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Content tagged with Analog ICs
posted in August 2005
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Newcomer develops high-speed op amps
Product News  
8/17/2005   Post a comment
ON Semiconductor threw its hat in the high-speed operational amplifier ring today with four high-speed devices aimed at low power video applications like set-top boxes and security video.
Streamlining power delivery systems for servers
Design How-To  
8/17/2005   Post a comment
With the electronic loads totaling 280 watts typical — not worst case — the fan losses are still among the largest. As part of our "power is where you find it" August issue theme, an International Rectifier engineer catalogs the places were compute server card cages and telecomm switching stations burn serious energy.
When your company is for sale...
Blog  
8/17/2005   Post a comment
Agilent's sale of its semiconductor products group (SPG), and the subterfuge that surrounded it, reminded Steve Ohr of the times he spent reassuring a panicky staff what it meant to wear a "for sale" sign. Let's hope the new management will allow SPG employees breath a little easier, he says.
Mixer targets 2.5 and 3G applications
Product News  
8/17/2005   Post a comment
WJ Communications' new mixer offers solid performance for CDMA2000/WCDMA and cellular infrastructure applications at a good price.
Multiphase PWMs tout high accuracy for non-core apps
Product News  
8/16/2005   Post a comment
Intersil Corporation's two-phase ISL6310 and three-phase ISL6308 pulse width modulation (PWM) controllers with high-current, integrated MOSFET drivers for server and embedded system peripherals tout high-accuracy voltage regulation of the kind typically reserved for processor core applications.
RAD-hard MOSFETs deliver 40% better device on-resistance
Product News  
8/16/2005   Post a comment
International Rectifier says its new line of mid-voltage RAD-hard MOSFETs can help make converters more compact and reliable than available designs.
Clock chips synchronize slewing simultaneously
Product News  
8/16/2005   Post a comment
TimeLab Corp. unveiled the flagship digital timing devices in its TotalClock family of timing processor units (TPUs), which places multiple synthesizers on a single chip.
Prema serial 12V-LED driver handles up to three LEDs
Product News  
8/16/2005   Post a comment
Standard light sources such as bulbs are increasingly replaced by LEDs or LED strings. PREMA Semiconductor offers the new constant current driver PR4130 controlling up to three LEDs in series. Even if one or two LEDs are disconnected or short circuited, the current and the brightness remain constant, thus providing a high reliability.
Down converters combines switching converter and two independent series regulators
Product News  
8/16/2005   Post a comment
A DC/DC converter down converts from 24V to 5V and now 3.3V. The chip, used in series is aimed at sensor applications.
Cypress tabs former Altera exec new CFO
News & Analysis  
8/15/2005   Post a comment
Cypress Semiconductor Corp. has appointed semiconductor industry veteran Brad Buss executive vice president of finance and administration and chief financial officer.
Under the Hood of Sharp's V402SH: TV (ana)logs-in to your phone
Teardown  
8/15/2005   Post a comment
Portelligent’s David Carey lifts the lid on the Sharp V402SH, which has a built-in analog TV for the Japanese PDC cellular network. Some countries get to have all the fun, he says.
Power IC combines and simplifies design of Ethernet-powered apps
Product News  
8/15/2005   Post a comment
TI Introduces 100-V Power-over-Ethernet Single-Chip Controller for IP Phones and WLAN Systems that combines power device control with a DC/DC controller.
Combo PFC/PWM controller simplifies off-line supplies
Product News  
8/15/2005   Post a comment
ON Semiconductor's NCP1603, a combination power factor correction and pulse width modulation (PFC/PWM) controller with integrated standby and high-voltage startup circuitry, simplifies the design of off-line, AC/DC power supplies. The integrated solution, versus separate PFC and PWM controllers, saves up to 10 additional (external) components. Target applications for this device include notebook and LCD adapters.
Op amps benefit power-constrained portable apps
Product News  
8/15/2005   Post a comment
Offering low noise and distortion and drawing just 1.1 mA of supply current, Analog Devices Inc.’s op amps are intended for portable instrumentation, high-channel-count measurement and medical applications.
How power modules address unique appliance requirements
Design How-To  
8/15/2005   Post a comment
The demand for inverterized drives and brushless DC (BLDC) motors continues to grow in consumer applications. The key to enabling this progress is inverter technology, especially the integrated power module. But what are these techniques and what should you know before applying these smart power designs? Read on.
Combo-controller holds down standby power consumption in notebooks
Product News  
8/12/2005   Post a comment
Power efficient PFC-PWM controller simplifies design of offline, AC-DC power supplies and enables extremely low no-load standby power consumption.
Analyst says ADI is refocusing DSP business units toward less competitive markets
News & Analysis  
8/12/2005   Post a comment
Though he's decreasing his earnings-per-share estimates on Analog Devices Inc. for its fiscal fourth quarter (and the first quarter of fiscal 2006), Doug Freedman of American Technology Research maintains a "buy" rating on ADI's shares. He's worried about ADI's competition in data converter and DSP markets, but likes the way this company is managing its expenses. If the revenue tide is indeed coming in for analog suppliers, expect this boat to be lifted high. Let's hope the inventory correction
Microchip's Power Management ICs combine several discrete functions
Product News  
8/12/2005   Post a comment
Microchip introduces the TC1303/TC1304 and TC1313 series of power management ICs that combine a synchronous buck switching regulator, low dropout (LDO) regulator and power-good function into single-chip solutions. All five device options include the 500 mA Buck Regulator, and the 300mA LDO.
Monolithic 16-/14-bit DACs offer gain, offset correction in compact package
Product News  
8/12/2005   Post a comment
Maxim Integrated Products has released the MAX5762 (16-bit) and MAX5774 (14-bit), 32-channel, digital-to-analog converters (DACs) with integrated programmable offset and gain calibration functionality for automated test equipment, fiber optics and data acquisition.
Continuing opportunities benefits analog power management
Special Report  
8/12/2005   Post a comment
The power management market is booming due to the high growth seen in portables. Semiconductor manufacturers have recognized this and seized the opportunities. Databeans says the most successful companies have been able to focus on particular markets. Here's how it all shakes out.
High-voltage EL drivers brighten LCD picture
Product News  
8/11/2005   Post a comment
Supertex's HV841 and the new version of its HV839, for higher brightness, are designed to drive two electroluminescent (EL) lamps with a combined area of 3.5 in2 for backlighting liquid crystal displays (LCDs) and keypads in mobile phones and other portable devices.
Cree reports sales gains for quarter and year
News & Analysis  
8/11/2005   Post a comment
Semiconductor supplier Cree Inc. posted net earnings of $21 million, or 27 cents per share on sales of $98.8 million in its fourth fiscal 2005 quarter ended June 26, compared to $20.9 million, or 28 cents per share on sales of $90.8 million in the year-ago fourth quarter.
Analog Devices earnings up, sales down
News & Analysis  
8/11/2005   Post a comment
Analog Devices posted net earnings of $121.4 million, or 32 cents per share on sales of $582.4 million for the third fiscal quarter ended July 30.
LED driver lights five displays
Product News  
8/11/2005   Post a comment
Linear Technology's LTC3208 charge pump-based controller, optimized for single cell lithium-ion cellular applications, can deliver up to 1 amp for driving up to 17 LED elements in five displays. These include the main display (1-4 LEDs); a sub display (1-2 LEDs), RGB (1-3 LEDs), camera (1-4 LEDs), and an auxiliary display (1-4 LEDs).
Silvaco teams with custom IC provider on process design kit
News & Analysis  
8/11/2005   Post a comment
Silvaco is offering a process design kit supporting scalable CMOS design rules from custom IC provider Mosis.
Linear 16-bit SAR ADC targets high-performance data systems
Product News  
8/11/2005   Post a comment
Designed for advanced, real-time applications in automated test equipment, medical imaging, optical networking, high-speed control loops and high-resolution data acquisition systems, Texas Instruments Incorporated's 16-bit, successive-approximation (SAR) analog-to-digital converter (ADC) offers impressive stability in challenging environments.
Programmable LED driver supports up to 17 LED sources
Product News  
8/11/2005   Post a comment
Linear Technology Corporation's LTC3208 is an 850kHz, low-noise, high-efficiency 1x/1.5x/2x charge pump LED driver that can drive up to 17 LED current sources in a single portable device.
Controller expands digital power management
Product News  
8/11/2005   Post a comment
The PS-2606 power system controller from Potentia Semiconductor provides a complete power management solution for up to six non-isolated DC/DC converters and one intermediate bus in telecom, networking, and data storage applications. This highly integrated chip enables users to digitally program output voltages, sequencing for startup and shutdown, and over-voltage and under-voltage warning and fault thresholds on each power rail.
Solution to energy crisis to be found in space?
News & Analysis  
8/11/2005   Post a comment
A study reveals that by the year 2050, there will be need a for three times as much primary power and it will have to be three times as clean. Where will we get it?
Former Motorola exec Krueger appointed to Marvell's board
News & Analysis  
8/10/2005   Post a comment
Marvell announced that Arturo Krueger has joined the company's board of directors, effective immediately.
Predicting runtime for battery fuel gauges
Design How-To  
8/10/2005   Post a comment
Batteries are one of the most misunderstood power sources when it comes to the prediction of remaining system runtime. Find out how to calculate the most accurate information possible for the remaining capacity of a battery.
Regulators offer high current, low drop out in small package
Product News  
8/10/2005   Post a comment
Vishay Intertechnology Incorporated has introduced two small form (SC-70) 150-mA, low-noise, low-dropout (LDO) regulators for portable devices, including cell phones, PDAs, pagers, digital cameras, MP3 players and modems.
Latched sink drivers deliver flexibility through MOS, bipolar mix
Product News  
8/10/2005   Post a comment
Allegro Microsystems Incorporated offers the A6800/01, A6821/41, and A6832/33 latched sink drivers for LED displays, gaming and medical systems. Each component in the series offers 3.3 V logic supply capability, data input rates up to 10 MHz, and is RoHS compliant.
Triple-output pump powers TFT-LCDs
Product News  
8/10/2005   Post a comment
Advanced Analogic Technologies' AAT2820 is a triple-output charge pump regulator specifically suited to powering TFT LCDs and CCD image sensors in handheld products with lithium-ion/polymer batteries. The chip generates three regulated output voltages from two charge pumps for turn-on gate drive bias (Vpos), turn-off gate voltage bias (Vneg), and logic.
LVDS buffer/repeaters extend signal integrity of FPGAs, ASICs
Product News  
8/9/2005   Post a comment
National Semiconductor Corporation's two new low-power, high-performance buffer/repeaters for low-voltage differential signaling (LVDS) systems extend the signal reach of field-programmable gate arrays (FPGAs) and application specific integrated circuits (ASIC) across backplanes and cables in telecom, datacom, industrial, medical, automotive and office imaging applications.
Automotive vision looks to put technology in the driver’s seat
Design How-To  
8/8/2005   Post a comment
More autonomous vehicles means less autonomous drivers. This raises many questions about safety, convenience, and even the role cars play in our daily lives.
Low-noise linear regulator powers analog, RF ICs
Product News  
8/8/2005   Post a comment
Designed as a low drop-out linear regulator optimized for powering 100-mA analog and RF signal-path ICs, including low-noise amplifiers, voltage-controlled oscillators and RF receivers in cell phones and similar portable devices, the LP5900 CMOS linear regulator from National Semiconductor Corporation offers ultra-low noise, and high power supply ripple rejection, while consuming a mere 25 microamps.
Digital potentiometers save on space, power
Product News  
8/8/2005   Post a comment
The MAX5481-MAX5484 line of programmable digital potentiometers from Maxim Integrated Products come in two wiper configurations — voltage-dividers and variable resisters — to replace mechanical potentiometers in a fraction of the required space.
Altera, TI to partner on PCI Express solution
News & Analysis  
8/8/2005   Post a comment
Altera Corp. and Texas Instruments Inc. have announced a partnership to develop a PCI-SIG compliant, low-cost PCI Express solution using Altera's Cyclone II FPGAs and the latest generation TI x1 physical layer (PHY) chip.
An efficient approach for modeling feedback systems
Design How-To  
8/8/2005   Post a comment
Cal Tech professor David Middlebrook and Intusoft's Tim Ghazaleh show how analog and mixed-signal designers can use the General Feedback Theorem (GFT) to model systems involving feedback.
World's smallest advanced lighting management unit targets handheld devices
Product News  
8/5/2005   Post a comment
National Semiconductor introduces a backlight LED driver that integrates Flash LED and backlight drivers, RGB controller and A/D converter on a single chip.
How to Charge Li-Ion Batteries for Portable Devices More Efficiently
Design How-To  
8/4/2005   2 comments
Continuing power demand increases from portable devices making the linear battery charger no longer efficiently adequate to charge the Li-Ion battery. Here's what you can do.
Power op-amp IC delivers hybrid performance
Product News  
8/4/2005   Post a comment
Product Review - The PA78 is Apex Microtechnology's first high-voltage, high-speed integrated circuit and marks a turning point of sorts away from hybrid devices for which the company has become well known.
PLL clock generation IC aims to replace crystal oscillators
Product News  
8/4/2005   Post a comment
Designed to replace expensive crystal oscillators for clock generation in a wide variety of consumer and networking applications, ON Semiconductor's new PLL clock generation IC delivers comparable performance, greater design flexibility, and lower cost than crystal oscillators.
New D/A converter aims for cleaner signals
Product News  
8/4/2005   Post a comment
Maxim reports that its new 16-Bit, 600Msamples/s digital/analog converter delivers industry-leading spurious-free dynamic range and intermodulation distortion performance.
Buck regulator-with-LDO boosts portable power
Product News  
8/4/2005   Post a comment
Linear Technology's LTC3448 low-noise, synchronous buck regulator can deliver up to 600 mA at very high efficiency over a wide load for handheld wireless applications using single cell lithium-ion, multi-cell alkaline, and NiMH sources. When output current is greater than 3 mA, the regulator switches at a user-selectable frequency of 1.5 or 2.25 MHz. If output current drops to 3 mA or below, the chip automatically shifts to its low-dropout (linear) regulator.
World’s fastest analog-to-digital converter integrates 1:4 demultiplexed outputs
Product News  
8/3/2005   Post a comment
Targeting high-speed data acquisition and test equipment, Atmel Corp.'s new 10-bit 2 GSamples/s A/D converter offers 33% sampling speed improvement over other A/D converter and DMUX combinations.
ADI's Stata: Microphotonics could be ready within 5 years
News & Analysis  
8/3/2005   Post a comment
Microphotonics could begin to replace some system electrical components in as few as five years, if not sooner, according to Analog Devices Inc. Chairman Ray Stata.
MAXQ microcontroller drives smart 4-20ma transmitter
Design How-To  
8/3/2005   Post a comment
The 4-20mA current loop offers a common technique for transmitting sensor information in industrial process-monitoring applications. Current loops are particularly useful when the information must travel a long distance to a remote location, since they are relatively insensitive to noise, and their power can be derived from a remotely supplied voltage. A Maxim FAE offers a means of implemented the current loop using a small controller.
How dare you call my girlfriend ugly?
Blog  
8/2/2005   Post a comment
Steve Ohr is continually amazed by the diversity of the feedback he gets from his personal blogs and columns — as well as those of other Planet Analog contributors. In one case, Ohr angered audio component vendors who felt he was being unfairly negative toward Class D amplifiers. In another editorial, this one about the acceptable responses to terrorism, Ohr triggered a lengthy "means-vs.-ends" discussion — as well as number of personal recollections from readers. Here is a little sa
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