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Links to all sorts of "good stuff," mostly on the ADI Web site
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40-Year Interactive Timeline -- Take a historical tour of ADI's 40-year history.
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Power Distribution Network Design Methodologies, IEC Publications, March 2008
Power Distribution Network Design Methodologies is a collection of cogently written articles by 49 industry experts that fills the void on PDN design procedures, and addresses topics such as dc-to-dc converters, selection of bypass capacitors, DDR2 memory systems, powering of FPGAs, VRM-compliant converters, and synthesis of impedance profiles.
Linear Circuit Design Handbook, Edited by Hank Zumbahlen, Newnes, February 2008 , ISBN 978-0-7506-8703-4
Effective analog circuit design requires a strong understanding of linear devices. Linear Circuit Design Handbook bridges the gap between component theory and practical circuit design. Providing complete coverage of analog components and showing how to use them effectively, it serves as a useful reference for engineers involved in analog and mixed-signal design. See a picture and the Table of Contents. Analog Dialogue readers can read a sample chapter, and get a 20% discount when they order this book directly from Newnes. Enter discount code 92222.
Audio Anecdotes III, Tools, Tips, and Techniques for Digital Audio, Edited by Ken Greenebaum and Ronen Barzel, A.K. Peters, December 2007, ISBN 978-1-56881-215-1
This book is the third in AK Peters’s series, Audio Anecdotes, all devoted to problem-solving and practical explanations in the area of digital audio. Unfortunately, it would also appear to be the last in this remarkable series. A thorough technical review of this work could span several pages; this much shorter review, written by Vladimir Botchev, comprises impressions from reading the book and using the tools and techniques described.
Embedded Systems: World Class Designs, by Jack Ganssle, et al, Newnes, 2008, ISBN: 978-0-7506-8625-9
This book covers the gamut of embedded design--from hardware to software to integrated embedded systems--with a strongly pragmatic emphasis. A collection of the best material from the Newnes portfolio, it discusses specific design techniques as well as various approaches to solving embedded design problems, thus helping readers to successfully apply theory to actual design tasks.
Embedded Software: Know It All, by Jean Labrosse, et al, Newnes, 2007, ISBN: 978-0-7506-8583-2
Embedded software, found in everything from garage door openers to implanted medical devices, may be the most difficult part of any embedded design project. This book, assembled from the works of noted experts, covers the development, testing, and debugging of embedded software, including best practice techniques, proven coding methods, practical examples of driver development, and real-world approached to networking.
Embedded Hardware: Know It All, by Jack Ganssle, et al, Newnes, 2007, ISBN: 978-0-7506-8584-9
This book covers both the art and the science of embedded hardware design, providing designers with essential information on microcontrollers, memory, logic, buses, and I/O. Assembled from the works of noted experts, it covers topics such as bus topologies, timing analysis, networking, interfacing to sensors, and criteria for selecting the optimal microcontroller for a given application.
Embedded Signal Processing with the Micro Signal Architecture, by Woon-Seng Gan and Sen M. Kuo, Wiley Interscience, 2007, ISBN: Print 978-0471738411, Online 978-0470112274
ADI's Blackfin® architecture, which employed a relatively new approach at the time of its design, has since made a major impact. Up to now, however, no mainstream publication has adequately described this powerful and flexible architecture, its available software tools and its real-world applications. The gap has been more than filled by this book, which will be useful to any engineer involved in the design, use, or servicing of Blackfin-based DSP systems. Written as an application tutorial, the book contains an impressive number of hands-on experiments and examples. The authors also maintain a web site, where all relevant application software—and updates to it—can be found. Read the complete review, written by Vladimir Botchev of Analog Devices.
A Designer's Guide to Instrumentation Amplifiers - 3rd Edition, By Charles Kitchin and Lew Counts, 2006
Instrumentation amplifiers (in-amps) are used to amplify weak signals in the
presence of strong interference and noise. This
Order a free copy of A Designer's Guide to Instrumentation Amplifiers (3nd Edition).
Download a free copy of A Designer's Guide to Instrumentation Amplifiers (3nd Edition).
The Data Conversion Handbook, Edited by Walt Kester, Newnes, 2005, ISBN 0-7506-7841-0
The Data Conversion Handbook is written for design engineers who routinely use data converters and related circuitry. Comprising Data Converter History, Fundamentals of Sampled Data Systems, Data Converter Architectures, Data Converter Process Technology, Testing Data Converters, Interfacing to Data Converters, Data Converter Support Circuits, Data Converter Applications, and Hardware Design Techniques, it may be the ultimate expression of product "augmentation" as it relates to data converters. The last chapter discusses practical issues, including common pitfalls and solutions related to the non-ideal properties of passive components.
Analog-Digital Conversion, Edited by Walt Kester, Analog Devices, Inc. 2004, ISBN 0-916550-27-3
Analog-Digital Conversion presents a comprehensive set of notes presented in a recent Analog Devices seminar series on data converters. In a digital world, A/D and D/A conversion is essential to translate between analog real-world physical variables and the abstract 1s and 0s of digital processing. The book offers a hint of its breadth, as well as its orientation to practical design: Data-converter history; Fundamentals of sampled-data systems; Data-converter architectures; Data-converter process technology; Testing data converters; Interfacing to data converters; Data-converter support circuits; Data-converter applications; and Hardware design techniques.
The Data Conversion Handbook can be purchased from your favorite bookseller.
Analog-Digital Conversion seminar notes can be downloaded from the Analog Devices website.
Op Amp Applications Handbook, Edited by Walt Jung, Newnes, 2005, ISBN 0-7506-7844-5
Op Amp Applications Handbook comprises Op Amp Basics, Specialty Amplifiers, Using Op Amps with Data Converters, Sensor Signal Conditioning, Analog Filters, Signal Amplifiers, Hardware and Housekeeping Techniques, and Op Amp History. As the name implies, it covers the application of op amps, but does so on a broader scope. It also covers a host of closely related design topics, making it a formidable toolkit for the analog designer.
Op Amp Applications, Edited by Walt Jung, Analog Devices, Inc. 2002, ISBN 0-916550-26-5
This 970-page volume may well be the ultimate op amp book. It is brimming with application circuits, handy design tips, historical perspectives, and in-depth looks at the latest techniques to simplify designs and improve their performance. But this is more than just the last word on applications. A brief but fascinating History section outlines the early development of the feedback amplifier, starting with H. S. Black’s invention of seventy years ago—and provides priceless insights into the application needs, technological developments, and creative personalities that drove the many generations of op-amp designs.
Op Amp Applications Handbook can be purchased from your favorite bookseller, or individual chapters of the original Op Amp Applications seminar notes can be downloaded from the Analog Devices website.
Embedded Media Processing, by David Katz and Rick Gentile, Newnes, 2005, ISBN 0-7506-7912-3
Digital signal processors are good at crunching numbers, and microcontrollers easily provide control functions, but how should you choose an embedded processor when you want to add audio and video signal processing to your system? How is memory allocated and managed for best performance? How must dataflow be optimized to take best advantage of a processor's limited resources? How can power consumption be optimized? Embedded Media Processing answers all of these questions and many more—and does so in an easy-to-read, enjoyable manner—giving readers the tools required to successfully implement embedded designs. Click here for the complete review.
Mixed-Signal and DSP Design Techniques, edited by Walt Kester, Newnes, 2003, covers sampled data systems, choosing A/D and D/A converters for DSP applications, fast Fourier transforms, digital filters, selecting DSP hardware, interfacing to DSP chips, and hardware design techniques. This book explains signal processing hardware--how it works, how to interface to it, and how to design and debug it. Master the art and science of mixed-signal and DSP design with this informative and practical guide.
Mixed-Signal and DSP Design Techniques can be purchased from your favorite bookseller, or individual chapters of the original seminar notes can be downloaded from the Analog Devices website.
Analog Devices Technical Book Store
Now available, a series of ADI Technical books covering a wide range of design topics, from Practical Analog Techniques to Mixed Signal and DSP Design. These books have been written by the Applications Engineering Staff at Analog Devices, including well-known authors such as Walt Kester, Walt Jung, James Bryant and Hank Zumbahlen. Books are priced at $40.00 each. Also available at no cost is the second edition of "A Designer's Guide to Instrumentation Amplifiers" by Charles Kitchin and Lew Counts.
Evolution from Operational Amplifier to Data Amplifier, by Robert Demrow, Analog Devices, 09/1968
Philbrick Applications Manual for Computing Amplifiers for Modeling, Measuring, Manipulating, and Much Else, Contributors include Dr. Peter Hansen, Bruce Seddon, Robert Malter, and Bob Pease. Edited by Dan Sheingold, 1966. Now out of print, it has been rendered online by its original editor and the staff at Analog Devices, Inc. © 2004. In 1965 early IC op amps lacked the support of suitable texts to educate, inform, and stimulate design engineers. In response, George A. Philbrick Researches, Inc. devised this Applications Manual, using Ted Gams's unique modular approach to apportioning text and graphics to individual topics. It was eagerly adopted and is fondly remembered by designers of an earlier generation; its ideas still remain fresh several generations later. A brief history of its origins.
Recent Articles in the Trade Press
Mike Meehan,
Eliminating audio system
noise from HDTV , Audio DesignLine, 6/26/2008
Wassim Bassalee
and Yosef Stein,
Acceleration of Symmetric-Key Algorithms in Software, embedded.com,
6/23/2008
Del Jones and
Hisaki Fujiwara, CEC-enabled
HDMI system design for multi-vendor compatibility , Video/Imaging DesignLine,
6/20/2008
Barrie Gilbert,
Noise Figure and Logarithmic Amplifiers [The Wit and Wisdom of Dr. Leif--6*],
Analog Dialogue, 6/4/2008
Ken Kavanagh,
Open-Loop Calibration Techniques for Digital-to-Analog Converters, Analog
Dialogue, 6/4/2008
Corey Petersen,
Portable Ultrasound Becomes a Reality, Electronic Product Design, 6/1/2008
Brad Brannon,
Nine Key ADC
Specifications You Must Know, ECN, 6/1/2008
John Ardizzoni,
Capaciticectomy? Sounds Awfully Painful!, Design News, 6/1/2008
Recent Engineer-to-Engineer and Application Notes
The following recent engineer-to-engineer and application notes are listed in chronological order. Complete list of Application Notes, arranged by topic.
June 2008
Meet FCC Part
15, Subpart B, Class A and B standards with iCoupler
Digital Isolators
AN-0971: Control of Radiated Emissions With isoPower Devices
iCoupler® digital isolators with integrated isolated power (isoPower) employ isolated dc-to-dc converters that switch at frequencies as high as 300 MHz. These high frequencies typically raise concerns about radiated emissions. PCB layout and construction is a very important tool for controlling radiated emissions from applications containing these components. This 8-page Application Note identifies the radiation mechanisms and offers specific guidance on addressing them.
Avoid Pitfalls
When Using Successive-Approximation Analog-to-Digital Converters
AN-931: Understanding PulSAR ADC Support Circuitry
Successive approximation register (SAR) analog-to-digital converters (ADCs) use various new techniques for improved resolution. Understanding how these devices work is important in preventing malfunction and erroneous issues. This 4-page Application Note discusses in general the pitfalls that occur regularly when using SAR ADCs and, more importantly, how to easily prevent them.
May 2008
In-Circuit
Programming of ADuC703x Flash Memory via Local Interconnect Network (LIN) Bus
AN-946: Flash/EE Memory Programming via LIN—Protocol 6
A key feature of the ADuC703x family of precision battery sensors is its ability to download code—while in-circuit—to on-chip Flash/EE memory via the LIN communications bus. This 8-page Application Note describes the download protocol (Protocol 6) implemented on the ADuC7032-8L and ADuC7033 to enable users to develop their own LIN programming tools either for production programming or application update. Protocol 6 follows the procedure defined by ISO/DIS 14229-1.2, Road Vehicles Unified Diagnostic Services.
Build a
Multifunction Energy Meter with LCD Display
AN-916: A Multifunction Power Meter Reference Design Based on the ADE71xx/ADE75xx Family
The ADE71xx/ADE75xx family of energy-measurement ICs integrates an analog front-end and fixed-function DSP with an enhanced 8052 MCU core, RTC, LCD driver, and other peripherals, enabling an electronic energy meter with an LCD display. This 24-page Application Note describes a single-phase multifunction energy meter design based on the ADE7569. This meter, designed for single-phase, 2-wire distribution systems, measures active, reactive, and apparent energy, as well as rms current and voltage. This design can be used with any model in the family with a few modifications. A software program, written in C, is available as part of the evaluation kit.
In-Circuit
Programming of ADuC7034 Flash Memory via Local Interconnect Network (LIN) Bus
AN-881: Flash/EE Memory Programming via LIN—Protocol 4
A key feature of the ADuC7034 precision battery sensor is its ability to download code—while in-circuit—to on-chip Flash/EE memory via the LIN communications bus. This 8-page Application Note describes the download protocol (Protocol 4) implemented on the ADuC7034 to enable users to develop their own LIN programming tools either for production programming or application update.
Blackfin
Processors' Powerful Pin Multiplexing Facilitates Flexible Use of Peripherals
EE-341: Expert Pin Multiplexing Plug-in for Blackfin Processors
This 10-page Engineer-to-Engineer Note explains how to use the Expert Pin Multiplexing plug-in for VisualDSP++® development tools (release 5.0 or higher) to configure the Port registers in ADSP-BF54x and ADSP-BF52x Blackfin® processors. The Expert Pin Multiplexing plug-in simplifies the task of generating the C and/or assembly code that is used to program the Port registers.
Control External
Switching Regulator With Blackfin Processor's Pulse-Width Modulator
EE-339: Using External Switching Regulators with Blackfin Processors
The Blackfin® family of embedded processors includes an optional internal programmable pulse-width modulation (PWM) voltage controller. Together with a set of external components, the PWM controller provides an adjustable internal voltage power supply that can be applied to the core and on-chip memory. This 10-page Engineer-to-Engineer Note describes how an external regulator can be used in conjunction with the internal voltage controller to: improve dynamic performance, efficiency, and stability, while reducing the requirements for PCB area and external component ratings. It also provides guidelines for designing such a regulator, gives test results from prototype circuitry designed using the recommendations herein, and describes a method for using the behavior of the on-chip regulator to control the external regulator when the Blackfin processor is transitioned into the ultra-low power hibernate state.
Blackfin
Processor and HomePlug Implement Networked Audio Application
EE-338: Interfacing Blackfin Processors to the Intellon INT5200 HomePlug PHY
This 9-page Engineer-to-Engineer Note describes how to interface the ADSP-BF537 Blackfin® processor to the Intellon INT5200 HomePlug PHY. It provides the details for building an interface from an ADSP-BF537 EZ-KIT Lite® board to an Intellon EDK5200 evaluation board, and also provides an example VisualDSP++® project that implements a networked audio server/client pair. This networked audio project may be used either with HomePlug or standard 10/100 Ethernet as the physical medium.
External Host
Masters Bidirectional DMA Transactions
EE-337: Host DMA Port on ADSP-BF52x and ADSP-BF54x Blackfin Processors
The Host DMA Port on ADSP-BF52x and ADSP-BF54x Blackfin® processors allows an external host device to master bidirectional DMA transactions. This 7-page Engineer-to-Engineer Note discusses details of using this port and provides example code for the different modes of operation.
Use Hibernate
State to Achieve High Operating Speeds and Low Standby Power
EE-334: Using Blackfin Processor Hibernate State for Low Standby Power
This 18-page Engineer-to-Engineer Note shows how both high speed and low standby power can be achieved by using a Blackfin processor's hibernate state. The hibernate state allows core power to be removed while keeping I/O power applied. When core power is removed, however, the processor’s internal SRAM context is lost. Most Blackfin processors have a real-time clock (RTC) that can be used to wake the core from the hibernate state on a periodic basis, and several Blackfin processors allow other sources to take the processor out of the hibernate state as well. This note describes a solution for maintaining the application’s context through a hibernate cycle utilizing the RTC wakeup event.
External Bus
Interface Unit Facilitates Connection Between SDRAM and Blackfin Processor
EE-326: Blackfin Processor and SDRAM Technology
Blackfin® processors provides an External Bus Interface Unit (EBIU) for connecting with SDRAM. This 53-page Engineer-to-Engineer Note covers: register settings and their meaning, SDRAM initialization, SDRAM hardware design, using less than 16 MB of SDRAM, performance optimization, and power optimization. It discusses SDR-SDRAM (not DDR-SDRAM), and applies only to ADSP-BF53x, ADSP-BF52x, and ADSP-BF561 processors.
...more Engineer-to Engineer and Application Notes
AD5726, Rev B; AD605, Rev F; AD660, Rev B; AD7942, Rev B; AD8250, Rev A; AD8603/07/09, Rev C; AD8610/20, Rev F; AD8615/16/18, Rev D; AD8628/29/30, Rev G; AD8638/39, Rev C; ADG1433/34, Rev A; ADG772, Rev A; ADG884, Rev C; ADM823/24/25, Rev B; ADR520/25/30/40/50, Rev E.
...more Recently Revised Data Sheets
Summaries and copies of patents may be obtained from the US Patent and Trademark office. Click here for a list of all patents issued to Analog Devices since 1976.
Alberto Mandler,
7,392,346, Memory updater using a control array to defer memory
operations
Rodney Miller,
Steven Backer, 7,391,836, System and method for synchronous
clock re-generation from a non-synchronous interface
Ralph Moore,
Michael Fernald, 7,391,474, Display interface systems and
methods
Wenshuai Liao,
Yiming Zhao, 7,382,567, Accelerometer-based differential free
fall detection system, apparatus, and method and disk drive protection mechanism
employing same
Frank Murden,
Bac Luu, 7,382,305, Reference generators for enhanced signal
converter accuracy
Willard Bucklen,
7,382,298, Code-correction structures and methods for digital
displays
Barrie Gilbert,
7,382,190, Variable attenuation system having continuous input
steering
...more Recently Issued Patents
Online Edition: Click here for the Analog Dialogue Web archives, going back to Volume 1 (1967). This archive also includes three collections of important articles going back to Volume 1, No. 1.
Print Edition: Click here to add your name to our mailing list to receive future print editions of Analog Dialogue.
A Reader Notes: HHigh-Frequency-Caused Errors in Millivolt-Measurement Systems, By Herman R. Gelbach, P.E. ret. (hrgelbach@juno.com) - from Analog Dialogue Volume 35-04, 2001
A Reader Notes: Reactant Flow Sensor by Jason Dugas (jason.a.dugas@nasa.gov) - from Analog Dialogue Volume 38, Number 3, 2004
A Reader Notes: FORTHstamp is a true single chip computer, based on the ADuC7020 precision analog microcontroller. The ADuC7020 includes a 32-bit ARM7 microprocessor and a host of peripherals, including a serial communication port (UART), general purpose digital inputs and outputs (GPIO), an analog-to-digital converter (ADC), four digital-to-analog converters (DAC), and 92 KB of programmable (flash) memory. It provides an excellent platform for using Forth to develop real-time applications. Submitted by Dr. Chen-Hanson Ting, Offete Enterprises.
A Reader Notes: I found your design using the AD71028 as a satellite set-top-box (STB) stereo synthesizer clever and interesting. However, I can suggest two corrections to the information in the article. One is the RF spectrum of a modulated NTSC video and audio signal... The second correction may be significant if a reader is trying to understand the design by performing calculations. When describing the precision N-divider, the value N is listed as 780.9838... The precise value is actually 780.9706666... Read the complete exchange between Matt Laun and Jeritt Kent.
A Reader Responds: In the Analog Dialogue Volume 41, Number 2 Editors' Notes, [Scott] wrote: “The second problem is that the GPS loses its signal when I travel through Boston's Big Dig tunnels, making it unable to maintain its bearings or to provide instructions for lane splits and exits. Too bad it doesn't include an ADI accelerometer, whose inertial navigation capabilities could provide positional information during these temporary signal losses.” Bob Paddock responded, “Now, extend that problem to coal mines, where GPS is useless *ALL* of the time.” Read the complete letter and Dan's comments.
Rarely
Asked Questions... Strange but true stories from the
call logs of Analog Devices. James Bryant offers intrigue, interest, and
technological troubleshooting ideas... Engineer, applications manager,
philosopher, humorist, columnist, and radio ham (G4CLF) -- only a man with such
an eclectic dossier could make the often drab world of semiconductors come to
life with such color and imagination.
NI Multisim Analog Devices Edition - Free SPICE Simulation Software for Linear Circuits
Solutions/Applications - Start with your application. Quickly find the best components for your design.
Virtual Design Center - Our analog and DSP experts share their experience with these design tools and wizards.
Online Technical Seminars - the latest in depth technical knowledge on our products, technologies, and applications.
Technical Support for Data Converters, Amplifiers and Linear, Digital Signal Processing, Power, Supervisory and Interface, RF and Communications, and MEMS Technology. Includes application notes, code examples, cross-references, evaluation boards/tools, selection guides, seminar materials, technical articles, tutorials, and much more.
Technical Support for DSP
Technical Support for IOS Subsystems
Quality and Reliability, links to ADI Pb (Lead) Free, Material Declaration Search, Packages Index, Quality Certificates, Quality Systems FAQs, Reliability Data, Reliability Handbook, Total Quality Management (TQM), Technical Quality Papers, Automotive Commitment
iSensor™ Family of Motion Sensors - 32-page, 20-minute training module
Resistors in Analog Circuitry - December 2007
2007 Designers' Reference Manual - This DVD contains product category tree drill-down, full-length data sheets, application notes, SPICE models, interactive selection tables, solution and applications signal chains, cross-reference selections, sales office directory, full parametric search, evaluation board listings by product, and tiny part number listing.
Blackfin Online Learning and Development (BOLD) Video Tutorials - Shorten your development cycle.
An Introduction to Digital Signal Processors
Embedded Processing and DSP Knowledge Base
ICs
for Wireless Infrastructure
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Tuned - Industrial/Medical/Instrumentation
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