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| Author | : Imran Ahmed |
| Publisher | : Springer |
| Total Pages | : 200 |
| Release | : 2012-05-05 |
| Genre | : Technology & Engineering |
| ISBN | : 9789400731790 |
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.
| Author | : Imran Ahmed |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 225 |
| Release | : 2010-03-10 |
| Genre | : Technology & Engineering |
| ISBN | : 9048186528 |
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.
| Author | : Boris Murmann |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 164 |
| Release | : 2007-05-08 |
| Genre | : Technology & Engineering |
| ISBN | : 1402078404 |
Digitally Assisted Pipeline ADCs: Theory and Implementation explores the opportunity to reduce ADC power dissipation by leveraging digital signal processing capabilities in fine line integrated circuit technology. The described digitally assisted pipelined ADC uses a statistics-based system identification technique as an enabling element to replace precision residue amplifiers with simple open-loop gain stages. The digital compensation of analog circuit distortion eliminates one key factor in the classical noise-speed-linearity constraint loop and thereby enables a significant power reduction. Digitally Assisted Pipeline ADCs: Theory and Implementation describes in detail the implementation and measurement results of a 12-bit, 75-MSample/sec proof-of-concept prototype. The Experimental converter achieves power savings greater than 60% over conventional implementations. Digitally Assisted Pipeline ADCs: Theory and Implementation will be of interest to researchers and professionals interested in advances of state-of-the-art in A/D conversion techniques.
| Author | : Long, Xi |
| Publisher | : |
| Total Pages | : |
| Release | : 2010 |
| Genre | : Analog-to-digital converters |
| ISBN | : |
Analog to digital converter (ADC) design has been an active research topic over the past few decades, as the scaling down of Complementary Metal-Oxide-Semiconductor (CMOS) Integrated Circuit (IC) fabrication process offers continuing room for performance improvement. Various ADC architectures have been proposed by researchers, including flash, successive approximation, sigma-delta and pipeline, etc. Among these architectures, pipeline ADC offers moderate resolution at high conversion speed and is widely used in both civil and military applications. In this thesis, we develop a 9 stage 10 bit pipeline ADC circuit in AMIS C5N process. The whole design methodology, from system simulation to schematic entry, from circuit simulation to post signal analysis is proposed. The operation frequency of the pipeline ADC is pushed to the upper limit of the process used. The ADC is designed and simulated in Cadence environment. Post simulation signal analysis is done in Matlab in order to verify its performance.
| Author | : Michael Figueiredo |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 189 |
| Release | : 2012-08-24 |
| Genre | : Technology & Engineering |
| ISBN | : 146143467X |
This book shows that digitally assisted analog to digital converters are not the only way to cope with poor analog performance caused by technology scaling. It describes various analog design techniques that enhance the area and power efficiency without employing any type of digital calibration circuitry. These techniques consist of self-biasing for PVT enhancement, inverter-based design for improved speed/power ratio, gain-of-two obtained by voltage sum instead of charge redistribution, and current-mode reference shifting instead of voltage reference shifting. Together, these techniques allow enhancing the area and power efficiency of the main building blocks of a multiplying digital-to-analog converter (MDAC) based stage, namely, the flash quantizer, the amplifier, and the switched capacitor network of the MDAC. Complementing the theoretical analyses of the various techniques, a power efficient operational transconductance amplifier is implemented and experimentally characterized. Furthermore, a medium-low resolution reference-free high-speed time-interleaved pipeline ADC employing all mentioned design techniques and circuits is presented, implemented and experimentally characterized. This ADC is said to be reference-free because it precludes any reference voltage, therefore saving power and area, as reference circuits are not necessary. Experimental results demonstrate the potential of the techniques which enabled the implementation of area and power efficient circuits.
| Author | : Kyung Ryun Kim |
| Publisher | : Stanford University |
| Total Pages | : 128 |
| Release | : 2010 |
| Genre | : |
| ISBN | : |
In high-performance pipelined analog-to-digital converters (ADCs), the residue amplifiers dissipate the majority of the overall converter power. Therefore, finding alternatives to the relatively inefficient, conventional class-A circuit realization is an active area of research. One option for improvement is to employ class-AB amplifiers, which can, in principle, provide large drive currents on demand and improve the efficiency of residue amplification. Unfortunately, due to the simultaneous demand for high speed and high gain in pipelined ADCs, the improvements seen in class-AB designs have so far been limited. This dissertation presents the design of an efficient class-AB amplification scheme based on a pseudo-differential, single-stage and cascode-free architecture. Nonlinear errors due to finite DC gain are addressed using a deterministic digital background calibration that measures the circuit imperfections in time intervals between normal conversion cycles of the ADC. As a proof of concept, a 12-bit 30-MS/s pipelined ADC was realized using class-AB amplifiers with the proposed digital calibration. The prototype ADC occupies an active area of 0.36 mm2 in 90-nm CMOS. It dissipates 2.95 mW from a 1.2-V supply and achieves an SNDR of 64.5 dB for inputs near the Nyquist frequency. The corresponding figure of merit is 72 fJ/conversion-step.
| Author | : Jesús Ruiz-Amaya |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 216 |
| Release | : 2011-07-15 |
| Genre | : Technology & Engineering |
| ISBN | : 1441988467 |
This book presents models and procedures to design pipeline analog-to-digital converters, compensating for device inaccuracies, so that high-performance specs can be met within short design cycles. These models are capable of capturing and predicting the behavior of pipeline data converters within less than half-a-bit deviation, versus transistor-level simulations. As a result, far fewer model iterations are required across the design cycle. Models described in this book accurately predict transient behaviors, which are key to the performance of discrete-time systems and hence to the performance of pipeline data converters.
| Author | : Manar El-Chammas |
| Publisher | : Springer Nature |
| Total Pages | : 161 |
| Release | : 2023-05-19 |
| Genre | : Technology & Engineering |
| ISBN | : 3031297008 |
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.
| Author | : João Goes |
| Publisher | : Springer Science & Business Media |
| Total Pages | : 171 |
| Release | : 2006-04-18 |
| Genre | : Technology & Engineering |
| ISBN | : 0306481936 |
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.
