High Speed And Low Power Pipelined Adc Design For Mri Application
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High Speed And Low Power Pipelined Adc Design For Mri Application
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Author : Pavan Kumar Ramakrishnaiah
language : en
Publisher:
Release Date : 2014
High Speed And Low Power Pipelined Adc Design For Mri Application written by Pavan Kumar Ramakrishnaiah and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014 with Analog-to-digital converters categories.
The advancement in the integrated circuit technologies has led to the development of many high speed devices. This lead to the necessity to have a fast and efficient circuit which can provide high computational capability. One such device is an Analog to Digital Converter (ADC). The ADC is one of the most basic components of the any digital or analog circuit when there is an interfacing between the digital system and the real-world which is analog in nature. So this forms a primary and an essential block of a computing digital system. The advancement in the Integrated Circuit (IC) industries has led to the growth in the Medical industries. One such development is the advance magnetic resonant scanners in the market. The Magnetic Resonant Imaging (MRI) is a popular imaging technique over Computed Tomography (CT). The signals captured by the MRI machine is an analog signal which has to be processed by the digital processor. So the MRI machines need to have a faster and high resolution ADC. Since the images captured by the scanner has to be processed for high clarity, the resolution has to be very high. The thesis project focus on designing a high speed Pipelined ADC for MRI applications. A complementary CMOS based 9 bit Pipelined ADC is proposed in this thesis which converts the analog waves into a digital word with minimum number of comparators and thereby increasing the speed and reducing the power of the device. The ADC consist of three stages. Each stage is built using a high speed 3 Bit Flash ADC. The ADC has a high sampling rate up to 5GHz and high resolution of 9 bits. The Direct Current (DC) analysis of the design shows that the design consumes 450mW of power. The layout for the design is implemented with IBM 180nm CMOS technology which consumes an area of 9.24mm2 .
Pipelined Adc Design And Enhancement Techniques
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Author : Imran Ahmed
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-03-10
Pipelined Adc Design And Enhancement Techniques written by Imran Ahmed 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 2010-03-10 with Technology & Engineering categories.
Pipelined ADCs have seen phenomenal improvements in performance over the last few years. As such, when designing a pipelined ADC a clear understanding of the design tradeoffs, and state of the art techniques is required to implement today's high performance low power ADCs.
High Performance And High Speed Pipelined Adcs
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Author : Manar El-Chammas
language : en
Publisher: Springer Nature
Release Date : 2023-05-19
High Performance And High Speed Pipelined Adcs written by Manar El-Chammas and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-05-19 with Technology & Engineering categories.
This book discusses the theoretical foundations and design techniques needed to effectively design high-speed (multi-GS/s) and high-performance pipelined ADCs, which play a critical role in the signal chain of various systems. Readers will be walked through the design and analysis of pipelined ADCs and their topologies, and will learn both theoretical and practical design details that will enable them to explore and build these data converters. The author also presents details on various aspects of pipelined ADCs and their impact on the ADC speed and performance, with a focus on the input buffer and sampling network, the reference amplifier, comparators and their impact on ADC error rate and high-frequency performance, and mismatch estimation and correction.
Low Power Design Techniques For High Speed Pipelined Adcs
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Author : Naga Sasidhar Lingam
language : en
Publisher:
Release Date : 2009
Low Power Design Techniques For High Speed Pipelined Adcs written by Naga Sasidhar Lingam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2009 with Low voltage integrated circuits categories.
Real world is analog but the processing of signals can best be done in digital domain. So the need for Analog to Digital Converters (ADCs) is ever rising as more and more applications set in. With the advent of mobile technology, power in electronic equipment is being driven down to get more battery life. Because of their ubiquitous nature, ADCs are prime blocks in the signal chain in which power is intended to be reduced. In this thesis, four techniques to reduce power in high speed pipelined ADCs have been proposed. The first is a capacitor and opamp sharing technique that reduces the load on the first stage opamp by three fold. The second is a capacitor reset technique that aids removing the sample and hold block to reduce power. The third is a modified MDAC which can take rail-to-rail input swing to get an extra bit thus getting rid of a power hungry opamp. The fourth is a hybrid architecture which makes use of an asynchronous SAR ADC as the backend of a pipelined ADC to save power. Measurement and simulation results that prove the efficiency of the proposed techniques are presented.
Systematic Design For Optimisation Of Pipelined Adcs
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Author : João Goes
language : en
Publisher: Springer Science & Business Media
Release Date : 2006-04-18
Systematic Design For Optimisation Of Pipelined Adcs written by João Goes 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 2006-04-18 with Technology & Engineering categories.
This excellent reference proposes and develops new strategies, methodologies and tools for designing low-power and low-area CMOS pipelined A/D converters. The task is tackled by following a scientifically-consistent approach. The book may also be used as a text for advanced reading on the subject.
High Resolution And High Speed Integrated Cmos Ad Converters For Low Power Applications
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Author : Weitao Li
language : en
Publisher: Springer
Release Date : 2017-08-01
High Resolution And High Speed Integrated Cmos Ad Converters For Low Power Applications written by Weitao Li and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2017-08-01 with Technology & Engineering categories.
This book is a step-by-step tutorial on how to design a low-power, high-resolution (not less than 12 bit), and high-speed (not less than 200 MSps) integrated CMOS analog-to-digital (AD) converter, to respond to the challenge from the rapid growth of IoT. The discussion includes design techniques on both the system level and the circuit block level. In the architecture level, the power-efficient pipelined AD converter, the hybrid AD converter and the time-interleaved AD converter are described. In the circuit block level, the reference voltage buffer, the opamp, the comparator, and the calibration are presented. Readers designing low-power and high-performance AD converters won’t want to miss this invaluable reference. Provides an in-depth introduction to the newest design techniques for the power-efficient, high-resolution (not less than 12 bit), and high-speed (not less than 200 MSps) AD converter; Presents three types of power-efficient architectures of the high-resolution and high-speed AD converter; Discusses the relevant circuit blocks (i.e., the reference voltage buffer, the opamp, and the comparator) in two aspects, relaxing the requirements and improving the performance.
Low Power High Speed Adcs For Nanometer Cmos Integration
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Author : Zhiheng Cao
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-07-15
Low Power High Speed Adcs For Nanometer Cmos Integration written by Zhiheng Cao 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 2008-07-15 with Technology & Engineering categories.
Low-Power High-Speed ADCs for Nanometer CMOS Integration is about the design and implementation of ADC in nanometer CMOS processes that achieve lower power consumption for a given speed and resolution than previous designs, through architectural and circuit innovations that take advantage of unique features of nanometer CMOS processes. A phase lock loop (PLL) clock multiplier has also been designed using new circuit techniques and successfully tested. 1) A 1.2V, 52mW, 210MS/s 10-bit two-step ADC in 130nm CMOS occupying 0.38mm2. Using offset canceling comparators and capacitor networks implemented with small value interconnect capacitors to replace resistor ladder/multiplexer in conventional sub-ranging ADCs, it achieves 74dB SFDR for 10MHz and 71dB SFDR for 100MHz input. 2) A 32mW, 1.25GS/s 6-bit ADC with 2.5GHz internal clock in 130nm CMOS. A new type of architecture that combines flash and SAR enables the lowest power consumption, 6-bit >1GS/s ADC reported to date. This design can be a drop-in replacement for existing flash ADCs since it does require any post-processing or calibration step and has the same latency as flash. 3) A 0.4ps-rms-jitter (integrated from 3kHz to 300MHz offset for >2.5GHz) 1-3GHz tunable, phase-noise programmable clock-multiplier PLL for generating sampling clock to the SAR ADC. A new loop filter structure enables phase error preamplification to lower PLL in-band noise without increasing loop filter capacitor size.
A Power Optimized Pipelined Analog To Digital Converter Design In Deep Sub Micron Cmos Technology
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Author : Chang-Hyuk Cho
language : en
Publisher:
Release Date : 2005
A Power Optimized Pipelined Analog To Digital Converter Design In Deep Sub Micron Cmos Technology written by Chang-Hyuk Cho and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2005 with Analog-to-digital converters categories.
High-speed, medium-resolution, analog-to-digital converters (ADCs) are important building blocks in a wide range of applications. High-speed, medium-resolution ADCs have been implemented by various ADC architectures such as a folding ADC, a subranging ADC, and a pipeline ADC. Among them, pipeline ADCs have proven to be efficient architectures for applications such as digital communication systems, data acquisition systems and video systems. Especially, power dissipation is a primary concern in applications requiring portability. Thus, the objective of this work is to design and build a low-voltage low-power medium-resolution (8-10bits) high-speed pipeline ADC in deep sub-micron CMOS technology. The non-idealities of the circuit realization are carefully investigated in order to identify the circuit requirements for a low power circuit design of a pipeline ADC. The resolution per stage plays an important role in determining overall power dissipation of a pipeline ADC. The pros and cons of both large and small number of bits per-stage are examined. A power optimization algorithm is developed to decide more accurately which approach is better for lower power dissipation. Both identical and non-identical number of bit per-stage approaches are considered and their differences are analyzed. A low-power, low-voltage 10-bit 100Msamples/s pipeline ADC was designed and implemented in a 0.18mm CMOS process. The power consumption was minimized with the right selection of the per-stage resolution based on the result of the power optimization algorithm and by the scaling down the sampling capacitor size in subsequent stages.
Pipelined Analog To Digital Converter And Fault Diagnosis
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Author : Alok Barua
language : en
Publisher:
Release Date : 2020
Pipelined Analog To Digital Converter And Fault Diagnosis written by Alok Barua and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2020 with Analog-to-digital converters categories.
Pipelined architecture analog-to-digital converters (ADCs) have become the architecture of choice for high speed and moderate to high resolution devices. Subsequently, different techniques of the fault diagnosis by built in self-test (BIST) system have been developed. This book gives a rigorous, theoretical and mathematical analysis for the design of pipelined ADCs, along with detailed practical aspects of implementing it in very large-scale integration (VLSI). In each chapter a unique fault diagnosis technique for pipelined ADC has been proposed. Chapter 1 discusses a 1.8V 10-bit 500 mega samples-per-second parallel pipelined ADC, describing the design of high speed, low power, low voltage ADC in CMOS technology. Chapter 2 introduces a BIST system where both the circuit and its diagnosis tool are implemented on the same chip. Chapter 3 examines the design of an oscillation-based BIST system for a 1.8V 8-bit 125-mega samples per second pipelined ADC. Chapter 4 focuses on the evaluation of dynamic parameters of a pipelined ADC with an oscillation-based BIST. Chapter 5 covers reconfigurable BIST architecture for pipelined ADCs. The book is an ideal reference for graduate students and researchers within electrical, electronics and computer engineering.
Accuracy Enhancement Techniques In Low Voltage High Speed Pipelined Adc Design
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Author : Jipeng Li
language : en
Publisher:
Release Date : 2003
Accuracy Enhancement Techniques In Low Voltage High Speed Pipelined Adc Design written by Jipeng Li and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2003 with Analog-to-digital converters categories.