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Content tagged with Analog ICs
posted in May 2005
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Class-D digital amplifier made for flat-panel TVs
Product News  
5/31/2005   Post a comment
Review: This digital-input Class-D audio power amplifier from Texas Instruments Inc. is said to enable the development of flat-panel displays (FPDs) with sound quality that matches the display's high-quality image, while minimizing cost and component count.
JDS Uniphase sells CATV business to Emcore
News & Analysis  
5/31/2005   Post a comment
JDS Uniphase Corp. has sold the assets of its CATV business to communications semiconductor and subsystems supplier Emcore Corp. for $1.5 million.
Shift Happens
Power DesignLine Blog  
5/31/2005   Post a comment
The combination of advanced control methods and novel power stage designs will spawn an entire new breed of power supplies that redefine state-of-the-art performance benchmarks.
ICs charge lithium-ions from AC or USB
Product News  
5/31/2005   Post a comment
Linear Technology's LTC4075 and LTC4075X are stand alone dual-input linear battery charger ICs that automically select the charging source (either a wall adapter or a USB port) for single-cell lithium-ion batteries. Using a constant-current/constant-voltage algorithm, the chargers, for application in PDAs, MP3 players, portable test equipment, and cell phones, can deliver up to 950 mA from a wall adapter or 500 mA from a USB supply.
EM Microelectronic's smart card IC offers flexible memory positioning
Product News  
5/31/2005   Post a comment
EM Microelectronic announces the EMTCG176-3G, a flash memory-based smart card IC designed for use in SIM and Java cards for GSM mobile phones, as well as for healthcare and loyalty card applications. The EMTCG176-3G is compatible with the ISO7816-3 Integrated Circuit Card (smart card) specification, and operates with high speed communication baud rates, making it compatible with the 3rd generation of cellular telephones.
DC/DC-Stepdown-Wandler für knifflige Fälle
News & Analysis  
5/30/2005   Post a comment
Für Anwendungen, in denen es auf eine präzise sequentielle Einstellung mehrerer Spannungspegel ankommt, hat Linear Technology den synchronen Dual-Step-Down-Schaltcontroller LTC3828 entwickelt.
Simultaneously set independent audio sample rates on stereo codec
Product News  
5/28/2005   Post a comment
Wolfson Microelectronics plc has launched a stereo audio codec that can operate the A/D converter and D/A converter at different sample rates simultaneously.
Gas Gauging: Art or Science?
Design How-To  
5/27/2005   Post a comment
Battery ICs are very sophisticated and must keep up with the demand for accurately calculating battery performance for the wide variety of battery types. Each calculation method has differing elements and resolutions and introduces possible errors into the equation, which affects the battery's potential long-term maximum performance. Here's what you need to know to get the most out of your battery.
Half-price instrumentation amplifiers deliver precision
Product News  
5/27/2005   Post a comment
Analog Devices Inc.'s instrumentation amplifier is said to combine accuracy, low noise and low price for portable medical devices and low-voltage industrial and communications applications.
Flat panels capitalize on cool, clear Class-D audio technology
Design How-To  
5/27/2005   Post a comment
Opinion: Class-D technology provides several benefits as an audio power amplifier solution. The amplifier's efficient operation minimizes heat, thereby eliminating the need for heat sinks, and also reduces overall power consumption, which helps reduce the transformer and regulator size and cost.
Low-voltage analog switch family targets portable systems
Product News  
5/27/2005   Post a comment
Vishay Intertechnology, Inc. today released a family of low on-resistance and low-level logic control analog switches designed for direct battery operation in portable applications.
Dual controller daisy-chains for multitracking
Product News  
5/26/2005   Post a comment
Linear Technology's LTC3828 is a dual step-down switching controller with integrated tracking for sequencing multiple voltage rails, a phase-locked loop (PLL) for precision synchronization, and PolyPhase operation for reducing input capacitance and noise. The chip, which enables the design of compact multiple output power supplies in applications such as single-board computers, industrial equipment, automotive electronics and FPGA-based systems, can daisy chain to multiple LTC3828s or other DC/D
Skyworks tabs ex-Amkor chief to head operations
News & Analysis  
5/26/2005   Post a comment
Semiconductor supplier Skyworks Solutions Inc. has named Bruce Freyman, former president and chief operating officer of Amkor Technology Inc., as its vice president of worldwide operations.
AKM low power stereo DAC has built-in 3D enhancement
Product News  
5/26/2005   Post a comment
Asahi Kasei Microsystems (AKM) has introduced the AK4368, a low power stereo DAC with built-in 3D enhancement, high output headphone amplifier and PLL - all features that make it ideal for ultra-compact mobile phones, smart phones and PMPs.
How to drive switching devices without losing speed
Design How-To  
5/26/2005   Post a comment
The monolithic high-side drive poses a fascinating challenge for system designers. Simply put, designers need to find a way to drive the switching devices as easily as possible - without suffering from lack of speed. Enter a high-voltage process for the high-side gate driver IC and the conventional high-side driver topology.
Digital potentiometers are simple to operate
Product News  
5/25/2005   Post a comment
Maxim Integrated Products Inc. introduced low-cost 64-tap, one-time-programmable digital potentiometers.
Dual-output regulator simplifies notebook designs
Product News  
5/25/2005   Post a comment
Maxim Integrated Products' MAX8737 is a dual, high-power, linear-regulator controller that (with external n-channel MOSFETs) provides two independent low-voltage supplies for notebook computers, point-of-load regulators, and low-voltage bias supplies. The chip, working from a nominal 5 volts, delivers a highly regulated 0.5 to 2.5 volts at each output (no-load accuracy is ±5 mV), with the external MOSFETs faciliating a scaleable current design that provides good load regulation (±1 p
Clock extraction circuitry times high-speed communications test
News & Analysis  
5/24/2005   Post a comment
A critical aspect of the receiver circuit decision process is ensuring that the "0-or-1" decision process occurs at an optimal time. Some form of clock signal must be provided to the decision circuit to time the decision process, writes Agilent's Greg Le Cheminant. But this signal must be highly synchronous with the incoming data stream. Just a small offset in frequency between the data rate and the receiver clock, he says, will degrade the BER. Greg's tutorial on clock-data recovery (CDR) in th
Wide-input voltage SEPIC drives high-power white LEDs
Design How-To  
5/24/2005   Post a comment
One challenge in using white LEDs in many applications is powering them with the wide input voltage range that batteries present. A battery-to-LED DC/DC converter must both step up and step down the source voltage to a typical 6.8V LED forward voltage required for a camera flash - and keep the LED current constant (for constant luminosity). From the May issue of Planet Analog magazine, a Linear Technology Corp. engineer offers a SEPIC circuit that does the job.
The organizational side of power management: One engineers perspective
Blog  
5/24/2005   Post a comment
Even with jobs going overseas, the age-old conflict between engineering and marketing has not diminished. In this departure from diodes, MOSFETs and loop currents, Sanjaya looks at the organizational side of power management projects. The vocal, technology-grounded engineer may too often be the unwanted child in a "King's Court," he worries.
Video converter renders dual images
Product News  
5/24/2005   Post a comment
National Semiconductor Corp. today introduced what it claims is the first dual-channel video format converter for high-definition television that features two video conversion channels and a dual 3-D architecture.
DC/DC converter optimized for RF load requirements
Product News  
5/24/2005   Post a comment
Ericsson introduces a highly efficient DC/DC converter optimized for RF power. It uses a technology that significantly improves thermal management and performance over other designs.
Tiny log amp spans 1 MHz to 10 GHz
Product News  
5/24/2005   Post a comment
Designed to measure and control RF signals, Analog Devices' new log amp is optimized for accuracy, power, and size in order to target wireless infrastructure, broadband wireless and radar applications.
Quad wideband noise canceller accelerates interconnect speeds by up to 400%
Product News  
5/24/2005   Post a comment
The Nx2000 is a VLSI analog device that integrates eight of the company's channel emulator cores, each with fully adaptive phase, amplitude and frequency control. It can cancel eight network aggressors from four victim channels dynamically in under a square inch of board area. As a result, channel throughput is improved by up to 400%, according to the company.
2.4-GHz radio-on-chip integrates programmable mixed-signal array
Product News  
5/24/2005   Post a comment
Cypress Semiconductor Corp. is sampling a low-cost flash programmable microcontroller with an integrated 2.4-GHz radio transceiver that contains a fully integrated direct sequence spread spectrum (DSSS) baseband.
POLA-compatible, non-isolated modules offer innovative multi-phase switching
Product News  
5/23/2005   Post a comment
TI offers a POLA-compatible, non-isolated, plug-in power modules with an innovative multi-phase switching topology. The modules are capable of powering today's most densely populated power systems found in advanced computing platforms and servers.
Sensor signal conditioning device offers speed and easy PC-controlled configuration
Product News  
5/23/2005   Post a comment
The ZMD 31010 sensor signal conditioner can be configured and calibrated using a Windows based computer via a one-wire interface.
Three-channel charge pump optimized for LED backlighting
Product News  
5/23/2005   Post a comment
AnalogicTech debuts new three-channel charge pump for white led applications. The tri-Mode device optimized for smaller displays used in high-volume cell phones.
LED controller puts on a light show
Product News  
5/23/2005   Post a comment
Dialog Semiconductor's new DA9026 controller is designed to program up to 18 light-emitting diodes (LEDs) for running the "fun lights," light shows, and backlighting in cellular handsets, handheld games, and other portable devices. It incorporates on-chip memory to store up to 15 light-pattern sequences and can drive separate red, green and blue LEDs (i.e., six RGB LEDs) using precision current d/a converters (DACs). Programmable variables include pattern, repetition rate, intensity of each LED,
Power reduction software works with existing design flows
Product News  
5/23/2005   Post a comment
Golden Gate Technology offers power reduction software that works with existing design flows at the architectural and physical levels. The company says it can reduce total power consumption by up to 25%.
Encoder IC senses motion without contact
Product News  
5/23/2005   Post a comment
Austriamicrosystems' analog magnetic rotary encoder IC for motion sensing applications promises reliability and longevity.
Camera-flash driver is one of the brightest
Product News  
5/21/2005   Post a comment
Sipex Corporation says its SP6686 current-regulated buck/boost charge pump offers one of the smallest solutions in the industry for white-LED camera flash applications in cell phones. The chip's low equivalent output resistance facilitates the highest flash brightness of any comparable IC device, according to the company.
Current-sense amplifier boasts six-gain settings
Product News  
5/20/2005   Post a comment
Linear Technology Corp.'s current sense amplifier is said to provide a complete precision part with a lot of flexibility.
Motor driver IC touts extra protection
Product News  
5/20/2005   Post a comment
Zetex Semiconductors' ZXBM1015 is a motor pre-driver IC for variable or fixed speed control of single-phase brushless DC fans, blowers and pumps. The chip, which delivers a PWM output suited to an (external) H-bridge that drives the motor windings, includes a current monitor that keeps the motor's start-up and stall current within OEM specifications. The ZXBM1015 will also put the motor drive outputs into a safe operating mode during a locked rotor condition to protect the H-bridge and motor win
Broadcom, Qualcomm head back to court as they engage in legal tussle
News & Analysis  
5/19/2005   Post a comment
Broadcom's announcement Thursday that it would file multiple lawsuits against Qualcomm Corp. for alleged patent infringement have brought both companies back into the familiar arena of court patent battles.
DC-DC Conversion for Power over Ethernet
Design How-To  
5/19/2005   Post a comment
In the next few years power-over-Ethernet is expected to become a standard feature on all high-end switches and routers for voice over Internet protocol (VoIP) and LAN wireless. Here's some in-depth help designing an isolated dc-dc converter that can be used in Powered Devices for Power over Ethernet applications.
Cree licenses white LED patent
News & Analysis  
5/19/2005   Post a comment
Cree Inc. announced Thursday it has licensed its white LED patent to several strategic chip customers, including Stanley Electric Co. Ltd., and Rohm Co. Ltd., both of Japan, and Cotco Holdings Ltd. (Hong Kong).
Reining in Position-Sensing Costs
Design How-To  
5/19/2005   Post a comment
Just one Hall sensor and magnet per axis determines car seat position.
Voltage monitor expands JTAG capability into analog realm
Product News  
5/19/2005   Post a comment
National Semiconductor Corp.'s analog voltage monitor is a low-power device that enables embedded voltage monitoring in servers and computing, telecommunications and industrial applications.
California Micro Device CEO joins Transmeta's board
News & Analysis  
5/19/2005   Post a comment
Troubled processor company Transmeta Corp. appointed Robert Dickinson, president and chief executive of California Micro Devices, to its Board of Directors Thursday.
Controllers power their way into the digital loop
Product News  
5/18/2005   Post a comment
Controller chip recap - Power management ICs are progressing quickly towards more digital control and the so-called digital power supply in all its various forms. The pros and cons of digital versus traditional analog designs, set against economic feasibility issues, still have strong supporters on both sides. Few designers, however, dispute the benefits of an ideal "digital" system: High integration, fewer analog parts, faster control response, higher accuracy, tighter regulation, and easy cust
Stand-alone fuel gauge calculates remaining battery capacity
Product News  
5/18/2005   Post a comment
A 2-wire, stand-alone fuel gauge from Dallas Semiconductor calculates remaining battery capacity and simplifies software development. It's just right for digital cameras, 3G multimedia wireless handsets and more.
Taming Power Inductors for System-on-Chip (SoC) Integration
Design How-To  
5/18/2005   Post a comment
Continuing to integrate more devices and functions into ever shrinking waistlines is a design challenge for circuit designers everywhere. What can you do? You can get rid of the bulky components but be careful which ones you eliminate.
Married to bipolar: the op amp technology of last resort
Design How-To  
5/17/2005   Post a comment
"What is it that keeps 21st century op amp designers living in the 60s?" asks consultant designer Scott Elder. "The answer," he says, "lies deep inside the thousands of manufacturer datasheets: The Specifications." Read why he feels that op amp design, in CMOS, is something of a compromise, and why bipolar remains the mournful favorite among those who know.
PCIe-to-PCI-X bridge offers low power in small package
Product News  
5/17/2005   Post a comment
Designers eager to upgrade their PCI designs to the rapidly growing PCI-Express (PCIe) interconnect standard should take a good look at this bridging chip that is said to offer the smallest package and lowest power consumption of any PCIe device on the market. The PLX ExpressLane PEX 8114 PCIe-to-PCI-X bridge is packaged in a 17-mm X 17-mm standard plastic BGA, and burns a maximum of 2-Watts of power. It consumes about 25% of the board space and offers power dissipation at about a quarter of com
Ultrasound drivers deliver deeper body tissue imaging capability
Product News  
5/17/2005   Post a comment
These medical ultrasound drivers from Supertex, Inc. are said to enable efficient switching, clearer images and faster frame rates.
Energy Star adds to charter partners for external power supplies
News & Analysis  
5/17/2005   Post a comment
Need information about the ENERGY STAR External Power Supplies program? Find all the contact information here.
Current sense resistors meet needs for high-power dissipation, low resistance
Product News  
5/17/2005   Post a comment
Stackpole Electronics introduces a 100 amp current sense resistor that is used for applications that need high-power dissipation with low resistance.
Chip-Prozess verbessert Sensor-Auswertschaltungen
News & Analysis  
5/17/2005   Post a comment
Analog Devices (ADI) will diese Woche einen bipolaren Fertigungsprozess vorstellen, der gleich drei Fliegen mit einer Klappe schlägt: Das Verfahren der Verarbeitung von Sensoren mit schwachen Signale nicht nur geringes Rauschen und hohe Empfindlichkeit bescheren, sondern auch einen hohen Spannungsschutz für industrielle Umgebungen bieten.
TI data converter strategy hinges on new product ramp
Product News  
5/17/2005   Post a comment
In the aftermath of its annual financial analysts' meeting (May 11th), Texas Instruments Inc. elaborated on its strategy in data converters ICs. The company's market positioning relies heavily on multi-market building blocks with attention-getting specs. Steve Ohr reports.
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Rishabh N. Mahajani, High School Senior and Future Engineer
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A future engineer shares his impressions of a recent tour of top schools and offers advice on making the most of the time-honored tradition of the college road trip.

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Juggling a Cornucopia of Projects
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