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Design Techniques For Mash Continuous Time Delta Sigma Modulators
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Book Synopsis Design Techniques for Mash Continuous-Time Delta-Sigma Modulators by : Qiyuan Liu
Download or read book Design Techniques for Mash Continuous-Time Delta-Sigma Modulators written by Qiyuan Liu and published by Springer. This book was released on 2018-03-27 with total page 215 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes a circuit architecture for converting real analog signals into a digital format, suitable for digital signal processors. This architecture, referred to as multi-stage noise-shaping (MASH) Continuous-Time Sigma-Delta Modulators (CT-ΔΣM), has the potential to provide better digital data quality and achieve better data rate conversion with lower power consumption. The authors not only cover MASH continuous-time sigma delta modulator fundamentals, but also provide a literature review that will allow students, professors, and professionals to catch up on the latest developments in related technology.
Book Synopsis Continuous-Time Sigma-Delta A/D Conversion by : Friedel Gerfers
Download or read book Continuous-Time Sigma-Delta A/D Conversion written by Friedel Gerfers and published by Springer Science & Business Media. This book was released on 2006-02-27 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Delta-sigma Modulators: Modeling, Design And Applications by : Vassilis Anastassopoulos
Download or read book Delta-sigma Modulators: Modeling, Design And Applications written by Vassilis Anastassopoulos and published by World Scientific. This book was released on 2003-09-09 with total page 259 pages. Available in PDF, EPUB and Kindle. Book excerpt: This important book deals with the modeling and design of higher-order single-stage delta-sigma modulators. It provides an overview of the architectures, the quantizer models, the design techniques and the implementation issues encountered in the study of the delta-sigma modulators. A number of applications are discussed, with emphasis on use in the design of analog-to-digital converters and in frequency synthesis. The book is education- rather than research-oriented, containing numerical examples and unsolved problems. It is aimed at introducing the final-year undergraduate, the graduate student or the electronic engineer to this field.
Book Synopsis Energy-efficient Design Techniques for High Speed Continuous Time Delta Sigma Modulators by : Abhishek Mukherjee
Download or read book Energy-efficient Design Techniques for High Speed Continuous Time Delta Sigma Modulators written by Abhishek Mukherjee and published by . This book was released on 2020 with total page 188 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Understanding Delta-Sigma Data Converters by : Shanthi Pavan
Download or read book Understanding Delta-Sigma Data Converters written by Shanthi Pavan and published by John Wiley & Sons. This book was released on 2017-01-24 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition introduces operation and design techniques for Sigma-Delta converters in physical and conceptual terms, and includes chapters which explore developments in the field over the last decade Includes information on MASH architectures, digital-to-analog converter (DAC) mismatch and mismatch shaping Investigates new topics including continuous-time ΔΣ analog-to-digital converters (ADCs) principles and designs, circuit design for both continuous-time and discrete-time ΔΣ ADCs, decimation and interpolation filters, and incremental ADCs Provides emphasis on practical design issues for industry professionals
Book Synopsis Oversampled Delta-Sigma Modulators by : Mücahit Kozak
Download or read book Oversampled Delta-Sigma Modulators written by Mücahit Kozak and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt: Oversampled Delta-Sigma Modulators: Analysis, Applications, and Novel Topologies presents theorems and their mathematical proofs for the exact analysis of the quantization noise in delta-sigma modulators. Extensive mathematical equations are included throughout the book to analyze both single-stage and multi-stage architectures. It has been proved that appropriately set initial conditions generate tone free output, provided that the modulator order is at least three. These results are applied to the design of a Fractional-N PLL frequency synthesizer to produce spurious free RF waveforms. Furthermore, the book also presents time-interleaved topologies to increase the conversion bandwidth of delta-sigma modulators. The topologies have been generalized for any interleaving number and modulator order. The book is full of design and analysis techniques and contains sufficient detail that enables readers with little background in the subject to easily follow the material in it.
Book Synopsis Sigma-Delta Converters: Practical Design Guide by : Jose M. de la Rosa
Download or read book Sigma-Delta Converters: Practical Design Guide written by Jose M. de la Rosa and published by John Wiley & Sons. This book was released on 2018-08-22 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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.
Book Synopsis Design Techniques for Delta Sigma Modulators Using VCO Based ADCs by : Karthikeyan Reddy
Download or read book Design Techniques for Delta Sigma Modulators Using VCO Based ADCs written by Karthikeyan Reddy and published by . This book was released on 2014 with total page 79 pages. Available in PDF, EPUB and Kindle. Book excerpt: VCO-based ADCs have recently emerged as attractive alternative to conventional Delta Sigma modulator architectures. Few salient features of a VCObased ADC are: 1) the quantization noise is 1st order noise shaped, 2) it is an open loop architecture, and, 3) its implementation is mostly digital in nature. Hence, they are ideally suited for oversampled data converter techniques with the capability to operate at near GHz frequencies. However, their performance is severely limited by the non-linearity of the voltage to frequency transfer curve. Also, when operating at GHz frequencies, the excess loop delay (ELD) of a continuous-time [delta sigma] modulator can be a large fraction of the sampling period, thereby affecting the of stability of the modulator. In this work, two new architectures are proposed to overcome the above mentioned drawbacks. In the first approach, a continuous-time Delta Sigma modulator incorporates a non-linear VCO as the second stage in a 2-stage residue canceling quantizer (RCQ) and mitigates the impact of its non-linearity by spanning only a small region of the VCOs tuning curve. In the second approach, both phase and frequency domain information are extracted from the VCO and fedback, which provides an extra clock cycle delay in the feeback path. This relaxes the timing constraints for the modulator, allowing it to be clocked at GHz frequencies.
Book Synopsis Continuous-Time Sigma-Delta Modulation for A/D Conversion in Radio Receivers by : Lucien Breems
Download or read book Continuous-Time Sigma-Delta Modulation for A/D Conversion in Radio Receivers written by Lucien Breems and published by Springer Science & Business Media. This book was released on 2006-04-18 with total page 165 pages. Available in PDF, EPUB and Kindle. Book excerpt: This text describes the design and theory of continuous-time sigma-delta modulators for analogue-to-digital conversion in radio receivers. The book's main focus is on dynamic range, linearity and power efficiency aspects of sigma-delta modulators, which are very important requirements for use in battery operated receivers.
Book Synopsis Minimizing Spurious Tones in Digital Delta-Sigma Modulators by : Kaveh Hosseini
Download or read book Minimizing Spurious Tones in Digital Delta-Sigma Modulators written by Kaveh Hosseini and published by Springer Science & Business Media. This book was released on 2011-06-25 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes several Digital Delta-Sigma Modulator (DDSM) architectures, including multi stage noise shaping (MASH), error feedback modulator (EFM) and single quantizer (SQ)-DDSM modulators, with a focus on predicting and maximizing their cycle lengths. The authors aim to demystify an important aspect of these particular DDSM structures, namely the existence of spurs resulting from the inherent periodicity of DDSMs with constant inputs. Simulink and MATLAB models and code are presented in Chapters 2–5 to enable the reader to reproduce the results in this work and to explore further. These examples will also be helpful for first-time designers of DDSMs.
Book Synopsis Bandpass Sigma Delta Modulators by : Jurgen van Engelen
Download or read book Bandpass Sigma Delta Modulators written by Jurgen van Engelen and published by Springer Science & Business Media. This book was released on 2013-03-09 with total page 190 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sigma delta modulation has become a very useful and widely applied technique for high performance Analog-to-Digital (A/D) conversion of narrow band signals. Through the use of oversampling and negative feedback, the quantization errors of a coarse quantizer are suppressed in a narrow signal band in the output of the modulator. Bandpass sigma delta modulation is well suited for A/D conversion of narrow band signals modulated on a carrier, as occurs in communication systems such as AM/FM receivers and mobile phones. Due to the nonlinearity of the quantizer in the feedback loop, a sigma delta modulator may exhibit input signal dependent stability properties. The same combination of the nonlinearity and the feedback loop complicates the stability analysis. In Bandpass Sigma Delta Modulators, the describing function method is used to analyze the stability of the sigma delta modulator. The linear gain model commonly used for the quantizer fails to predict small signal stability properties and idle patterns accurately. In Bandpass Sigma Delta Modulators an improved model for the quantizer is introduced, extending the linear gain model with a phase shift. Analysis shows that the phase shift of a sampled quantizer is in fact a phase uncertainty. Stability analysis of sigma delta modulators using the extended model allows accurate prediction of idle patterns and calculation of small-signal stability boundaries for loop filter parameters. A simplified rule of thumb is derived and applied to bandpass sigma delta modulators. The stability properties have a considerable impact on the design of single-loop, one-bit, high-order continuous-time bandpass sigma delta modulators. The continuous-time bandpass loop filter structure should have sufficient degrees of freedom to implement the desired (small-signal stable) sigma delta modulator behavior. Bandpass Sigma Delta Modulators will be of interest to practicing engineers and researchers in the areas of mixed-signal and analog integrated circuit design.
Book Synopsis Design Techniques for Wideband Low-power Delta-Sigma Analog-to-digital Converters by : Yan Wang
Download or read book Design Techniques for Wideband Low-power Delta-Sigma Analog-to-digital Converters written by Yan Wang and published by . This book was released on 2010 with total page 338 pages. Available in PDF, EPUB and Kindle. Book excerpt: Delta-Sigma analog-to-digital converters (ADCs) are traditionally used in high quality audio systems, instrumentation and measurement (I&M) and biomedical devices. With the continued downscaling of CMOS technology, they are becoming popular in wideband applications such as wireless and wired communication systems,high-definition television and radar systems. There are two general realizations of a [Delta-Sigma] modulator. One is based on the discrete-time (DT) switched-capacitor (SC) circuitry and the other employs continuous-time (CT) circuitry. Compared to a CT structure, the DT [Delta-Sigma] ADC is easier to analyze and design, is more robust to process variations and jitter noise, and is more flexible in the multi-mode applications. On the other hand, the CT [Delta-Sigma] ADC does not suffer from the strict settling accuracy requirement for the loop filter and thus can achieve lower power dissipation and higher sampling frequency than its DT counterpart. In this thesis, both DT and CT [Delta-Sigma] ADCs are investigated. Several design innovations, in both system-level and circuit-level, are proposed to achieve lower power consumption and wider signal bandwidth. For DT [Delta-Sigma] ADCs, a new dynamic-biasing scheme is proposed to reduce opamp bias current and the associated signal-dependent harmonic distortion is minimized by using the low-distortion architecture. The technique was verified in a 2.5MHz BW and 13bit dynamic range DT [Delta-Sigma] ADC. In addition, a second-order noise coupling technique is presented to save two integrators for the loop filter, and to achieve low power dissipation. Also, a direct-charge-transfer (DCT) technique is suggested to reduce the speed requirements of the adder, which is also preferable in wideband low-power applications. For CT [Delta-Sigma] ADCs, a wideband low power CT 2-2 MASH has been designed. High linearity performance was achieved by using a modified low-distortion technique, and the modulator achieves higher noise-shaping ability than the single stage structure due to the inter-stage gain. Also, the quantization noise leakage due to analog circuit non-idealities can be adaptively compensated by a designed digital calibration filter. Using a 90nm process, simulation of the modulator predicts a 12bit resolution within 20MHz BW and consumes only 25mW for analog circuitry. In addition, the noise-coupling technique is investigated and proposed for the design of CT [Delta-Sigma] ADCs and it is promising to achieve low power dissipation for wideband applications. Finally, the application of noise-coupling technique is extended and introduced to high-accuracy incremental data converters. Low power dissipation can be expected.
Book Synopsis Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits by : Andrea Baschirotto
Download or read book Next-Generation ADCs, High-Performance Power Management, and Technology Considerations for Advanced Integrated Circuits written by Andrea Baschirotto and published by Springer Nature. This book was released on 2019-10-24 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the 18 tutorials presented during the 28th workshop on Advances in Analog Circuit Design. Expert designers present readers with information about a variety of topics at the frontier of analog circuit design, including next-generation analog-to-digital converters , high-performance power management systems and technology considerations for advanced IC design. For anyone involved in analog circuit research and development, this book will be a valuable summary of the state-of-the-art in these areas. Provides a summary of the state-of-the-art in analog circuit design, written by experts from industry and academia; Presents material in a tutorial-based format; Includes coverage of next-generation analog-to-digital converters, high-performance power management systems, and technology considerations for advanced IC design.
Book Synopsis Wideband Continuous-time ΣΔ ADCs, Automotive Electronics, and Power Management by : Andrea Baschirotto
Download or read book Wideband Continuous-time ΣΔ ADCs, Automotive Electronics, and Power Management written by Andrea Baschirotto and published by Springer. This book was released on 2016-08-12 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on the 18 tutorials presented during the 25th workshop on Advances in Analog Circuit Design. Expert designers present readers with information about a variety of topics at the frontier of analog circuit design, including low-power and energy-efficient analog electronics, with specific contributions focusing on the design of continuous-time sigma-delta modulators, automotive electronics, and power management. This book serves as a valuable reference to the state-of-the-art, for anyone involved in analog circuit research and development.
Book Synopsis Design of Continuous-time Delta-sigma Modulators for Wireless Applications by : 翁展翔
Download or read book Design of Continuous-time Delta-sigma Modulators for Wireless Applications written by 翁展翔 and published by . This book was released on 2008 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Circuits and Systems for the Internet of Things by : João Goes
Download or read book Circuits and Systems for the Internet of Things written by João Goes and published by CRC Press. This book was released on 2022-09-01 with total page 344 pages. Available in PDF, EPUB and Kindle. Book excerpt: Internet-of-Things (IoT) can be envisaged as a dynamic network of interconnected physical and virtual entities (things), with their own identities and attributes, seamlessly integrated in order to e.g. actively participate in economic or societal processes, interact with services, and react autonomously to events while sensing the environment. By enabling things to connect and becoming recognizable, while providing them with intelligence, informed and context based decisions are expected in a broad range of domains spanning from health and elderly care to energy efficiency, either providing business competitive advantages to companies, either addressing key social concerns. The level of connectivity and analytical intelligence provided by the IoT paradigm is expected to allow creating new services that would not be feasible by other means. This CAS4IoT book targets post-graduate students and design engineers, with the skills to understand and design a broader range of analog, digital and mixed-signal circuits and systems, in the field of IoT, spanning from data converters for sensor interfaces to radios, ensuring a good balance between academia and industry, combined with a judicious selection of worldwide distinguished authors.
Book Synopsis Analog and Mixed-Signal Circuits in Nanoscale CMOS by : Rui Paulo da Silva Martins
Download or read book Analog and Mixed-Signal Circuits in Nanoscale CMOS written by Rui Paulo da Silva Martins and published by Springer Nature. This book was released on 2023-01-05 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides readers with a single-source reference to the state-of-the-art in analog and mixed-signal circuit design in nanoscale CMOS. Renowned authors from academia describe creative circuit solutions and techniques, in state-of-the-art designs, enabling readers to deal with today’s technology demands for high integration levels with a strong miniaturization capability.
