Cmos Optical Preamplifier Design Using Graphical Circuit Analysis

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Cmos Optical Preamplifier Design Using Graphical Circuit Analysis Microform

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Author : Khoman S. Phang
language : en
Publisher: National Library of Canada = Bibliothèque nationale du Canada
Release Date : 2001

Cmos Optical Preamplifier Design Using Graphical Circuit Analysis Microform written by Khoman S. Phang and has been published by National Library of Canada = Bibliothèque nationale du Canada this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

Cmos Optical Preamplifier Design Using Graphical Circuit Analysis

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Author : Khoman S. Phang
language : en
Publisher:
Release Date : 2001

Cmos Optical Preamplifier Design Using Graphical Circuit Analysis written by Khoman S. Phang and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2001 with categories.

New requirements on optical receivers are being driven by the rapid expansion of optical communications beyond traditional fiber-optic links. This thesis discusses the design of transimpedance amplifiers that are used in the preamplifier stage of optical receivers. The three specific requirements that are addressed here are a wide dynamic range, ambient light rejection, and low-voltage operation. To achieve a wide dynamic range, we present a fully-differential, variable-gain CMOS transimpedance amplifier. The proposed topology is simpler than previous designs and has improved stability. The implemented design consumes 8mW at 3V, and provides 70 MHz bandwidth with a dynamic range of 77dB, a maximum transimpedance gain of 19k[Omega] and a gain range of 32dB. To reject ambient light, we place an active feedback loop around the transimpedance amplifier. This topology eliminates the need for large passive components and improves the regulation of the photodiode bias voltage. However, the lower-frequency limit of this topology is dependent on the ambient light level. We experimentally verify this technique, and analyze the stability requirements of the feedback loop. To achieve low-voltage operation, we develop a CMOS transimpedance amplifier capable of IV operation without the use of low-threshold MOS transistors. The design has a wide output swing and maximizes the available bias voltage for the photodiode. The biasing of the MOS feedback resistor is performed using a charge pump to generate a stable gate voltage--a technique called dynamic gate biasing (DGB). The proposed design was implemented as part of an optical receiver front-end which also included two post amplifiers. The resulting front-end consumes 1mW from a 1V supply and provides 210k[Omega] transimpedance gain over a 50MHz bandwidth. Also included in this thesis is the development and application of a graphical circuit analysis technique called DPI/SFG analysis that is based on driving-point impedances (DPI) and signal-flow graphs (SFG). We develop a general formulation of the technique, illustrate its use on a number of circuit examples, and apply it to the design and optimization of the low-voltage transimpedance amplifier.

Linear Cmos Rf Power Amplifiers For Wireless Applications

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Author : Paulo Augusto Dal Fabbro
language : en
Publisher: Springer Science & Business Media
Release Date : 2010-06-22

Linear Cmos Rf Power Amplifiers For Wireless Applications written by Paulo Augusto Dal Fabbro 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 2010-06-22 with Technology & Engineering categories.

Advances in electronics have pushed mankind to create devices, ranging from - credible gadgets to medical equipment to spacecraft instruments. More than that, modern society is getting used to—if not dependent on—the comfort, solutions, and astonishing amount of information brought by these devices. One ?eld that has continuously bene?tted from those advances is the radio frequency integrated c- cuit (RFIC) design, which in its turn has promoted countless bene?ts to the mankind as a payback. Wireless communications is one prominent example of what the - vances in electronics have enabled and their consequences to our daily life. How could anyone back in the eighties think of the possibilities opened by the wireless local area networks (WLANs) that can be found today in a host of places, such as public libraries, coffee shops, trains, to name just a few? How can a youngster, who lives this true WLAN experience nowadays, imagine a world without it? This book dealswith the design oflinearCMOS RF PowerAmpli?ers(PAs). The RF PA is a very important part of the RF transceiver, the device that enables wireless communications. Two important aspects that are key to keep the advances in RF PA design at an accelerate pace are treated: ef?ciency enhancement and frequen- tunable capability. For this purpose, the design of two different integrated circuits realizedina0. 11μmtechnologyispresented,eachoneaddressingadifferentaspect. With respect to ef?ciency enhancement, the design of a dynamic supply RF power ampli?er is treated, making up the material of Chaps. 2 to 4.

Algorithmic Techniques For The Polymer Sciences

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Author : Bradley S. Tice
language : en
Publisher: CRC Press
Release Date : 2014-10-27

Algorithmic Techniques For The Polymer Sciences written by Bradley S. Tice and has been published by CRC Press this book supported file pdf, txt, epub, kindle and other format this book has been release on 2014-10-27 with Mathematics categories.

This new book—the first of its kind—examines the use of algorithmic techniques to compress random and non-random sequential strings found in chains of polymers. The book is an introduction to algorithmic complexity. Examples taken from current research in the polymer sciences are used for compression of like-natured properties as found on a chain of polymers. Both theory and applied aspects of algorithmic compression are reviewed. A description of the types of polymers and their uses is followed by a chapter on various types of compression systems that can be used to compress polymer chains into manageable units. The work is intended for graduate and postgraduate university students in the physical sciences and engineering.

Ieee Transactions On Circuits And Systems

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Author :
language : en
Publisher:
Release Date : 2006

Ieee Transactions On Circuits And Systems written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Electric circuits categories.

Third International Conference On Solid State Lasers For Application To Inertial Confinement Fusion

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Author : W. Howard Lowdermilk
language : en
Publisher: SPIE-International Society for Optical Engineering
Release Date : 2006

Third International Conference On Solid State Lasers For Application To Inertial Confinement Fusion written by W. Howard Lowdermilk and has been published by SPIE-International Society for Optical Engineering this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Science categories.

Dissertation Abstracts International

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Author :
language : en
Publisher:
Release Date : 2006

Dissertation Abstracts International written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2006 with Dissertations, Academic categories.

American Doctoral Dissertations

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Author :
language : en
Publisher:
Release Date : 2002

American Doctoral Dissertations written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Dissertation abstracts categories.

Ieee Circuits Devices

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Author :
language : en
Publisher:
Release Date : 1992

Ieee Circuits Devices written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1992 with Electrical engineering categories.

Analog Circuit Design

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Author : Herman Casier
language : en
Publisher: Springer Science & Business Media
Release Date : 2008-03-19

Analog Circuit Design written by Herman Casier 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 2008-03-19 with Technology & Engineering categories.

Analog Circuit Design is based on the yearly Advances in Analog Circuit Design workshop. The aim of the workshop is to bring together designers of advanced analogue and RF circuits for the purpose of studying and discussing new possibilities and future developments in this field. Selected topics for AACD 2007 are: (1) Sensors, Actuators and Power Drivers for the Automotive and Industrial Environment (Tue 27 March) - Chaired by Herman Casier, AMI Semiconductor Fellow, Belgium; (2) Integrated PA's from Wireline to RF (Wed 28 March) - Chaired by Prof. Michiel Steyaert, Catholic University, Leuven; (3) Very High Frequency Front Ends (Thu 29 March) - Chaired by Prof. Arthur van Roermund, Eindhoven University of Technology.