Robust Sigma Delta Converters

Chapters 5 and 6 showed that a high order 1-bit highly over-sampled ΣΔ
modulator is a very suitable choice for the ADC in a direct conversion receiver.
The modulator can be made with sufficiently high S(Q)NR and linearity at low
power ...

Robust Sigma Delta Converters

Author: Robert H.M. van Veldhoven

Publisher: Springer Science & Business Media

ISBN: 9789400706446

Page: 296

View: 843

Sigma Delta converters are a very popular choice for the A/D converter in multi-standard, mobile and cellular receivers. Key A/D converter specifications are high dynamic range, robustness, scalability, low-power and low EMI. Robust Sigma Delta Converters presents a requirement derivation of a Sigma Delta modulator applied in a receiver for cellular and connectivity, and shows trade-offs between RF and ADC. The book proposes to categorize these requirements in 5 quality indicators which can be used to qualify a system, namely accuracy, robustness, flexibility, efficiency and emission. In the book these quality indicators are used to categorize Sigma Delta converter theory. A few highlights on each of these quality indicators are; Quality indicators: provide a means to quantify system quality. Accuracy: introduction of new Sigma Delta Modulator architectures. Robustness: a significant extension on clock jitter theory based on phase and error amplitude error models. Extension of the theory describing aliasing in Sigma Delta converters for different types of DACs in the feedback loop. Flexibility: introduction of a Sigma Delta converter bandwidth scaling theory leading to very flexible Sigma Delta converters. Efficiency: introduction of new Figure-of-Merits which better reflect performance-power trade-offs. Emission: analysis of Sigma Delta modulators on emission is not part of the book The quality indicators also reveal that, to exploit nowadays advanced IC technologies, things should be done as much as possible digital up to a limit where system optimization allows reducing system margins. At the end of the book Sigma Delta converter implementations are shown which are digitized on application-, architecture-, circuit- and layout-level. Robust Sigma Delta Converters is written under the assumption that the reader has some background in receivers and in A/D conversion.

Analog Circuit Design

This book is number 20 in this successful series of Analog Circuit Design, providing valuable information and excellent overviews of: Robust Design, chaired by Herman Casier, Consultant Sigma Delta Converters, chaired by Prof.

Analog Circuit Design

Author: Herman Casier

Publisher: Springer Science & Business Media

ISBN: 9789400703919

Page: 367

View: 979

Analog Circuit Design contains the contribution of 18 tutorials of the 19th workshop on Advances in Analog Circuit Design. Each part discusses a specific to-date topic on new and valuable design ideas in the area of analog circuit design. Each part is presented by six experts in that field and state of the art information is shared and overviewed. This book is number 20 in this successful series of Analog Circuit Design, providing valuable information and excellent overviews of: Robust Design, chaired by Herman Casier, Consultant Sigma Delta Converters, chaired by Prof. Michiel Steyaert, Catholic University Leuven RFID, chaired by Prof. Arthur van Roermund, Eindhoven University of Technology Analog Circuit Design is an essential reference source for analog circuit designers and researchers wishing to keep abreast with the latest development in the field. The tutorial coverage also makes it suitable for use in an advanced design course.

CMOS Sigma Delta Converters

[13] J. Cherry and W. Snelgrove, Continuous-Time Delta-Sigma Modulators for
HighSpeed A/D Conversion, Kluwer Academic ... [23] R. H. van Veldhoven and
A. H. M. van Roermund, Robust Sigma Delta Converters, Springer, 2011.

CMOS Sigma Delta Converters

Author: Jose M. de la Rosa

Publisher: John Wiley & Sons

ISBN: 1118568435

Page: 432

View: 235

A comprehensive overview of Sigma-Delta Analog-to-DigitalConverters (ADCs) and a practical guide to their design innano-scale CMOS for optimal performance. This book presents a systematic and comprehensive compilation ofsigma-delta converter operating principles, the new advances inarchitectures and circuits, design methodologies and practicalconsiderations − going from system-level specifications tosilicon integration, packaging and measurements, with emphasis onnanometer CMOS implementation. The book emphasizes practical designissues – from high-level behavioural modelling inMATLAB/SIMULINK, to circuit-level implementation in Cadence DesignFrameWork II. As well as being a comprehensive reference to thetheory, the book is also unique in that it gives special importanceon practical issues, giving a detailed description of the differentsteps that constitute the whole design flow of sigma-delta ADCs. The book begins with an introductory survey of sigma-deltamodulators, their fundamentals architectures and synthesis methodscovered in Chapter 1. In Chapter 2, the effect of main circuiterror mechanisms is analysed, providing the necessary understandingof the main practical issues affecting the performance ofsigma-delta modulators. The knowledge derived from the first twochapters is presented in the book as an essential part of thesystematic top-down/bottom-up synthesis methodology of sigma-deltamodulators described in Chapter 3, where a time-domain behaviouralsimulator named SIMSIDES is described and applied to the high-leveldesign and verification of sigma-delta ADCs. Chapter 4 movesfarther down from system-level to the circuit and physical level,providing a number of design recommendations and practical recipesto complete the design flow of sigma-delta modulators. To concludethe book, Chapter 5 gives an overview of the state-of-the-artsigma-delta ADCs, which are exhaustively analysed in order toextract practical design guidelines and to identify the incomingtrends, design challenges as well as practical solutions proposedby cutting-edge designs. Offers a complete survey of sigma-delta modulator architecturesfrom fundamentals to state-of-the art topologies, considering bothswitched-capacitor and continuous-time circuit implementations Gives a systematic analysis and practical design guide ofsigma-delta modulators, from a top-down/bottom-up perspective,including mathematical models and analytical procedures,behavioural modeling in MATLAB/SIMULINK, macromodeling, andcircuit-level implementation in Cadence Design FrameWork II, chipprototyping, and experimental characterization. Systematic compilation of cutting-edge sigma-deltamodulators Complete description of SIMSIDES, a time-domain behaviouralsimulator implemented in MATLAB/SIMULINK Plenty of examples, case studies, and simulation test benches,covering the different stages of the design flow of sigma-deltamodulators A number of electronic resources, including SIMSIDES, thestatistical data used in the state-of-the-art survey, as well asmany design examples and test benches are hosted on a companionwebsite Essential reading for Researchers and electronics engineeringpractitioners interested in the design of high-performance dataconverters integrated in nanometer CMOS technologies; mixed-signaldesigners.

Sigma Delta Converters Practical Design Guide

[14] V. Peluso, M. Steyaert, and W. Sansen, Design of Low Voltage Low Power
CMOS Delta Sigma A/D Converters. ... F. Gerfers, Continuous Time Sigma Delta
A/D Conversion: Fundamentals, Performance Limits and Robust Implementations
.

Sigma Delta Converters  Practical Design Guide

Author: Jose M. de la Rosa

Publisher: John Wiley & Sons

ISBN: 1119275768

Page: 568

View: 582

Thoroughly revised and expanded to help readers systematically increase their knowledge and insight about Sigma-Delta Modulators Sigma-Delta Modulators (SDMs) have become one of the best choices for the implementation of analog/digital interfaces of electronic systems integrated in CMOS technologies. Compared to other kinds of Analog-to-Digital Converters (ADCs), Σ∆Ms cover one of the widest conversion regions of the resolution-versus-bandwidth plane, being the most efficient solution to digitize signals in an increasingly number of applications, which span from high-resolution low-bandwidth digital audio, sensor interfaces, and instrumentation, to ultra-low power biomedical systems and medium-resolution broadband wireless communications. Following the spirit of its first edition, Sigma-Delta Converters: Practical Design Guide, 2nd Edition takes a comprehensive look at SDMs, their diverse types of architectures, circuit techniques, analysis synthesis methods, and CAD tools, as well as their practical design considerations. It compiles and updates the current research reported on the topic, and explains the multiple trade-offs involved in the whole design flow of Sigma-Delta Modulators—from specifications to chip implementation and characterization. The book follows a top-down approach in order to provide readers with the necessary understanding about recent advances, trends, and challenges in state-of-the-art Σ∆Ms. It makes more emphasis on two key points, which were not treated so deeply in the first edition: It includes a more detailed explanation of Σ∆Ms implemented using Continuous-Time (CT) circuits, going from system-level synthesis to practical circuit limitations. It provides more practical case studies and applications, as well as a deeper description of the synthesis methodologies and CAD tools employed in the design of Σ∆ converters. Sigma-Delta Converters: Practical Design Guide, 2nd Edition serves as an excellent textbook for undergraduate and graduate students in electrical engineering as well as design engineers working on SD data-converters, who are looking for a uniform and self-contained reference in this hot topic. With this goal in mind, and based on the feedback received from readers, the contents have been revised and structured to make this new edition a unique monograph written in a didactical, pedagogical, and intuitive style.

Continuous Time Sigma Delta A D Conversion

This comprehensive book deals with all relevant aspects arising during the analysis, design and simulation of the now widespread continuous-time implementations of sigma-delta modulators.

Continuous Time Sigma Delta A D Conversion

Author: Friedel Gerfers

Publisher: Springer Science & Business Media

ISBN: 3540284737

Page: 242

View: 878

Sigma-delta A/D converters are a key building block in wireless and multimedia applications. This comprehensive book deals with all relevant aspects arising during the analysis, design and simulation of the now widespread continuous-time implementations of sigma-delta modulators. The results of several years of research by the authors in the field of CT sigma-delta modulators are covered, including the analysis and modeling of different CT modulator architectures, CT/DT loop filter synthesis, a detailed error analysis of all components, and possible compensation/correction schemes for the non-ideal behavior in CT sigma-delta modulators. Guidance for obtaining low-power consumption and several practical implementations are also presented. It is shown that all the proposed new theories, architectures and possible correction techniques have been confirmed by measurements on discrete or integrated circuits. Quantitative results are also provided, thus enabling prediction of the resulting accuracy.

Oversampling Delta Sigma Data Converters

For both types of depend on the input signal level , it is conceivable that for inputs
the binary quantizer noise of the mith ( m 2 3 ) sigma - delta quantizer , certain
input signals , strong frequency components of the which appears at the output
as ...

Oversampling Delta Sigma Data Converters

Author: J. G. Candy

Publisher: Wiley-IEEE Press

ISBN:

Page: 499

View: 846

This now famous anthology brings together various aspects of oversampling methods and compares and evaluates design approaches. It describes the theoretical analysis of converter performances, the actual design of converters and their simulation, circuit implementations, and applications.

Integrated Circuit and System Design

Probably , the most robust implementation of a sigma - delta A / D converter is
using the switchedcapacitor technique . Their robustness and inherent linearity
combined with implementation efficiency are the reasons why switched -
capacitor ...

Integrated Circuit and System Design

Author:

Publisher:

ISBN:

Page:

View: 274

Dissertation Abstracts International

Complex integrated optical devices , such as lasers , frequency converters , filters
and demultiplexers , have been ... Stephen E . Levinson ; Thomas S . Huang
Order Number DA3202128 Current spoken dialog systems are not robust and
scalable . ... Design of a 14 - bit continuous - time delta - sigma A / D modulator
with 2 .

Dissertation Abstracts International

Author:

Publisher:

ISBN:

Page:

View: 994

Design of Multi Bit Delta Sigma A D Converters

This book discusses both architecture and circuit design aspects of Delta-Sigma A/D converters, with a special focus on multi-bit implementations.

Design of Multi Bit Delta Sigma A D Converters

Author: Yves Geerts

Publisher: Springer Science & Business Media

ISBN: 0306480158

Page: 226

View: 748

This book discusses both architecture and circuit design aspects of Delta-Sigma A/D converters, with a special focus on multi-bit implementations. The emphasis is on high-speed high-resolution converters in CMOS for ADSL applications, although the material can also be applied for other specification goals and technologies.

Proceedings of 1997 International Conference on Information Communications and Signal Processing 9 12 September 1997 Singapore

COMPARISON OF OPTIMAL IIR AND FIR FILTERS FOR SIGMA - DELTA
DEMODULATOR CIRCUITS Saman S . Abeysekera ... The proposed IIR filter
design problem is easy to solve and numerically robust . ... Delta ( £ - A )
Modulators have been widely used in the implementation of high quality A / D
and D / A convertors .

Proceedings of 1997 International Conference on Information  Communications  and Signal Processing  9 12 September 1997  Singapore

Author: IEEE Singapore Section

Publisher: Institute of Electrical & Electronics Engineers(IEEE)

ISBN: 9780780336766

Page: 1256

View: 345

This text covers both theoretical aspects as well as application-orientated research activities in the signal processing field, including such topics as: signal processing and multimedia; sub-band/wavelet signal processing and coding; and orthogonal transforms in communication.

IEEE Transactions on Circuits and Systems

Converters , design and anal , loinovici , A. , + , T - CASI Jun 06 1403 Switched
capacitor filters 10.7 - MHz sixth - order SC ladder filter ... Singh , V. , T - CASI Jan
06 214-215 delayed recurrent neural nets , noise disturbance , robust stabil . and
robust periodicity . ... Siu - Chung Wong , + , T - CASI Feb 06 454-462 estimation
of an initial condition of sigma - delta modulators via projection onto convex sets .

IEEE Transactions on Circuits and Systems

Author:

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The Design of Low Voltage Low Power Sigma Delta Modulators

A / D converters based on EA modulation are a robust family of oversampling
converters that pass the input signal essentially unaltered , but suppress the
quantization noise within the signal baseband . As the order of noise filtering is ...

The Design of Low Voltage  Low Power Sigma Delta Modulators

Author: Shahriar Rabii

Publisher: Springer

ISBN:

Page: 187

View: 883

Oversampling techniques based on sigma-delta modulation are widely used to implement the analog/digital interfaces in CMOS VLSI technologies. This approach is relatively insensitive to imperfections in the manufacturing process and offers numerous advantages for the realization of high-resolution analog-to-digital (A/D) converters in the low-voltage environment that is increasingly demanded by advanced VLSI technologies and by portable electronic systems. In The Design of Low-Voltage, Low-Power Sigma-Delta Modulators, an analysis of power dissipation in sigma-delta modulators is presented, and a low-voltage implementation of a digital-audio performance A/D converter based on the results of this analysis is described. Although significant power savings can typically be achieved in digital circuits by reducing the power supply voltage, the power dissipation in analog circuits actually tends to increase with decreasing supply voltages. Oversampling architectures are a potentially power-efficient means of implementing high-resolution A/D converters because they reduce the number and complexity of the analog circuits in comparison with Nyquist-rate converters. In fact, it is shown that the power dissipation of a sigma-delta modulator can approach that of a single integrator with the resolution and bandwidth required for a given application. In this research the influence of various parameters on the power dissipation of the modulator has been evaluated and strategies for the design of a power-efficient implementation have been identified. The Design of Low-Voltage, Low-Power Sigma-Delta Modulators begins with an overview of A/D conversion, emphasizing sigma-delta modulators. It includes a detailed analysis of noise in sigma-delta modulators, analyzes power dissipation in integrator circuits, and addresses practical issues in the circuit design and testing of a high-resolution modulator. The Design of Low-Voltage, Low-Power Sigma-Delta Modulators will be of interest to practicing engineers and researchers in the areas of mixed-signal and analog integrated circuit design.

Science Abstracts

... Batenburg , M.J. Reliable AuSn flip chip bonding on flexible prints 12955
Baggerman , A.F.J. , van Gerven , J.A.H. TAB ... Afifi , E. A fourth - order switched
capacitor cascade structure for sigma - delta converters 12604 Baber , H. ,
Beneat , J.

Science Abstracts

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