Sigma Delta A/D Conversion for Signal Conditioning by Kathleen PhilipsSigma Delta A/D Conversion for Signal Conditioning by Kathleen Philips

Sigma Delta A/D Conversion for Signal Conditioning

byKathleen Philips, Arthur H.M. van Roermund

Paperback | November 19, 2010

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SigmaDelta A/D Conversion for Signal Conditioning addresses the application of continuous-time SigmaDelta A/D converters in receivers for a.o. wireless communication. In particular, it focuses on their assets for digitizing such channels.The book gives an overview of the state-of-the-art in SigmaDelta design and of the challenges for future realizations. It provides an understanding of the fundamental power efficiency of SigmaDelta converters. In addition, it presents an analysis of the power consumption in the decimation filter. Understanding these power/performance trade-offs, it becomes clear that straight-forward digitization of a conditioning channel, i.e. exchanging analog for digital conditioning, comes at a major power penalty. This book proposes an alternative vision on digitization: because of its inherent immunity to interferers, part of the signal conditioning can be integrated into the continuous-time SigmaDelta A/D converter. This approach results in a major improvement of the power/performance balance of the entire channel. The various aspects of the interferer immunity of the converter are analyzed in much detail and improved SigmaDelta topologies with even higher immunity are presented. Design examples for highly digitized AM/FM and Bluetooth radios serve as an illustration. The examples include detailed circuit diagrams, simulation and test results, as well as an evaluation of the SigmaDelta-based conditioning channel as compared to more conventional solutions.The book is essential reading for mixed-signal and RF designers who want to familiarize with the basics of SigmaDelta design. For the experienced designer and for the system architect, the book provides an in-depth understanding of the major assets of SigmaDelta converters in digitized receivers.
Kathleen Philips was born in 1972, in Aalst, Belgium. In 1992 and in 1995, respectively, she obtained the B. Sc. and the M. Sc. degree in Electrical Engineering from the "Katholieke Universiteit Leuven" in Belgium. The graduation project was on the design of monolithic microwave ICs based on HEMT-transistors. In the summer of 1993, sh...
Title:Sigma Delta A/D Conversion for Signal ConditioningFormat:PaperbackDimensions:288 pagesPublished:November 19, 2010Publisher:Springer NetherlandsLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:9048171695

ISBN - 13:9789048171699

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Table of Contents

List of symbols and abbreviations 1 Introduction 1.1 Background 1.1.1 Anelectronicsystem 1.1.2 Digital signalprocessing 1.1.3 Digitizationof signal conditioning 1.1.4 Digitization of inter-die interfaces 1.2 Aim of this thesis 1.3 Scope 1.3.1 BasebandA/Dconditioning channels 1.3.2 Continuous-time single-bit sigma-delta conversion 1.3.3 CMOS technology 1.3.4 Power consumptionas cost parameter 1.3.5 Performance parameters 1.4 Outline 2 The signal conditioning channel 2.1 Generic communication channel 2.2 Performance parameters 2.3 Conventional conditioning channels 2.4 Evolution 2.4.1 Technology advances 2.4.2 Systemdemands 2.4.3 Advances in digital signal processing and analog circuit design 2.4.4 Digitizationof the architecture 2.5 Nomenclature 2.6 Conclusions3 Sigma delta A/D conversion 3.1 Historical overview 3.2 State-of-the-art in sigma delta A/D conversion 3.2.1 Architectural considerations 3.2.2 Implementation aspects 3.2.3 Performance metrics for sigma delta ADCs 3.3 sigma delta ADCs infuture conditioning channels 3.3.1 The Shannon theorem and sigma delta based signal conditioning 3.3.2 Comparison of Nyquist and sigma delta based signal conditioning3.3.3 Survey of published power/performance values3.4 Limitations of sigma delta A/D conversion 3.4.1 Linear limitations 3.4.2 Non-linear limitations 3.5 Conclusions 4 Power consumption in channel building blocks 4.1 Literature on power/performance analysis4.2 Figures-of-merit 4.2.1 FOM related to thermal noise 4.2.2 FOMincluding distortion4.2.3 FOM related to signal resolution4.3 Power consumption in analog conditioning circuits 4.3.1 Power/performance relations 4.3.2 Discussion 4.4 Power consumption in a sigma delta ADC4.4.1 Power/performance relations 4.4.2 Discussion 4.5 Power consumption in digital conditioning circuits 4.5.1 Filter functions 4.5.2 Power/performancerelations 4.5.3 Discussion4.6 Comparison4.7 Conclusions5 Full-analog and full-digital conditioning channels 5.1 Full-analog conditioning channel 5.1.1 The conditioning channel 5.2 Full-digital conditioning channel 5.2.1 The conditioning channel 5.2.2 Power/performance analysis 5.3 Conclusions 6 Conditioning sigma delta ADCs 6.1 Generic conditioning sigma delta ADC 6.1.1 Conceptofoperation 6.1.2 Universal model of a sigma delta modulator 6.1.3 Interferer immunity 6.1.4 Power/performance analysis 6.2 Signal conditioning in the decimation filter 6.2.1 Interferer immunity 6.2.2 The conditioning channel 6.2.3 Power/performance analysis 6.3 Signal conditioning with a restricted filtering STF 6.3.1 Interferer immunity 6.3.2 The conditioning channel 6.3.3 Power/performance analysis 6.3.4 Conditioning hybrid sigma delta ADC 6.4 Signal conditioningbyunrestrictedSTFdesign 6.4.1 Interferer immunity 6.4.2 The conditioningchannel 6.4.3 Power/performanceanalysis 6.5 Comparisonof conditioningADCs 6.5.1 Comparison of topologies 6.5.2 Flexibility 6.5.3 Power consumption 6.5.4 Guidelines 6.6 Conclusions 7 Digitization of the inter-die interface 7.1 Considerations 7.2 Power inthe interface 7.2.1 Analoginterface 7.2.2 Digital interface after decimation 7.2.3 Digital interface before decimation 7.2.4 Comparison 7.3 Application to the conditioning channels 7.4 Conclusions 8 Highly analog and highly digital channels for FM/AM radio8.1 System8.1.1 Conventional radio with analog demodulation8.1.2 Radio with digital demodulation8.2 VGAdesign 8.2.1 HighlylinearVGAdesign 8.2.2 Evaluation 8.3 ADCdesign 8.3.1 Conventionalsolutions 8.3.2 sigma delta ADC with integrated passive mixer 8.3.3 Evaluation 8.4 Evaluationof the channel 8.4.1 Discussion 8.4.2 Benchmark 8.5 Conclusions 9 Conditioning sigma delta ADCs for Bluetooth9.1 System9.1.1 Conventional radio with analog demodulation 9.1.2 Radio with digital demodulation and analog signal-conditioning 9.1.3 Radio with digital demodulation, without analog signal conditioning9.2 Feed forward sigma delta ADC 9.2.1 Design 9.2.2 Evaluation 9.3 Conditioning feedback sigma deltaADC 9.3.1 Design 9.3.2 Evaluation9.4 FFB-ADC 9.4.1 Design 9.4.2 Evaluation 9.5 Evaluationof the channels 9.5.1 Benchmark with published ADCs 9.5.2 Comparison of the presented ADCs 9.5.3 Benchmark with published Bluetooth conditioning channels 9.6 Conclusions 10 General conclusions A Overview of published sigma delta ADCs B Power/performance relation of analog circuits B.1 Simple differential pair B.2 Differentialpair in aglobal feed-back configuration B.3 Degenerated differential pair C Power/performance relation of digital filters C.1 Analysis of the filter topology C.2 Calculation of filter parametersC.3 Calculation of powerc onsumptionC.4 Extensionto other implementations D Third-order distortion in analog circuits and sigma delta ADCs E Power consumption in a data interface.E.1 Analogdata interface. E.2 Digital data interface References Original contributions List of publications Summary SamenvattingDankwoordBiography