Dynamic Offset Compensated CMOS Amplifiers

Dynamic Offset Compensated CMOS Amplifiers PDF Author: Frerik Witte
Publisher: Springer Science & Business Media
ISBN: 9048127564
Category : Technology & Engineering
Languages : en
Pages : 178

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Book Description
Dynamic Offset-Compensated CMOS Amplifiers describes the theory, design and realization of dynamic offset compensated CMOS amplifiers. It focuses on the design of general-purpose wide-band operational amplifiers and instrumentation amplifiers. Two offset compensation techniques are described: auto-zeroing and chopping. Several topologies are discussed, with which these techniques can be used in the design of wide-band dynamic offset-compensated amplifiers. Four implementations are discussed in detail: two low-offset wide-band operational amplifiers, a low-offset instrumentation amplifier, and a low-offset current-sense amplifier, which can sense the current drawn from supply voltages up to 28V .

Dynamic Offset Compensated CMOS Amplifiers

Dynamic Offset Compensated CMOS Amplifiers PDF Author: Frerik Witte
Publisher: Springer Science & Business Media
ISBN: 9048127564
Category : Technology & Engineering
Languages : en
Pages : 178

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Book Description
Dynamic Offset-Compensated CMOS Amplifiers describes the theory, design and realization of dynamic offset compensated CMOS amplifiers. It focuses on the design of general-purpose wide-band operational amplifiers and instrumentation amplifiers. Two offset compensation techniques are described: auto-zeroing and chopping. Several topologies are discussed, with which these techniques can be used in the design of wide-band dynamic offset-compensated amplifiers. Four implementations are discussed in detail: two low-offset wide-band operational amplifiers, a low-offset instrumentation amplifier, and a low-offset current-sense amplifier, which can sense the current drawn from supply voltages up to 28V .

Dynamic Offset Compensated CMOS Amplifiers

Dynamic Offset Compensated CMOS Amplifiers PDF Author: Johan Frederik Witte
Publisher:
ISBN: 9789081331623
Category :
Languages : en
Pages : 160

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Book Description


CMOS Current Amplifiers

CMOS Current Amplifiers PDF Author: Giuseppe Palmisano
Publisher: Springer Science & Business Media
ISBN: 1461551358
Category : Technology & Engineering
Languages : en
Pages : 171

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Book Description
CMOS Current Amplifiers presents design strategies for high performance current amplifiers based on CMOS technology. After an introduction to various architectures of operational amplifiers, the operating principles of the current amplifier are outlined. This book provides the reader with simple and compact design equations for use in a pencil and paper design and the following simulation step. Chapter 1 introduces the general aspects of current amplifiers. After a preliminary classification of operational amplifiers, ideal blocks and models are discussed for different architectures and a first high-level comparison is made between traditional amplifiers and current amplifiers. Analysis and examples of basic circuits, as well as signal processing applications involving current amplifiers, are also given. Non-idealities and second- order effects causing limitations in performance are then discussed and evaluated. Chapter 2 focuses on low-drive current amplifiers. Several design examples for current conveyors and class A current amplifiers are discussed in detail and design equations are presented for the main performance parameters, which allows a good trade-off between requirements. High-performance solutions for high bandwidth and low voltage capability are also considered, and, finally, current comparators with progressively enhanced performance are reported and analyzed critically. Chapter 3 deals with current amplifiers for off-chip loads. Several class AB current-mode output stages are discussed and design strategies which improve performance are presented. A detailed analysis of non-ideal effect is carried out with particular emphasis on linearity. Design examples are given and circuit arrangements for further developments are included. CMOS Current Amplifiers serves as an excellent reference for researchers and professionals of analog IC design, and may also be used as an advanced text on current amplifiers.

Frequency Compensation Techniques for Low-Power Operational Amplifiers

Frequency Compensation Techniques for Low-Power Operational Amplifiers PDF Author: Rudy G.H. Eschauzier
Publisher: Springer Science & Business Media
ISBN: 147572375X
Category : Technology & Engineering
Languages : en
Pages : 255

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Book Description
Frequency Compensation Techniques for Low-Power Operational Amplifiers is intended for professional designers of integrated amplifiers, emphasizing low-voltage and low-power solutions. The book bridges the gap between the professional designer's needs and available techniques for frequency compensation. It does so by explaining existing techniques and introducing several new techniques including Hybrid Nested Miller compensation, Multipath Miller Zero cancellation and Multipath Conditionally Stable compensation. All compensation techniques are treated in a stage-number-based order, progressing from a single transistor to circuits with six stages and more. Apart from discussing the mathematical basis of the compensation methods, the book provides the reader with the factual information that is required for practicing the design of integrated feedback amplifiers and many worked out examples. What is more, many bipolar and CMOS operational amplifier realizations, along with their measurement results, prove the effectiveness of the compensation techniques in real-life circuits. The text focuses on low-voltage, low-power integrated amplifiers. Many of the presented bipolar circuits operate at supply voltages down to 1V, while several CMOS amplifiers that function correctly just slightly above this voltage are demonstrated. The lowest measured power consumption amounts to 17muW for a class AB CMOS opAmp with 120dB gain. Despite this attention to low voltage and low power, the frequency compensation strategies provided are universally applicable. The fundamental approach followed leads to efficient compensation strategies that are well guarded against the parameter variations inherent to the mass-fabrication of integrated circuits. The book is essential reading for practicing analog design engineers and researchers in the field. It is also suitable as a text for an advanced course on the subject.

Design of CMOS Operational Amplifiers

Design of CMOS Operational Amplifiers PDF Author: Rasoul Dehghani
Publisher: Artech House
ISBN: 1608071537
Category : Technology & Engineering
Languages : en
Pages : 206

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Book Description
CMOS operational amplifiers (Op Amps) are one of the most important building blocks in many of todays integrated circuits. This cutting-edge volume provides you with an analytical method for designing CMOS Op Amp circuits, placing emphasis on the practical aspects of the design process. This unique book takes an in-depth look at CMOS differential amplifiers, explaining how they are the main part of all Op Amps. The book presents important details and a design method for the different architectures of single ended Op Amps. You find complete chapters dedicated to the critical issues of CMOS output stages, fully differential Op Amps, and CMOS reference generators. This comprehensive book also includes an introduction to CMOS technology and the basics of the physical aspects of MOS transistors, providing you with the foundation needed to fully master the material.

CMOS Current Amplifiers

CMOS Current Amplifiers PDF Author: Kimmo Koli
Publisher: Springer Science & Business Media
ISBN: 0306480034
Category : Technology & Engineering
Languages : en
Pages : 294

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Book Description
This "current-amplifier cookbook" contains an extensive review of different current amplifier topologies realisable with modern CMOS integration technologies. The book derives the seldom-discussed issue of high-frequency distortion performance for all reviewed amplifier topologies, using as simple and intuitive mathematical methods as possible.

Analysis of Bipolar and CMOS Amplifiers

Analysis of Bipolar and CMOS Amplifiers PDF Author: Amir M. Sodagar
Publisher: CRC Press
ISBN: 1351835696
Category : Technology & Engineering
Languages : en
Pages : 366

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Book Description
The classical approach to analog circuit analysis is a daunting prospect to many students, requiring tedious enumeration of contributing factors and lengthy calculations. Most textbooks apply this cumbersome approach to small-signal amplifiers, which becomes even more difficult as the number of components increases. Analysis of Bipolar and CMOS Amplifiers offers students an alternative that enables quick and intuitive analysis and design: the analysis-by-inspection method. This practical and student-friendly text demonstrates how to achieve approximate results that fall within an acceptable range of accuracy and are based on sound scientific principles. Working from the basics of amplifiers and transistors to biasing, single- and multistage amplifiers, current sources and mirrors, and analysis at midband, low, and high frequencies, the author demonstrates the interrelationship between behavior in both the time and frequency domains and balances the discussion between bipolar and CMOS circuits. Each chapter closes with a set of simulation examples in SPICE and MATLAB® that give students hands-on experience applying the concepts and methods using industry-standard tools. Building a practical working knowledge around a solid theoretical framework, Analysis of Bipolar and CMOS Amplifiers prepares your students to meet the challenges of quick and accurate approximations and software-based analysis awaiting them in the workplace.

A New Family of CMOS Cascode-Free Amplifiers with High Energy-Efficiency and Improved Gain

A New Family of CMOS Cascode-Free Amplifiers with High Energy-Efficiency and Improved Gain PDF Author: Ricardo Filipe Sereno Póvoa
Publisher: Springer
ISBN: 3319952072
Category : Technology & Engineering
Languages : en
Pages : 153

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Book Description
This book addresses the need for energy-efficient amplifiers, providing gain enhancement strategies, suitable to run in parallel with lower supply voltages, by introducing a new family of single-stage cascode-free amplifiers, with proper design, optimization, fabrication and experimental evaluation. The authors describe several topologies, using the UMC 130 nm CMOS technology node with standard-VT devices, for proof-of-concept, achieving results far beyond what is achievable with a classic single-stage folded-cascode amplifier. Readers will learn about a new family of circuits with a broad range of applications, together with the familiarization with a state-of-the-art electronic design automation methodology used to explore the design space of the proposed circuit family.

Compensation Techniques for Internal CMOS Operational Amplifiers

Compensation Techniques for Internal CMOS Operational Amplifiers PDF Author: Guy Fortier
Publisher:
ISBN:
Category : Operational amplifiers
Languages : en
Pages : 262

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Book Description


Precision Instrumentation Amplifiers and Read-Out Integrated Circuits

Precision Instrumentation Amplifiers and Read-Out Integrated Circuits PDF Author: Rong Wu
Publisher: Springer Science & Business Media
ISBN: 1461437318
Category : Technology & Engineering
Languages : en
Pages : 199

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Book Description
This book presents innovative solutions in the design of precision instrumentation amplifier and read-out ICs, which can be used to boost millivolt-level signals transmitted by modern sensors, to levels compatible with the input ranges of typical Analog-to-Digital Converters (ADCs). The discussion includes the theory, design and realization of interface electronics for bridge transducers and thermocouples. It describes the use of power efficient techniques to mitigate low frequency errors, resulting in interface electronics with high accuracy, low noise and low drift. Since this book is mainly about techniques for eliminating low frequency errors, it describes the nature of these errors and the associated dynamic offset cancellation techniques used to mitigate them.