Tradeoffs and Optimization in Analog CMOS Design

Tradeoffs and Optimization in Analog CMOS Design
Title Tradeoffs and Optimization in Analog CMOS Design PDF eBook
Author David Binkley
Publisher John Wiley & Sons
Pages 632
Release 2008-09-15
Genre Technology & Engineering
ISBN 047003369X

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Analog CMOS integrated circuits are in widespread use for communications, entertainment, multimedia, biomedical, and many other applications that interface with the physical world. Although analog CMOS design is greatly complicated by the design choices of drain current, channel width, and channel length present for every MOS device in a circuit, these design choices afford significant opportunities for optimizing circuit performance. This book addresses tradeoffs and optimization of device and circuit performance for selections of the drain current, inversion coefficient, and channel length, where channel width is implicitly considered. The inversion coefficient is used as a technology independent measure of MOS inversion that permits design freely in weak, moderate, and strong inversion. This book details the significant performance tradeoffs available in analog CMOS design and guides the designer towards optimum design by describing: An interpretation of MOS modeling for the analog designer, motivated by the EKV MOS model, using tabulated hand expressions and figures that give performance and tradeoffs for the design choices of drain current, inversion coefficient, and channel length; performance includes effective gate-source bias and drain-source saturation voltages, transconductance efficiency, transconductance distortion, normalized drain-source conductance, capacitances, gain and bandwidth measures, thermal and flicker noise, mismatch, and gate and drain leakage current Measured data that validates the inclusion of important small-geometry effects like velocity saturation, vertical-field mobility reduction, drain-induced barrier lowering, and inversion-level increases in gate-referred, flicker noise voltage In-depth treatment of moderate inversion, which offers low bias compliance voltages, high transconductance efficiency, and good immunity to velocity saturation effects for circuits designed in modern, low-voltage processes Fabricated design examples that include operational transconductance amplifiers optimized for various tradeoffs in DC and AC performance, and micropower, low-noise preamplifiers optimized for minimum thermal and flicker noise A design spreadsheet, available at the book web site, that facilitates rapid, optimum design of MOS devices and circuits Tradeoffs and Optimization in Analog CMOS Design is the first book dedicated to this important topic. It will help practicing analog circuit designers and advanced students of electrical engineering build design intuition, rapidly optimize circuit performance during initial design, and minimize trial-and-error circuit simulations.

Power Trade-offs and Low-Power in Analog CMOS ICs

Power Trade-offs and Low-Power in Analog CMOS ICs
Title Power Trade-offs and Low-Power in Analog CMOS ICs PDF eBook
Author Mihai A.T. Sanduleanu
Publisher Springer Science & Business Media
Pages 228
Release 2005-12-30
Genre Technology & Engineering
ISBN 0306481405

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This volume concerns power, noise and accuracy in CMOS Analog IC Design. The authors show that power, noise and accuracy should be treated in a unitary way, as the three are inter-related. The book discusses all possible practical power-related specs at circuit and architecture level.

Trade-Offs in Analog Circuit Design

Trade-Offs in Analog Circuit Design
Title Trade-Offs in Analog Circuit Design PDF eBook
Author Chris Toumazou
Publisher Springer Science & Business Media
Pages 1065
Release 2007-05-08
Genre Technology & Engineering
ISBN 0306476738

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As the frequency of communication systems increases and the dimensions of transistors are reduced, more and more stringent performance requirements are placed on analog circuits. This is a trend that is bound to continue for the foreseeable future and while it does, understanding performance trade-offs will constitute a vital part of the analog design process. It is the insight and intuition obtained from a fundamental understanding of performance conflicts and trade-offs, that ultimately provides the designer with the basic tools necessary for effective and creative analog design. Trade-offs in Analog Circuit Design, which is devoted to the understanding of trade-offs in analog design, is quite unique in that it draws together fundamental material from, and identifies interrelationships within, a number of key analog circuits. The book covers ten subject areas: Design methodology, Technology, General Performance, Filters, Switched Circuits, Oscillators, Data Converters, Transceivers, Neural Processing, and Analog CAD. Within these subject areas it deals with a wide diversity of trade-offs ranging from frequency-dynamic range and power, gain-bandwidth, speed-dynamic range and phase noise, to tradeoffs in design for manufacture and IC layout. The book has by far transcended its original scope and has become both a designer's companion as well as a graduate textbook. An important feature of this book is that it promotes an intuitive approach to understanding analog circuits by explaining fundamental relationships and, in many cases, providing practical illustrative examples to demonstrate the inherent basic interrelationships and trade-offs. Trade-offs in Analog Circuit Design draws together 34 contributions from some of the world's most eminent analog circuits-and-systems designers to provide, for the first time, a comprehensive text devoted to a very important and timely approach to analog circuit design.

Structured Analog CMOS Design

Structured Analog CMOS Design
Title Structured Analog CMOS Design PDF eBook
Author Danica Stefanovic
Publisher Springer Science & Business Media
Pages 290
Release 2008-10-20
Genre Technology & Engineering
ISBN 1402085737

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Structured Analog CMOS Design describes a structured analog design approach that makes it possible to simplify complex analog design problems and develop a design strategy that can be used for the design of large number of analog cells. It intentionally avoids treating the analog design as a mathematical problem, developing a design procedure based on the understanding of device physics and approximations that give insight into parameter interdependences. The basic design concept consists in analog cell partitioning into the basic analog structures and sizing of these basic analog structures in a predefined procedural design sequence. The procedural design sequence ensures the correct propagation of design specifications, the verification of parameter limits and the local optimization loops. The proposed design procedure is also implemented as a CAD tool that follows this book.

Systematic Design of Analog CMOS Circuits

Systematic Design of Analog CMOS Circuits
Title Systematic Design of Analog CMOS Circuits PDF eBook
Author Paul G. A. Jespers
Publisher Cambridge University Press
Pages 340
Release 2017-10-12
Genre Technology & Engineering
ISBN 1108136737

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Discover a fresh approach to efficient and insight-driven analog integrated circuit design in nanoscale-CMOS with this hands-on guide. Expert authors present a sizing methodology that employs SPICE-generated lookup tables, enabling close agreement between hand analysis and simulation. This enables the exploration of analog circuit tradeoffs using the gm/ID ratio as a central variable in script-based design flows, and eliminates time-consuming iterations in a circuit simulator. Supported by downloadable MATLAB code, and including over forty detailed worked examples, this book will provide professional analog circuit designers, researchers, and graduate students with the theoretical know-how and practical tools needed to acquire a systematic and re-use oriented design style for analog integrated circuits in modern CMOS.

模拟CMOS集成电路设计(国外大学优秀教材——微电子类系列(影印版))

模拟CMOS集成电路设计(国外大学优秀教材——微电子类系列(影印版))
Title 模拟CMOS集成电路设计(国外大学优秀教材——微电子类系列(影印版)) PDF eBook
Author Behzad Razavi
Publisher 清华大学出版社有限公司
Pages 712
Release 2005
Genre Linear integrated circuits
ISBN 9787302108863

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本书介绍了模拟电路设计的基本概念, 说明了CMOS模拟集成电路设计技术的重要作用, 描述了MOS器件的物理模型及工作特性等.

The gm/ID Methodology, a sizing tool for low-voltage analog CMOS Circuits

The gm/ID Methodology, a sizing tool for low-voltage analog CMOS Circuits
Title The gm/ID Methodology, a sizing tool for low-voltage analog CMOS Circuits PDF eBook
Author Paul Jespers
Publisher Springer Science & Business Media
Pages 180
Release 2009-12-01
Genre Technology & Engineering
ISBN 0387471014

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IC designers appraise currently MOS transistor geometries and currents to compromise objectives like gain-bandwidth, slew-rate, dynamic range, noise, non-linear distortion, etc. Making optimal choices is a difficult task. How to minimize for instance the power consumption of an operational amplifier without too much penalty regarding area while keeping the gain-bandwidth unaffected in the same time? Moderate inversion yields high gains, but the concomitant area increase adds parasitics that restrict bandwidth. Which methodology to use in order to come across the best compromise(s)? Is synthesis a mixture of design experience combined with cut and tries or is it a constrained multivariate optimization problem, or a mixture? Optimization algorithms are attractive from a system perspective of course, but what about low-voltage low-power circuits, requiring a more physical approach? The connections amid transistor physics and circuits are intricate and their interactions not always easy to describe in terms of existing software packages. The gm/ID synthesis methodology is adapted to CMOS analog circuits for the transconductance over drain current ratio combines most of the ingredients needed in order to determine transistors sizes and DC currents.