A Data Interface For Ultra High Speed Adc Integrated Circuits
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A Data Interface For Ultra High Speed Adc Integrated Circuits
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Author : Rafael Castro Scorsi
language : en
Publisher:
Release Date : 2011
A Data Interface For Ultra High Speed Adc Integrated Circuits written by Rafael Castro Scorsi and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2011 with categories.
Analog-to-Digital (ADC) converters have been an essential building block of electronic design for years. As ADC components get faster, new data interfaces are required in order to keep up with the faster data rates while providing very high data integrity. The objective of this project was to design an inter-IC ADC interface for converters with data bandwidths as high as 56 Gigabytes per second. The main goal for this project was to create a mechanism for interfacing a general-purpose high-speed ADC integrated circuit with an FPGA. This will enable applications that can benefit from the reprogrammability offered by FPGAs as well as those that could not justify a monolithic integrated solution for cost reasons. The interface presented is based on the physical layer of the IEEE 10GBASE-KR specification for 10 Gigabit Ethernet (10GE). Leveraging this specification provides significant benefits as it defines most of the services required by the interface, such as effcient encoding and forward error correction. Furthermore, using an interface as widely used as 10GBASE-KR leverages significant validation work as well as widespread support in mainstream FPGAs and by IP providers. The report will provide an analysis of the requirements of the ADC interface and a description of the architecture proposed. One key aspect of the design of the system was the analysis of the e ects of random bit errors in the channel and how to deal with them while making a robust interface. The causes of error are described and the critical sections of the system were simulated to validate the choice of Forward Error Correction solution. Finally, the report describes the working prototype system built in an FPGA board and provides a description of the performance achieved.
Design Techniques For Ultra High Speed Time Interleaved Analog To Digital Converters
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Author : Yida Duan
language : en
Publisher:
Release Date : 2015
Design Techniques For Ultra High Speed Time Interleaved Analog To Digital Converters written by Yida Duan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015 with categories.
Analog-to-Digital Converters (ADCs) serve as the interfaces between the analog natural world and the binary world of computer data. Due to this essential role, ADC circuits have been well studied over 40 years, and many problems associated with them have already been solved. However in recent years, a new species of ADCs has appeared, and since then attracted lots of attention. These are ultra-high-speed (often greater than 40GS/s) time-interleaved ADCs of low or medium resolution (around 6 to 8 bit) built in CMOS processes. Although such ADCs can be used in high-speed electronic measurement equipment and radar systems, the recent driving force behind them is next generation 100Gbps/400Gbps fiber optical transceivers. These transceivers take advantage of ultra-high-speed ADCs and digital-signal-processors (DSPs) to enable ultra-high data-rate communications in long-haul networks (city-to-city, transcontinental, and transoceanic fiber links), metro networks (fibers that connect enterprises in metropolitan areas), and data centers (fiber links within data center infrastructures). At such high sampling rate, massively time-interleaved successive-approximation ADC (SAR ADC) architecture has emerged as the dominant solution due to its excellent power efficiency. Several recent works has demonstrated success in achieving high sampling rate. However, the sampling network has become the bottleneck that limits the input bandwidth in these ADCs. It is apparent that conventional switch-based track-and-hold (T&H) circuit cannot satisfy the >20GHz bandwidth requirement. In addition, it is unclear what the optimal interleaving configuration is. Each state-of-the-art design adopts a different interleaving configuration - from straightforward conventional 1-rank interleaving to 2-rank hierarchical sampling or even 3 ranks. How to partition interleaving factors among different ranks has not yet been investigated. Furthermore, asynchronous SAR sub-ADCs are often used in these designs to push the sampling rate even further. The well-known sparkle-code issues caused by comparator meta-stability in asynchronous SARs can significantly increase the Bit-Error-Rate (BER) of the transceivers unless power hungry error correction coding are implemented in the system. Although many works in the literature attempted to deal with the meta-stability in asynchronous SARs, the effectiveness of these approaches have not been fully demonstrated. In this thesis, I will first propose a new cascode-based T&H circuits to improve the ADC bandwidth beyond the limit of conventional switch-based T&H circuits. Then, a system design and optimization methodology of hierarchical time-interleaved sampling network is presented in the context of cascode T&H. To deal with sparkle-code issue in asynchronous SAR sub-ADCs, a new back-end meta-stability correction technique is employed. An extensive statistical analysis is provided to verify the correction algorithm can greatly reduce sparkle-code error-rates. To further demonstrate the effectiveness of the proposed circuits and techniques, two prototype ADCs have been implemented. The first 7b 12.5GS/s hierarchically time-interleaved ADC in 65nm CMOS process demonstrates 29.4dB SNDR and >25GHz bandwidth. The later 6b 46GS/s ADC in 28nm CMOS employs asynchronous SAR sub-ADC design with back-end meta-stability correction. The measurement results show it achieves sparkle-code error free operation over 1e10 samples in addition to achieving >23GHz bandwidth and 25.2dB SNDR. The power consumption is 381mW from 1.05V/1.6V supplies, and the FOM is 0.56pJ/conversion-step.
Fpga To High Speed Adc Data Streaming
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Author : Marco Gottardo
language : en
Publisher: Lulu.com
Release Date : 2018
Fpga To High Speed Adc Data Streaming written by Marco Gottardo and has been published by Lulu.com this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018 with Technology & Engineering categories.
Where does the content of this book apply? Firstly in research institutes where it is necessary to acquire data in streaming at high speed and low noise especially in the lower part of the spectrum. For example the current machines for the study of nuclear fusion does not produce energy, and their output is substantially a large amount of data. The accuracy of the data collected, and their density within narrow temporal samples, can determine the effectiveness of the real time control systems to install in future reactors. We set ourselves the objective to design and test a high-speed and high-density data acquisition system based on the latest generation FPGA technologies. in the book is used the latest products released by Xilinx to design a acquire stream system of signals from generic probes (specifically magnetic probes). The Zynq 7000 family is nowadays state of the art of sistemy SoC that integrating a powerful and extensive FPGA section with an ARM mullticore.
Data Conversion Handbook
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Author : Walt Kester
language : en
Publisher: Newnes
Release Date : 2005
Data Conversion Handbook written by Walt Kester and has been published by Newnes this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Computers categories.
This complete update of a classic handbook originally created by Analog Devices and never previously published offers the most complete and up-to-date reference available on data conversion, from the world authority on the subject. It describes in depth the theory behind and the practical design of data conversion circuits. It describes the different architectures used in A/D and D/A converters - including many advances that have been made in this technology in recent years - and provides guidelines on which types are best suited for particular applications. It covers error characterization and testing specifications, essential design information that is difficult to find elsewhere. The book also contains a wealth of practical application circuits for interfacing and supporting A/D and D/A converters within an electronic system. In short, everything an electronics engineer needs to know about data converters can be found in this volume, making it an indispensable reference with broad appeal. The accompanying CD-ROM provides software tools for testing and analyzing data converters as well as a searchable pdf version of the text. * brings together a huge amount of information impossible to locate elsewhere. * many recent advances in converter technology simply aren't covered in any other book. * a must-have design reference for any electronics design engineer or technician
Data Conversion Handbook
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Author : Analog Devices Inc. Analog Devices Inc. Engineeri
language : en
Publisher: Elsevier
Release Date : 2004-12-18
Data Conversion Handbook written by Analog Devices Inc. Analog Devices Inc. Engineeri and has been published by Elsevier this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004-12-18 with Technology & Engineering categories.
This comprehensive handbook is a one-stop engineering reference. Covering data converter fundamentals, techniques, applications, and beginning with the basic theoretical elements necessary for a complete understanding of data converters, this reference covers all the latest advances in the field. This text describes in depth the theory behind and the practical design of data conversion circuits as well as describing the different architectures used in A/D and D/A converters. Details are provided on the design of high-speed ADCs, high accuracy DACs and ADCs, and sample-and-hold amplifiers. Also, this reference covers voltage sources and current reference, noise-shaping coding, and sigma-delta converters, and much more. The book’s 900-plus pages are packed with design information and application circuits, including guidelines on selecting the most suitable converters for particular applications. You’ll find the very latest information on: · Data converter fundamentals, such as key specifications, noise, sampling, and testing · Architectures and processes, including SAR, flash, pipelined, folding, and more · Practical hardware design techniques for mixed-signal systems, such as driving ADCs, buffering DAC outputs, sampling clocks, layout, interfacing, support circuits, and tools. · Data converter applications dealing with precision measurement, data acquisition, audio, display, DDS, software radio and many more. The accompanying CD-ROM provides software tools for testing and analyzing data converters as well as a searchable pdf version of the text. * Brings together a huge amount of information impossible to locate elsewhere. * Many recent advances in converter technology simply aren't covered in any other book. * A must-have design reference for any electronics design engineer or technician.
Power Efficient High Speed Parallel Sampling Adcs For Broadband Multi Carrier Systems
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Author : Yu Lin
language : en
Publisher: Springer
Release Date : 2015-05-07
Power Efficient High Speed Parallel Sampling Adcs For Broadband Multi Carrier Systems written by Yu Lin and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2015-05-07 with Technology & Engineering categories.
This book addresses the challenges of designing high performance analog-to-digital converters (ADCs) based on the “smart data converters” concept, which implies context awareness, on-chip intelligence and adaptation. Readers will learn to exploit various information either a-priori or a-posteriori (obtained from devices, signals, applications or the ambient situations, etc.) for circuit and architecture optimization during the design phase or adaptation during operation, to enhance data converters performance, flexibility, robustness and power-efficiency. The authors focus on exploiting the a-priori knowledge of the system/application to develop enhancement techniques for ADCs, with particular emphasis on improving the power efficiency of high-speed and high-resolution ADCs for broadband multi-carrier systems.
Incremental Data Converters For Sensor Interfaces
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Author : Chia-Hung Chen
language : en
Publisher: John Wiley & Sons
Release Date : 2023-12-19
Incremental Data Converters For Sensor Interfaces written by Chia-Hung Chen and has been published by John Wiley & Sons this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-19 with Technology & Engineering categories.
Comprehensive resource discussing operating principles, available architectures, and design of micropower incremental analog-to-digital converters (IADCs) Incremental Data Converters for Sensor Interfaces describes the motivation for using incremental analog-to-digital converters (IADCs), including the theoretical foundations of their operation, the trade-offs in their use, and the practical issues in the circuit analysis and design of IADCs. The text covers core foundational knowledge such as the key algorithms used, circuits for single-stage and multi-stage IADCs, the design of the digital post filters for single- and multi-stage IADCs, IADC applications in measurement and instrumentation, medicine, imagers, and IoT, and comparison of delta-sigma (D-S) and incremental ADCs (IADCs) in terms of accuracy, latency, and multiplexed operation. To aid in reader comprehension and serve as an excellent classroom learning resource, Incremental Data Converters for Sensor Interfaces includes in-text problems and homework for graduate studies, along with helpful computer codes in MATLAB and Simulink. Additional topics covered in Incremental Data Converters for Sensor Interfaces include: Sensors and sensor interfaces, mixed-mode (analog–digital) communication and consumer signal chains, and ADC algorithms Quantization errors vs. quantization noise, and performance parameters and figures of merit, including resolution, linearity, accuracy, bandwidth, latency, and power dissipation Nyquist-rate and oversampling data converters, noise-shaping ADCs, and basic architectures for IADCs, including single- and multi-stage designs and discrete vs. continuous-time operation Loop filter design, D/A converter design, dynamic element matching and digital calibration, and quantizer design With comprehensive coverage of foundational knowledge surrounding the subject, various real-world examples, and helpful learning aids, Incremental Data Converters for Sensor Interfaces is an essential resource for graduate students in electronics programs, along with industrial circuit design professionals.
Ultra Low Power Integrated Circuit Design
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Author : Nianxiong Nick Tan
language : en
Publisher: Springer Science & Business Media
Release Date : 2013-10-23
Ultra Low Power Integrated Circuit Design written by Nianxiong Nick Tan and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2013-10-23 with Technology & Engineering categories.
This book describes the design of CMOS circuits for ultra-low power consumption including analog, radio frequency (RF), and digital signal processing circuits (DSP). The book addresses issues from circuit and system design to production design, and applies the ultra-low power circuits described to systems for digital hearing aids and capsule endoscope devices. Provides a valuable introduction to ultra-low power circuit design, aimed at practicing design engineers; Describes all key building blocks of ultra-low power circuits, from a systems perspective; Applies circuits and systems described to real product examples such as hearing aids and capsule endoscopes.
High Speed A D Converters
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Author : Alfi Moscovici
language : en
Publisher: Springer
Release Date : 2000-12-31
High Speed A D Converters written by Alfi Moscovici and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000-12-31 with Technology & Engineering categories.
The Analog to Digital Converters represent one half of the link between the world we live in - analog - and the digital world of computers, which can handle the computations required in digital signal processing. These devices are mathematically very complex due to their nonlinear behavior and thus fairly difficult to analyze without the use of simulation tools. High Speed A/D Converters: Understanding Data Converters Through SPICE presents the subject from the practising engineer's point of view rather than from the academic's point of view. A practical approach is emphasized. High Speed A/D Converters: Understanding Data Converters Through SPICE is intended as a learning tool by providing building blocks that can be stacked on top of each other to build higher order systems. The book provides a guide to understanding the various topologies used in A/D converters by suggesting simple methods for the blocks used in an A/D converter. The converters discussed throughout the book constitute a class of devices called undersampled or Nyquist converters. The tools used in deriving the results presented are: TopSpice® by Penzar - a mixed mode SPICE simulator - version 5.90. The files included in Appendix A were written for this tool. However, most circuit files need only minor adjustments to be used on other SPICE simulators such as PSpice, Hspice, IS_Spice and Micro-Cap IV; Mathcad 2000 - Professional by Mathsoft. This tool is very useful in performing FFT analysis as well as drawing some of the graphs. Again, the mathcad files are included to help the user analyze the data. High Speed A/D Converters: Understanding Data Converters Through SPICE not only supplies the models for the A/D converters for SPICE program but also describes the physical reasons for the converter's performance.
Ultra Low Power Integrated Circuit Design For Wireless Neural Interfaces
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Author : Jeremy Holleman
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-10-29
Ultra Low Power Integrated Circuit Design For Wireless Neural Interfaces written by Jeremy Holleman and has been published by Springer Science & Business Media this book supported file pdf, txt, epub, kindle and other format this book has been release on 2010-10-29 with Technology & Engineering categories.
This book will describe ultra low-power, integrated circuits and systems designed for the emerging field of neural signal recording and processing, and wireless communication. Since neural interfaces are typically implanted, their operation is highly energy-constrained. This book introduces concepts and theory that allow circuit operation approaching the fundamental limits. Design examples and measurements of real systems are provided. The book will describe circuit designs for all of the critical components of a neural recording system, including: Amplifiers which utilize new techniques to improve the trade-off between good noise performance and low power consumption. Analog and mixed-signal circuits which implement signal processing tasks specific to the neural recording application: Detection of neural spikes Extraction of features that describe the spikes Clustering, a machine learning technique for sorting spikes Weak-inversion operation of analog-domain transistors, allowing processing circuits that reduce the requirements for analog-digital conversion and allow low system-level power consumption. Highly-integrated, sub-mW wireless transmitter designed for the Medical Implant Communications Service (MICS) and ISM bands.