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Content tagged with Analog ICs
posted in October 2005
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Noise effects on temperature measurement accuracy in 'thermal diode' systems
Design How-To  
10/31/2005   Post a comment
This is the last in a series of three articles on thermal diodes. The previous two articles of the series demonstrated how 'thermal diodes' are used to measure temperature and developed an understanding of the internal variables of 'thermal diodes' used in temperature measurement systems. This article addresses an external variable -- noise coupling. It discusses the effects of noise coupling on 'thermal diode' systems and methods to prevent it.
5-supply PMIC boosts portable audio, video apps
Product News  
10/28/2005   Post a comment
Freescale Semiconductor's MPC18730 five-supply power management IC (PMIC) for portable audio and video applications works off as little as 0.9 volt, thus greatly extending battery life.
Regulator meets industrial needs
Product News  
10/28/2005   Post a comment
Linear Technology Corp. unveiled a 100-mA industrial grade version of its LT3020 low dropout voltage regulator with guaranteed performance from -40°C to +125°C.
Sales, earnings slide at AMIS, Vitesse
News & Analysis  
10/27/2005   Post a comment
AMIS Holdings Inc. and Vitesse Semiconductor Corp. saw earnings and sales decline in their September fiscal quarters.
Temp sensor measures five locations
Product News  
10/27/2005   Post a comment
Maxim Integrated Products Inc.'s precision five-channel temperature sensor is said to accurately measure its own temperature — and the temperature of up to four external locations with 1°C temperature accuracy.
MagnaChip Semiconductor narrows loss
News & Analysis  
10/27/2005   Post a comment
Korean semiconductor supplier MagnaChip Semiconductor posted a net loss of $13.2 million on sales of $243.1 million in the third quarter, compared to a loss of $33.5 million on sales of $236.0 million the previous quarter.
Display drivers light up the marquee
Product News  
10/27/2005   Post a comment
Maxim Integrated Products' MAX6971/MAX6983 16-port, and 8-port MAX6970/MAX6980/MAX6981 constant-current LED drivers are rated at 36 volts for commercial lighting applications, including traffic signs, point-of-order and variable message signs, and marquee displays. Extra protection features support fail-safe application requirements.
Dual-output LDO powers peripheral circuits
Product News  
10/26/2005   Post a comment
Microsemi Corporation's LX8821 ultra-low dropout regulator (ULDO), which has two independently regulated outputs, can deliver 2.5 amps (ULDO) per channel for applications ranging from PC peripherals and instrumentation to battery charging circuits and power to ASIC, memory and input/output circuits.
Current-sense amps draw less power
Product News  
10/26/2005   Post a comment
Semtech Corp. said this family of high-side current sense amplifiers with voltage flexibility and power saving features will allow mobile device designers to lower the system cost and power draw needed for battery sensing or data acquisition applications.
STMicroelectronics offers 2-axis accelerometers in a tiny, lead-free LGA package
Product News  
10/26/2005   Post a comment
STMicroelectronics has extended its range of dual-axis acceleration sensors with the introduction of two new devices housed in the tiny, lead-free LGA (Land Grid Array) package measuring just 5 x 5 x 1.5mm.
Agere appoints Clemmer CEO, posts fiscal year loss
News & Analysis  
10/26/2005   Post a comment
Semiconductor supplier Agere Systems Inc. has appointed Richard Clemmer president and chief executive of semiconductor supplier Agere Systems, replacing John Dickson who has decided to retire.
Energy metering ICs with web tools ease designs
Product News  
10/26/2005   Post a comment
In a dual announcement, Microchip Technology has released its MCP3905 and MCP3906 stand-alone energy-measurement integrated circuit (ICs), and also launched its on-line Utility Meter Design Center to provide designers with the tools and resources they need to create accurate and low-cost utility meter solutions for a wide range of applications.
Analog switches crank out bandwidth
Product News  
10/25/2005   Post a comment
Vishay Intertechnology, Inc.'s dual, single-pole, double throw and dual, single-pole, single throw analog switches are said to offer low on-resistance (2.5 Ohms) and high 3-dB bandwidth (up to 360 MHz) in a tiny package.
Melexis rotary position sensor provides non-contacting 360 degree detection
Product News  
10/25/2005   Post a comment
The Melexis MLX90316 is a monolithic, programmable Triaxis™ Hall IC designed for absolute non-contacting 360 degree rotary position sensors. In combination with an inexpensive, ordinary magnet, the MLX90316 simplifies the angular position sensing challenges found in many automotive and industrial applications.
Tiger Gizmondo: Gaming upstart leans on analog
Teardown  
10/25/2005   Post a comment
How do you compete against the big boys of the gaming world? You bring on your best, most innovative design, which includes a slew of analog content. Here's your chance to take a peek under the hood of the Tiger Gizmondo hand-held gaming product.
Dual mux-buffer boosts signal integrity
Product News  
10/24/2005   Post a comment
National Semiconductor Corp.'s dual multiplexer/buffer with integrated equalizers, programmable pre-emphasis, and up to 4 Gbits/s of serial I/O performance, are said to provide the lowest jitter and longest cable reach in the industry.
Intelligent distributed control devices combine flash MCU and analog ICs in single package
Product News  
10/24/2005   Post a comment
The new Freescale system-in-package devices combine the local interconnect network physical layer with high-performance flash microcontrollers and analog integrated circuits. The result allows design engineers to easily integrate power and control.
Battery authentication improves battery security
Design How-To  
10/24/2005   Post a comment
There is a huge market for counterfeiters to supply cheap replacement batteries and peripherals. Unfortunately, many of them don't have the safety and protection circuits required by the OEM. Here are a couple battery authentication design ideas to meet your customer needs for safety and price.
Atheros names Dan Artusi to board
News & Analysis  
10/24/2005   Post a comment
Wireless semiconductor supplier Atheros Communications Inc. has named semiconductor industry veteran Dan Artusi to its board of directors.
H.264 video encoding with Stretch's S5000 software-configurable processor
Design How-To  
10/24/2005   Post a comment
From a technical perspective, the primary difference between H.264 and other MPEG standards is the use of multiple reference frames, wider search ranges, and smaller macro blocks for motion estimation, all of which ultimately translate to increased computational intensiveness. A Stretch engineer explains how the new S5000 software-configurable processor offers unusual scalability and flexibility.
Get accurate current measurements to your controller with a maximum duty cycle clamp
Design How-To  
10/21/2005   Post a comment
Regulatory agencies (EN/IEC61000-3-2) require units that draw power over 75 watts have a specified-level of harmonic content. How to achieve that is a different story. Here are two circuits to accomplish a simple and inexpensive duty cycle clamp that can be adjusted to meet the needs of the circuit.
Driver/boost regulator illuminates LED-LCD combo
Product News  
10/21/2005   Post a comment
Linear Technology's LT3466-1, for single cell lithium-ion applications, contains a DC/DC converter for driving up to 10 white light emitting diodes (LEDs) and a separate converter for generating the bias voltages for thin-film-transistor liquid-crystal displays (TFT-LCDs) or driving an OLED display. Each channel has independent dimming and shutdown control.
Digital power to shake up power management market
News & Analysis  
10/21/2005   Post a comment
Databeans says there are hurdles that have prevented digital power from realizing it potential but things are changing and there is a growing opportunity for digital single chip power management solutions.
Smallest stepper controller IC can mount on the motor
Product News  
10/21/2005   Post a comment
AMI Semiconductor says its AMIS-30621 and -30622 stepper motor controller ICs for automotive applications are the industry's smallest. In a micro leadframe package, they are suited to remote and multiple axis positioning using a local interconnect network (LIN), or requiring serial connectivity, respectively.
Asahi Kasei introduces a low power audio ADC for mobiles and stereo microphones
Product News  
10/21/2005   Post a comment
Asahi Kasei Microsystems (AKM) has introduced the AK5701, a remarkably small, low power ADC with integrated microphone amplifier ALC and PLL, making it ideal for mobile phones, smart phones and PMP stereo microphone systems.
Switches tout improved density
Product News  
10/20/2005   Post a comment
Supertex Inc. rolled out two new low charge injection, 16-channel, 200-V analog switch ICs that tout improved density and performance.
ON Semi posts higher sales, earnings
News & Analysis  
10/20/2005   Post a comment
Semiconductor supplier ON Semiconductor Corp. reported net earnings of $23.5 million, or 6 cents per share on sales of $313.6 million in the third quarter, up from $18.5 million, or 5 cents per share on sales of $302.8 million in the previous quarter.
Clock-phase aligner bursts forth
Product News  
10/20/2005   Post a comment
Maxim Integrated Products Inc. said this is the industry's first burst-mode clock-phase aligner that acquires a signal in 13 bits — enabling best-in-class broadband passive optical network and gigabit passive optical network optical line termination designs.
Cypress posts another loss
News & Analysis  
10/20/2005   Post a comment
Semiconductor supplier Cypress Semiconductor Corp. reported a GAAP net loss of $5.9 million, or 4 cents per share on sales of $227.1 million in the third quarter, compared to earnings of $4.3 million, or 12 cents per share on sales of $219.6 million in the year-ago quarter.
Fuel gauge costs under $1
Product News  
10/20/2005   Post a comment
Designed for especially cost-sensitive applications, Dallas Semiconductor's DS2745 is a Li+ battery monitor with an I2C interface that costs under $1. Mounted on either the host side or the battery-pack side of the application to continuously monitor battery capacity, the DS2745 measures current, accumulated current, voltage, and temperature.
AnalogicTech introduces a high efficiency charge pump for white LED flash applications
Product News  
10/20/2005   Post a comment
Advanced Analogic Technologies has introduced the AAT3175, a low noise, high frequency, current mode charge pump for white LED flash applications. It is the company’s first dedicated current mode fractional/doubler charge pump for camera flash applications, and is capable of driving up to three flash LEDs at 300mA total current with current sharing from a 2.7V to 5.5V source.
PMC-Sierra, Power Integrations post gains
News & Analysis  
10/19/2005   Post a comment
Semiconductor suppliers Power Integrations Inc. and PMC-Sierra Inc. posted sequential sales and earnings gains.
How to cut power consumption for high-speed apps with A/D converter architecture
Design How-To  
10/19/2005   Post a comment
Designers are always looking for ways to cut power expenditure. Here's one that is a power-efficient architecture that eliminates those pesky, power-hungry sample-and-hold amplifiers and gain stages used in some pipeline converters. Just right for high-speed apps
Mapper supports all protocols
Product News  
10/19/2005   Post a comment
Exar Corp. launched what it claims is the industry's first universal multiprotocol framer for Ethernet-over-Sonet applications.
LDOs trumpet high PSRR
Product News  
10/18/2005   Post a comment
Intersil Corp.'s new family of dual low dropout regulators are said to provide high power supply rejection ratio, low quiescent current, and good performance for noise-sensitive applications like imaging sensors for digital still cameras or cellular phone camera modules, MP3 players and portable medical and instrumentation devices.
Mobile PC power management chip provides the necessary four output voltages
Product News  
10/18/2005   Post a comment
STMicroelectronics delivers single-chip power management solution for notebook PCs and portable systems. It offers a dual step-down controller specifically for the four output voltages needed by notebook system power.
Mobile silicon could propel China's 3G market
News & Analysis  
10/18/2005   Post a comment
Two companies focused on China’s domestic third-generation mobile standard have made advances this week with silicon platforms badly needed by system vendors to seed the emerging market.
Analog Devices’ high-current switching controller performs sequencing, tracking and margining
Product News  
10/18/2005   Post a comment
Analog Devices introduces a single-phase, high-current switching controller ideal for applications that demand regulated precision and reliability, such as wireless base stations and network computing systems. The ADP1822 is a synchronous, fixed-frequency switching controller well suited for high current applications – such as communications infrastructure systems and high performance servers.
Integrated clock synthesizers cut costs
Product News  
10/17/2005   Post a comment
Micrel Inc. rolled out two precision, low-jitter clock synthesizers that are said to provide an extremely high level of integration for system timing generation.
Switcher IC simplifies cell-phone chargers
Product News  
10/17/2005   Post a comment
Power Integrations Linkswitch-LP family, using very few external components, is designed to replace unregulated (linear) transformer-based battery chargers delivering up to three watts for cell phones, cordless phones, portable audio players, shavers, and other personal electronics.
IP licensor On Demand seeking investors
News & Analysis  
10/17/2005   Post a comment
Intellectual-property licensing company On Demand Microelectronics GmbH is seeking venture capital investment in an effort to become a silicon supplier.
Bypass or decouple your way to power supply noise reduction
Design How-To  
10/17/2005   Post a comment
Going from textbook design of power supplies to the real world often ends in a frustrating hunt for glitches. Here's some help understanding the dynamics of power with a recipe to get you on your way to a clean, low-noise design.
Motor driver IC integrates Hall sensor
Product News  
10/17/2005   Post a comment
Allegro MicroSystems' A1441 is the company's first full-bridge brushless DC (BLDC) motor driver IC that includes a Hall commutation element. For single-phase, low-voltage motors, the chip is complete and no external devices are required.
Creating uniform LED intensity in RGB billboard and video displays
Design How-To  
10/17/2005   Post a comment
A stadium or advertising display integrates dozens of display panels and thousands of LEDs. Inside each array, LEDs (also referred to as pixels) will yield significant variations in brightness, such that the delta in lumens between the brightest and dimmest LED can regularly approach 15 to 20 percent, if not more. Two TI engineers explain how to improve brightness uniformity.
Quad SPSTs tout fast switching
Product News  
10/14/2005   Post a comment
Following on the heels of its first high-performance analog switch announcement, Austriamicrosystems AG is expanding its offering to include quad-version single-pole, single-throw switches that similarly boast significant switching time improvement over competing devices.
PWM advances active-clamp converter designs
Product News  
10/13/2005   Post a comment
National Semiconductor says its LM5026 pulse-width-modulation (PWM) controller is the industry's most advanced type for forward converter toplogies using an active-clamp/reset design. National says this 100-volt current-mode device, designed to simplify loop compensation and reduce total parts count, boosts overall efficiency compared to standard forward converters in AC/DC and DC/DC telecom and industrial supplies.
Self-learning switching DC-DC converters meet smart power
Design How-To  
10/13/2005   Post a comment
If you design high-performance, state-of-the-art applications then you need smart power supplies that are adaptive, power efficient, and reliably accurate. Easy to say but how is it done? Here's another article from the Georgia Tech Power IC Design Lab that provides you with a self-learning DC-DC converter that meets the needs of smart power.
Fairchild Semiconductor posts loss
News & Analysis  
10/13/2005   Post a comment
Semiconductor supplier Fairchild Semiconductor International Inc. posted a third quarter loss of $20.8 million, or 17 cents per share on sales of $345.5 million, compared with net earnings of $13.4 million, or 11 cents per share on sales of $409.7 million in the year-ago quarter.
Metering ICs turn power measurement up a notch
Product News  
10/12/2005   Post a comment
The CS5461A and CS5463 high precision power meter ICs from Cirrus Logic are suited for next-generation applications. An upgrade to the company's CS5460A device, these pin-for-pin compatible devices add circuitry to measure apparent and reactive power, thus cutting the bill-of-materials and overall development time.
Clock buffers blow away competition?
Product News  
10/12/2005   Post a comment
Cypress Semiconductor Corp. released zero-delay buffers (ZDBs) that are said to outperform all pin-compatible products for high-speed communications and consumer devices in terms of operating frequency and cycle-to-cycle jitter.
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