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Solid-State Circuits Magazine, IEEE

Issue 1 • Date winter 2011

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Displaying Results 1 - 25 of 33
  • [Front cover]

    Page(s): C1
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  • Table of contents

    Page(s): 1 - 2
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  • Society Listing

    Page(s): 2
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  • [Contributors]

    Page(s): 3
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  • Welcome to the Winter 2011 Issue! [Editor's Note]

    Page(s): 4
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  • The Talent War [Associate Editor?s View]

    Page(s): 5 - 78
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  • Circuit of Life

    Page(s): 6 - 21
    Save to Project icon | Request Permissions | Click to expandQuick Abstract | PDF file iconPDF (5618 KB) |  | HTML iconHTML  

    I am given the opportunity to talk about myself, but my message is simple. I have always tried to be a better analog designer. I will attempt to explain what aspects of my life have contributed to that. Perhaps this will help make you a better designer as well. View full abstract»

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  • The Research of Prof. Willy Sansen: An Overview

    Page(s): 12 - 13
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    The author discusses his relationship with Willy Sansen, whom he first met in 1969 when Sansen came to the Electrical Engineering and Computer Science (EECS) Department of the University of California, Berkeley, as a new Ph.D. candidate. The author supervised his Ph.D. research in the field of analog integrated circuit (IC) design for the next three years and got to know him well. Sansen arrived at Berkeley at an exciting time in the development of ICs. Silicon ICs were rapidly taking over commercial digital applications and were making major inroads in the analog circuits field as well. Sansen quickly realized that to make progress on both the theoretical analysis and computer simulation of these circuits, he would need to simultaneously tackle the problem of device characterization for IC processes. The state of the art in device modeling at the time was quite crude, particularly with regard to the parasitic elements associated with bipolar transistors, the dominant active devices then in widespread use. Sansenï¿¿ï¿¿ï¿¿s research on this topic was described in a 1972 paper that has been widely referenced over the years. He then applied this modeling expertise to the characterization of signal distortion in bipolar transistor VGAs. He combined closed-form analytical expressions with computer simulation that, for the first time, enabled circuit designers to quickly predict the nonlinear behavior of this important class of circuits. This work then led to the realization of methods of maximizing the dynamic range of VGAs. This research required inclusion of VGA device electrical noise processes in the analysis and explained for the first time a number of aspects of VGA noise performance that had been observed empirically but were not well understood. New circuit design ideas such as bleed-current injection to the common-emitter points of the main differential pairs were introduced, and these techniques are being used today in a wide range of circuit applications in a number- - of different IC technologies at frequencies as high as 75 GHz. View full abstract»

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  • But Is It Relevant?

    Page(s): 22 - 26
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    As the author have spent most of his professional life in a mixture of telecoms and semiconductors, talking about the relevance of analog technology to these domains is a fairly obvious choice. And in doing his homework, He came to the conclusion that what happened in this area of industry was not at all easy to foresee. He think it will be valuable to make this history the theme of this article, since the insights gleaned may well be applicable to other industrial fields. Indeed, He contributed to many expensive projects that worked perfectly but were never sold, and He also saw competitors doing complicated and often stupid things that nevertheless gained market traction. In other words, what was supposed to be very relevant often was not and vice versa- and this also applies to the endless analog-versus-digital debate. View full abstract»

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  • Lighting the Way

    Page(s): 27 - 34
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    In this article we present our view of the impact that Prof. Willy Sansen had during his four-decade-long career of teaching and research. Striving for excellence in both of these areas was key in his work. First we describe the general thread running through Sansen's research work. In one sentence: he developed a continuum extending from circuit-level models created by means of thorough analysis of elementary circuit elements to the fundamental analog building blocks, like operational amplifiers and transconductance amplifiers, that make up complex analog-to-digital converters, filters, and so on. The impact of his research has been huge because it established a way of doing analog design in a digital world. In the next section, which focuses on the didactic aspects of Sansen's work that have been so dear to his heart, we will explain how Sansen managed to teach the fundamentals of analog electronic circuits using methods that were extremely innovative. The final section briefly describes what we see as Sansen's legacy: the MICAS research team he founded, which will maintain the high standards he set for decades to come. View full abstract»

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  • Full-Throttle DSL

    Page(s): 35 - 41
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    Broadband connectivity and new ser vices such as YouTube, IP video, and cloud computing are changing our lives, and we would never want to miss out on them. The associated data rates are as predictable as Moore's law, as they are enabled by the availability of low-cost, highly integrated broad band communication ICs. Advanced modulation and coding incorporating sophisticated adaptive signal processing techniques are pushing the data rate close to the theoretical limit given by Shannon's law. Important advantages such as increased bandwidth, improved energy efficiency, feature enhance ment, and cost reduction are conferred by innovations in integrated circuits and technologies. Finally, standardization with the involvement of semiconductor and telecom system companies and also service and content providers is most important for the success and deployment of new communication technologies and services. View full abstract»

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  • Van der Spiegel, J., Renaissance Man

    Page(s): 42 - 46
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  • High-Efficiency Transmission for Medical Implants

    Page(s): 47 - 59
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    In this article, by means of appropriate circuit design the total efficiency can be optimized. On a circuit level, a high efficiency for an inductive power link can be obtained by using a class E amplifier and an active power regulator. The class E amplifier has three advantages: it has a high efficiency, it has a minimal power consumption when the secondary coil of the inductive link is shorted, and it reaches its normal operation almost immediately after turn on (although a high-Q LC circuit is involved). These properties are exploited in the design of two different power regulators, which are simple on-off control systems. The power regulators have never been realized, but the Micro-Cap simulations are really very promising. The author is hopeful that these considerations may inspire young designers to optimize inductive powering systems. Recent papers in reference [6], [7] show that modeling and designing an inductive power link with a high efficiency is still a challenge. View full abstract»

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  • Gigabit Communications over Plastic Optical Fiber

    Page(s): 60 - 69
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    Plastic optical fiber (POF) is a fiber technology developed decades ago to provide low-data-rate communications with easy handling and high immunity to electromagnetic interference. A classic POF data link consists of three parts: a transmitter, a driver, a light source, a communication channel, and a receiver. As an alternative, a POF system potentially provides a higher data rate for longer channel lengths and is considerably easier to install. View full abstract»

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  • Colleagues Reflect on Willy Sansen's Road to the 2011 IEEE Donald O. Pederson Award [People]

    Page(s): 70 - 71
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  • SSCS DLs Amerasekera, Maloberti, Rusu, and Su Visit SSCS-Brazil and Uruguay [People]

    Page(s): 72 - 73
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  • SSCS Membership Chair Appointed Director of Taiwan's National Chip Implementation Center (CIC) [People]

    Page(s): 74
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  • Sedra and Smith Receive Lifetime Achievement Awards from the Information Technology Association of Canada [People]

    Page(s): 75
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  • Un-Ku Moon Delivers DL Talks on Emerging ADC's [People]

    Page(s): 75 - 76
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  • DL Marcel Pelgrom Presents “The Different Faces of Variability” at SSCS-Penang and Singapore in October [People]

    Page(s): 76 - 78
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  • Congratulations New Seniors [People]

    Page(s): 77
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  • 2010 International Analog VLSI Workshop Convenes In Pavia [Chapters]

    Page(s): 79 - 80
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  • 20th Workshop on Advances in Analog Circuit Design (AACD) at Katholieke Universiteit,Leuven, 5-7 April 2011 [Chapters]

    Page(s): 80
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  • DL Betty Prince is a Hit at SSCS-Central North Carolina [Chapters]

    Page(s): 81
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  • DIPED 2010 Celebrates Birthday of SSCS-West Ukraine Founder Prof. Nikolai Voitovich[Chapters]

    Page(s): 81 - 85
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Aims & Scope

Each issue of IEEE Solid-State Circuits Magazine is envisioned as a self-contained resource for fundamental theories and practical advances within the field of integrated circuits

Full Aims & Scope

Meet Our Editors

Editor-in-Chief
Mary Lanzerotti
marylanzerotti@post.harvard.edu