therefore saving power and area, as reference circuits are not necessary. Experimental results demonstrate the potential of the techniques which enabled the implementation of area and power efficient circuits.

Smart and Flexible Digital-to-Analog Converters

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Publisher : Springer Science & Business Media
ISBN 13 : 9400703473
Total Pages : 302 pages
Book Rating : 4.4/5 (7 download)

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Book Synopsis Smart and Flexible Digital-to-Analog Converters by : Georgi Radulov

Download or read book Smart and Flexible Digital-to-Analog Converters written by Georgi Radulov and published by Springer Science & Business Media. This book was released on 2011-01-07 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt: Smart and Flexible Digital-to-Analog Converters proposes new concepts and implementations for flexibility and self-correction of current-steering digital-to-analog converters (DACs) which allow the attainment of a wide range of functional and performance specifications, with a much reduced dependence on the fabrication process. DAC linearity is analysed with respect to the accuracy of the DAC unit elements. A classification is proposed of the many different current-steering DAC correction methods. The classification reveals methods that do not yet exist in the open literature. Further, this book systematically analyses self-calibration correction methods for the various DAC mismatch errors. For instance, efficient calibration of DAC binary currents is identified as an important missing method. This book goes on to propose a new methodology for correcting mismatch errors of both nominally identical unary as well as scaled binary DAC currents. A new concept for DAC flexibility is presented. The associated architecture is based on a modular design approach that uses parallel sub-DAC units to realize flexible design, functionality and performance. Two main concepts, self-calibration and flexibility, are demonstrated in practice using three DAC testchips in 250nm, 180nm and 40nm standard CMOS. Smart and Flexible Digital-to-Analog Converters will be useful to both advanced professionals and newcomers in the field. Advanced professionals will find new methods that are fully elaborated from analysis at conceptual level to measurement results at test-chip level. New comers in the field will find structured knowledge of fully referenced state-of-the art methods with many fully explained novelties.“/p> DAC linearity is analysed with respect to the accuracy of the DAC unit elements. A classification is proposed of the many different current-steering DAC correction methods. The classification reveals methods that do not yet exist in the open literature. Further, this book systematically analyses self-calibration correction methods for the various DAC mismatch errors. For instance, efficient calibration of DAC binary currents is identified as an important missing method. This book goes on to propose a new methodology for correcting mismatch errors of both nominally identical unary as well as scaled binary DAC currents. A new concept for DAC flexibility is presented. The associated architecture is based on a modular design approach that uses parallel sub-DAC units to realize flexible design, functionality and performance. Two main concepts, self-calibration and flexibility, are demonstrated in practice using three DAC testchips in 250nm, 180nm and 40nm standard CMOS. Smart and Flexible Digital-to-Analog Converters will be useful to both advanced professionals and newcomers in the field. Advanced professionals will find new methods that are fully elaborated from analysis at conceptual level to measurement results at test-chip level. New comers in the field will find structured knowledge of fully referenced state-of-the art methods with many fully explained novelties. This book goes on to propose a new methodology for correcting mismatch errors of both nominally identical unary as well as scaled binary DAC currents. A new concept for DAC flexibility is presented. The associated architecture is based on a modular design approach that uses parallel sub-DAC units to realize flexible design, functionality and performance. Two main concepts, self-calibration and flexibility, are demonstrated in practice using three DAC testchips in 250nm, 180nm and 40nm standard CMOS. Smart and Flexible Digital-to-Analog Converters will be useful to both advanced professionals and newcomers in the field. Advanced professionals will find new methods that are fully elaborated from analysis at conceptual level to measurement results at test-chip level. New comers in the field will find structured knowledge of fully referenced state-of-the art methods with many fully explained novelties. Two main concepts, self-calibration and flexibility, are demonstrated in practice using three DAC testchips in 250nm, 180nm and 40nm standard CMOS. Smart and Flexible Digital-to-Analog Converters will be useful to both advanced professionals and newcomers in the field. Advanced professionals will find new methods that are fully elaborated from analysis at conceptual level to measurement results at test-chip level. New comers in the field will find structured knowledge of fully referenced state-of-the art methods with many fully explained novelties.

Analog-digital Conversion Notes

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Publisher :
ISBN 13 :
Total Pages : 266 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Analog-digital Conversion Notes by : Analog Devices, inc

Download or read book Analog-digital Conversion Notes written by Analog Devices, inc and published by . This book was released on 1977 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This 1977 seminar edition is the first major revision of material previously published in the highly successful Analog-Digital Conversion Handbook, first published by Analog Devices, Inc.in 1972 and reprinted in 1976. This volume contains parts I and II of that book, updated wherever specific converted products are referred to, in order to reflect the revolution in cost, size and (in some cases) performance brought about by the development of converters in integrated-circuit and hybrid form. Two entirely new chapters have been added to further reflect changes in the structure of the technological marketplace brough about by the availability of both converters and computers as true components. Chapter II-2 is a consideration of the relationship between processes, configurations, and performance in miniature low-cost converters. Chapter I-4 considers the application of converters with parallel and serial digital interfaces, microcomputers, asynchronous serial data posts, and proprietary integrated data-conversion-subsystem architectures - a natural sequel to the wide-ranging discussion of system considerations in other chapters."--Page i.

Analog-to-Digital Conversion

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Publisher : Springer Science & Business Media
ISBN 13 : 9048188881
Total Pages : 469 pages
Book Rating : 4.0/5 (481 download)

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Book Synopsis Analog-to-Digital Conversion by : Marcel J.M. Pelgrom

Download or read book Analog-to-Digital Conversion written by Marcel J.M. Pelgrom and published by Springer Science & Business Media. This book was released on 2010-07-24 with total page 469 pages. Available in PDF, EPUB and Kindle. Book excerpt: A book is like a window that allows you to look into the world. The window is shaped by the author and that makes that every window presents a unique view of the world. This is certainly true for this book. It is shaped by the topics and the projects throughout my career. Even more so, this book re?ects my own style of working and thinking. That starts already in Chap. 2. When I joined Philips Research in 1979, many of my colleagues used little paper notebooks to keep track of the most used equations and other practical things. This notebook was the beginning for Chap. 2: a collection of topics that form the basis for much of the other chapters. Chapter2 is not intended to explain these topics, but to refresh your knowledge and help you when you need some basics to solve more complex issues. In the chapters discussing the fundamental processes of conversion, you will r- ognize my preoccupation with mathematics. I really enjoy ?nding an equation that properly describes the underlying mechanism. Nevertheless mathematics is not a goalonitsown:theequationshelptounderstandthewaythevariablesareconnected to the result. Real insight comes from understanding the physics and electronics. In the chapters on circuit design I have tried to reduce the circuit diagrams to the s- plest form, but not simpler. . . I do have private opinions on what works and what should not be applied.

CMOS Data Converters for Communications

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Publisher : Springer Science & Business Media
ISBN 13 : 0306473054
Total Pages : 394 pages
Book Rating : 4.3/5 (64 download)

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Book Synopsis CMOS Data Converters for Communications by : Mikael Gustavsson

Download or read book CMOS Data Converters for Communications written by Mikael Gustavsson and published by Springer Science & Business Media. This book was released on 2005-12-15 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt: CMOS Data Converters for Communications distinguishes itself from other data converter books by emphasizing system-related aspects of the design and frequency-domain measures. It explains in detail how to derive data converter requirements for a given communication system (baseband, passband, and multi-carrier systems). The authors also review CMOS data converter architectures and discuss their suitability for communications. The rest of the book is dedicated to high-performance CMOS data converter architecture and circuit design. Pipelined ADCs, parallel ADCs with an improved passive sampling technique, and oversampling ADCs are the focus for ADC architectures, while current-steering DAC modeling and implementation are the focus for DAC architectures. The principles of the switched-current and the switched-capacitor techniques are reviewed and their applications to crucial functional blocks such as multiplying DACs and integrators are detailed. The book outlines the design of the basic building blocks such as operational amplifiers, comparators, and reference generators with emphasis on the practical aspects. To operate analog circuits at a reduced supply voltage, special circuit techniques are needed. Low-voltage techniques are also discussed in this book. CMOS Data Converters for Communications can be used as a reference book by analog circuit designers to understand the data converter requirements for communication applications. It can also be used by telecommunication system designers to understand the difficulties of certain performance requirements on data converters. It is also an excellent resource to prepare analog students for the new challenges ahead.

Microcomputer-Analog Converter Software and Hardware Interfacing

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Publisher :
ISBN 13 :
Total Pages : 294 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis Microcomputer-Analog Converter Software and Hardware Interfacing by : Jonathan A. Titus

Download or read book Microcomputer-Analog Converter Software and Hardware Interfacing written by Jonathan A. Titus and published by . This book was released on 1978 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Analog-digital Conversion Handbook

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Publisher :
ISBN 13 :
Total Pages : 404 pages
Book Rating : 4.3/5 (97 download)

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Book Synopsis Analog-digital Conversion Handbook by : Analog Devices, inc

Download or read book Analog-digital Conversion Handbook written by Analog Devices, inc and published by . This book was released on 1972 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:

The Bugbook VII

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Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis The Bugbook VII by : Jonathan A. Titus

Download or read book The Bugbook VII written by Jonathan A. Titus and published by . This book was released on 1978 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advanced Analog-to-Digital and Digital-to-Analog Convertors

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Publisher : Springer
ISBN 13 : 9780387710532
Total Pages : 0 pages
Book Rating : 4.7/5 (15 download)

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Book Synopsis Advanced Analog-to-Digital and Digital-to-Analog Convertors by : Hae-Seung (Harry) Lee

Download or read book Advanced Analog-to-Digital and Digital-to-Analog Convertors written by Hae-Seung (Harry) Lee and published by Springer. This book was released on 2010-12-15 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book offers innovative techniques from a research group that has shaped the evolution of analog-to-digital converter design for two decades. It reviews creative approaches across a number of technologies. Coverage includes popular architectures such as pipeline, delta-sigma, successive-approximation, flash and algorithmic converters. The book explores architectural techniques for reducing power consumption and improving linearity and signal-to-noise ratio. These include self-calibration, commutative feedback and mismatch-shaping techniques.

Wide-Bandwidth High Dynamic Range D/A Converters

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Publisher : Springer Science & Business Media
ISBN 13 : 9780387304151
Total Pages : 230 pages
Book Rating : 4.3/5 (41 download)

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Book Synopsis Wide-Bandwidth High Dynamic Range D/A Converters by : Konstantinos Doris

Download or read book Wide-Bandwidth High Dynamic Range D/A Converters written by Konstantinos Doris and published by Springer Science & Business Media. This book was released on 2006-03-07 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wide-bandwidth high dynamic range Digital to Analog Converters (D/A) are essential elements of modern systems, e.g. multi-carrier communication systems. Current Steering D/A converters offer the potential to achieve high dynamic range for wide frequency bandwidths, however, their performance at higher frequencies is usually limited by strong nonlinear behavior. This behavior is not well understood and impedes performance progress. Wide-Bandwidth High Dynamic Range D/A Converters presents a structured description of the operation principles and the nonlinear behavior of Current Steering D/A Converters, and shows ways to deal with it in the design phase. The book provides the reader a thorough understanding of error mechanisms at high frequencies. It explains their effects and shows their dependencies with parameters of the processed signal, the architecture, its circuit blocks and their implementations. A highlight of the book is the detailed treatment of timing errors caused by circuit imperfections due to process mismatch and clock interconnects. The book follows a unique approach, building an analysis and synthesis framework of concepts with a generic scope beyond the current steering architecture. The concepts are tested in practice with the design and measurements of a high performance 12b 500MSample/sec Current Steering Digital to Analog Converter realized in 0.18m m CMOS.

Data Conversion Integrated Circuits

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Publisher : Institute of Electrical & Electronics Engineers(IEEE)
ISBN 13 : 9780879421311
Total Pages : 308 pages
Book Rating : 4.4/5 (213 download)

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Book Synopsis Data Conversion Integrated Circuits by : Daniel J. Dooley

Download or read book Data Conversion Integrated Circuits written by Daniel J. Dooley and published by Institute of Electrical & Electronics Engineers(IEEE). This book was released on 1980 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Data Converters

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Publisher : John Wiley & Sons
ISBN 13 :
Total Pages : 260 pages
Book Rating : 4.3/5 (91 download)

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Book Synopsis Data Converters by : G. B. Clayton

Download or read book Data Converters written by G. B. Clayton and published by John Wiley & Sons. This book was released on 1982 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt: A complete guide to data converters—how they work, what they can do, how to select and use them. Provides knowledge of these devices which is elemental to understanding the important interface between analogue and digital systems. Discusses principles underlying the operation of data converters, converter applications, and procedures for implementing these applications. Covers signal sampling, acquisition systems, multiplexers, converter terminology, and data sheet specifications. An essential guide to anyone interested in modern electronic instrumentation.