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Content tagged with Analog ICs
posted in August 2006
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Digital power chips work their way into the loop
Product News  
8/31/2006   Post a comment
Product recap - Digital power is advancing on a broad front, even as IC makers struggle to balance its purpose and scope against marketing hype to take a still ill-defined area "to the next level."
Real time clocks boost security, tamper detection
Product News  
8/31/2006   Post a comment
Intersil's ISL1219/21 real time clocks with improved tamper detection are suited for time stamping single events such as the moment a warranty is voided by the removal of a cover, or recurring events such as the opening and closing of a security door.
Clamping circuit tames automotive voltage transients
Design How-To  
8/30/2006   Post a comment
Here's a circuit that clamps input voltage to a desired maximum voltage (even during a notorious "load dump"), while still retaining a large current delivering capability and minimizing losses during non-transient operation.
SiGe Semiconductor raises $19.5 million
News & Analysis  
8/30/2006   Post a comment
The investment will fund new product development and the growth of operations in support of the company's expanding global customer base.
Safe alternative to flammable lithium-ion battery technology
News & Analysis  
8/30/2006   Post a comment
The news is full of articles with reports about traditional lithium-ion batteries fire safety issues. New batteries from a company called Zinc Matrix Power may offer a solution that is water based and doesn't contain lithium or flammable liquids.
Dual-triple-quad sequencer/supervisors ease design-in
Product News  
8/30/2006   Post a comment
Offering maximum design flexibility, Maxim's MAX16025/16026/16041 dual voltage monitor/supervisors, the MAX16027/16028/16042 triple devices, and the MAX16029/16030/16043 quad devices for power-sequencing applications offer fixed and adjustable threshold-setting through logic inputs, and sequence timing via small external capacitors.
AMIS appoints Maxim exec president and COO
News & Analysis  
8/29/2006   Post a comment
AMI Semiconductor Inc. has appointed Dr. Ted Tewksbury president and chief operating officer, effective Sept. 4.
Motorola to develop mobile WiMax chipsets
News & Analysis  
8/29/2006   Post a comment
Motorola Inc. has announced a strategic initiative to develop mobile WiMax chipsets for the company's next-generation WiMax devices.
Temperature sensors expand notebook, server monitoring
Product News  
8/29/2006   Post a comment
National Semiconductor's expanded family of TruTherm temperature sensors for monitoring notebooks, desktops and servers powered by high-performance microprocessors manufactured on 65 and 90 nm processes include five new entries with extended capability.
Agilent completes Xpedion acquisition
News & Analysis  
8/28/2006   Post a comment
Agilent Technologies has completed the acquisition of privately held EDA vendor Xpedion Design Systems. Financial details were not disclosed.
Boost converter powers LCDs
Product News  
8/28/2006   Post a comment
Advanced Analogic Technologies' AAT1232, for single-cell portable products, delivers 100 mA at 24 volts for OLEDs, LCDs, and CCDs.
Report: ON Semi to meet guidance
News & Analysis  
8/28/2006   Post a comment
Semiconductor supplier ON Semiconductor is tracking toward the midpoint of its guidance range for sales of $405 to $415 million in the third quarter ended September, according to a report by securities firm Wedbush Morgan Securities.
RF Monolithics buys networking, software companies
News & Analysis  
8/28/2006   Post a comment
RF Monolithics Inc. has signed definitive agreements to acquire Cirronet Inc., a wireless data communications and networking company, and Caver-Morehead Systems Inc., a supplier of computerized maintenance management system (CMMS) software.
Rail-to-rail comparators have LVDS outputs
Product News  
8/28/2006   Post a comment
Analog Devices' 10-member ADCMP60x family of rail-to-rail comparators, touted as the first to include low-voltage differential signaling (LVDS) outputs, are thus suited for driving such devices as FPGAs and ASSPs in a wide range of differential-mode applications.
Buck-boost vs. buck converter: it's about battery life in portables
Design How-To  
8/28/2006   1 comment
Micro hard drives used in portable electronics can use either a buck or a buck/boost converter but there are challenges with each design. The buck converter has higher efficiency but the buck-boost can handle all voltage requirements. Find out which converter is best for your application.
Tutorial: Basics of choosing and designing the best filter for an effective data-acquisition system
Design How-To  
8/28/2006   Post a comment
Filters are very necessary and unavoidable "evil" of the signal path; understand your options when making the filter decisions. The validity of the output signal of each stage is determined in terms of amplitude integrity, linearity and frequency content as it relates to the input signal. An industry expert explains how it all fits together.
PWM controller improves transient response, reduces output capacitors
Product News  
8/25/2006   Post a comment
Intersil introduces four-phase PWM buck controllers that it says delivers the industry's fastest transient response and highest system accuracy.
Alliance Semi to buy back $30 million in shares
News & Analysis  
8/25/2006   Post a comment
Alliance Semiconductor Corp. has commenced a tender offer in which it will spend up to $30 million to repurchase up to 10,909,090 shares of its common stock, about 30.6 percent of its outstanding shares, for cash.
Quad sequencer IC touts highest accuracy
Product News  
8/25/2006   Post a comment
Analog Devices' ADM1185 quad supply voltage monitor/ sequencer is accurate to ±0.8 percent, which the company says is the best in the industry.
8-bit DAC touts highest linearity
Product News  
8/25/2006   Post a comment
austriamicrosystems AS1504/05 family of 8-bit DACs, with shutdown and mid-scale reset, claims the industry's highest linearity for devices with 8 analog output channels.
Controllers power Duo Notebook PC designs
Product News  
8/25/2006   Post a comment
Semtech Corp.'s SC452 and SC454 PWM controllers meet the core-supply drive requirements for notebook computers that incorporate Intel Centrino Duo mobile technology.
LDO has shutdown and power-good pins, bond-wire compensation
Product News  
8/24/2006   Post a comment
Microchip says its 1.5-amp LDO, suited for advanced CPU and logic cores, is the industry's first with shutdown capability, a power-good output, programmable power-good delay, and bond-wire compensation.
Controller IC simplifies dot-matrix LCDs for portables
Product News  
8/24/2006   Post a comment
EM Microelectronic's EM6110 bitmap controller and driver chip for full dot-matrix monochrome TN and STN LCDs is highly integrated, simplifying the design of the display electronics in headsets, weigh scales, utility meters, and battery-operated products.
JFET op-amp advances IC test-and-measurement
Product News  
8/24/2006   Post a comment
NEC Electronics' JFET-class dual operational amplifier, the uPC835, touts a high slew rate, high capacitive load capability and a small package for next-generation integrated-circuit test equipment.
Meet the challenges for high-availability telecom with configurable power management
Design How-To  
8/23/2006   Post a comment
Here's how power controller can help handle the power challenges that arise when mixing legacy with cutting edge designs.
LDO dynamically improves the input and load transient response
News & Analysis  
8/23/2006   Post a comment
Ricoh has launch the R1182x single seamless LDO. The low power LDO is enhanced with a circuit which dynamically improves the input and load transient response performance at higher output current demands and consequently results in a behavior such as a low noise LDO.
12-bit DAC touts best SFDR at RF
Product News  
8/22/2006   Post a comment
Maxim's 12-bit MAX19692, a 2.3 Gsps digital-to-analog converter (DAC), claims best-in-class dynamic range (SFDR) among high-speed DACs that can directly synthesize high-frequency and wideband signals in multiple Nyquist zones.
Light-to-digital sensors simplify smart brightness control
Product News  
8/22/2006   Post a comment
Intersil's ISL29001 and ISL29002 sensors convert visible light (380 to 770 nm) to a 15-bit, I2C output signal suited to smart display applications.
Stackable controller ICs simplify multiphase DC/DCs
Product News  
8/21/2006   Post a comment
Product Review - Texas Instruments' TPS40140 PWM controller, touting a simpler approach to multiphase DC/DC topologies, can be scaled up to 16 phases to facilitate 320-amp service.
Virtual prototyping speeds mixed-signal IC design
Design How-To  
8/21/2006   Post a comment
Virtual prototyping has been adopted for large digital designs, but has not yet extended to analog/mixed-signal designs, notes Cadence Design Systems' Raja Mitra. He shows how analog virtual prototyping could work.
Stackable controller maximizes power density and energy performance
Product News  
8/21/2006   Post a comment
TI introduces a flexible PWM controller that enables power supplies to easily scale up to 320 A.
Unscrambling the power losses in switching boost converters
Design How-To  
8/18/2006   Post a comment
For portable devices, battery life and efficiency reign supreme. Here's help to unscramble the power-consuming ways of the often inefficient step up converters and help you balance your choice between designing with the buck and boost converters.
Rugged high-voltage ICs boost motor, audio applications
Product News  
8/18/2006   Post a comment
International Rectifier's IRS21xx and IRS21xxx additions to the company's line of G5 500- and 600-volt high-voltage integrated circuits (HVICs), 19 additional versions in all, boast greater ruggedness for motor control, lighting, switchmode power supplies, audio, and flat-panel displays.
Transmitter, receiver chips extend HDTV
Product News  
8/18/2006   Post a comment
Poised for the rising tide of high-definition audio and video systems, Analog Devices has extended its line of High-Definition Multimedia Interface ICs with seven new transmitter, receiver and multiplexer chips that support HDMI v1.2a signals up to UXGA resolutions (1600-by-1200 at 60 Hz) and DVI (digital video interface) v1.0.
An intuitive, practical approach to mixed-signal grounding
Design How-To  
8/18/2006   Post a comment
Proper technique results in signal integrity, performance enhancement, and EMI minimization. Learn how to optimize your layout by following these guidelines.
CMOS dual op-amp challenges bipolars for high precision, low noise
Product News  
8/17/2006   Post a comment
Linear Technology's dual-section LTC6244, the company's newest addition to its family of CMOS op amps, touts a gain-bandwidth of 50 MHz and input characteristics that challenge precision bipolar amplifiers.
Clock w/VCXO chip is cost-effective for SONET systems
Product News  
8/17/2006   Post a comment
Maxim's MAX9450/MAX9451/MAX9452 clock generators integrate a VCXO, PLL, and buffer to provide a compact and cost-effective one-chip solution for the timing chain in SONET and SDH data-communications systems and base-station applications.
On-line evaluation tool simplifies implementing DDS semiconductors
Product News  
8/16/2006   Post a comment
On-line evaluation tool simplifies task of selecting, evaluating and implementing direct digital synthesis (DDS) semiconductors in applications ranging from test and measurement equipment to wireless and satellite communications.
Zoran threatened with Nasdaq delisting
News & Analysis  
8/16/2006   Post a comment
Joining a growing list of firms under scrutiny for failing to make regulatory filings in a timely fashion, fabless semiconductor vendor Zoran said it has received notification from the Nasdaq marketplace that its stock may be de-listed from the exchange.
Cartesian loop transmitter IC: A point solution for linear RF
Product News  
8/15/2006   Post a comment
CML's newly announced CMX998 Cartesian Feedback Loop Transmitter IC is designed to provide manufacturers of two-way wireless systems with a one-chip solution for linearizing the output of the system's RF power amplifier (PA).
Altera, Finnish firm offer development kits for OBSAI design
News & Analysis  
8/15/2006   Post a comment
Claiming an industry first, programmable logic supplier Altera and wireless technology specialist Elektrobit Group announced the availability of development kits for designing applications in compliance with the Open Base Station Architecture Initiative (OBSAI) Reference Point 3-01 (RP3-01) specification for remote RF heads.
Sirenza Microdevices to buy MicroLinear for $45M
News & Analysis  
8/15/2006   Post a comment
RF component supplier Sirenza Microdevices Inc. has signed a definitive agreement to acquire fabless semiconductor company MicroLinear Corp., in a stock swap.
DC/DC chip can be programmed from I2C, SSC interfaces
Product News  
8/15/2006   Post a comment
Advanced Analogic Technologies says its AAT 1142, an 800-mA voltage-scaling step-down converter for portable applications, is the first to offer dynamic voltage management through both a two-wire I2C interface and the company's single-wire Simple Serial Control (S2Cwire) digital interface.
Audio and stereo amp ICs extend Boomer portfolio for portables
Product News  
8/15/2006   Post a comment
National Semiconductor's LM4941 audio amp and LM4985 stereo amp additions to the company's Boomer line of Class AB amplifiers, in the industry's smallest micro SMD package (0.4 mm pitch), improves performance in space-constrained portable and wireless applications.
Quad driver can light thirty-two 1-amp LEDs
Product News  
8/14/2006   Post a comment
Linear Technology's LT3476 DC/DC converter chip contains four independent driver channels that can each drive up to eight 1-amp LEDs in series. Thus the LT3476 can drive up to thirty-two 1-amp LEDs for 100-watt LED applications while delivering efficiencies up to 96 percent.
World's thinnest Wi-Fi power amplifier chip?
Product News  
8/14/2006   Post a comment
Here's news of a 3-mm-square SiGe 2.4-GHz power amp chip that has a Z-height of 20-mils. The 79-cent device can deliver as much as 200-mW of RF, and can tolerate impedance mismatches.
Precision dual current source is software-programmable
Design How-To  
8/14/2006   Post a comment
Get precise, dual-source current control from a two-IC circuit, useful for PIN diodes and other applications
SiGe's Wi-Fi power amp comes in energy-saving package
Product News  
8/14/2006   Post a comment
On-chip digital enable-control circuitry allows the SE2523BU to be connected directly to a CMOS baseband or transceiver.
TU Darmstadt to host FDL'06
News & Analysis  
8/14/2006   Post a comment
The evolution of Power over Ethernet brings high power
Design How-To  
8/14/2006   Post a comment
PoE delivers DC power in tandem with 10/100/1000 Mbps data. As it evolves, there is a need for enhancements to the standard to enable emerging applications. Here are some circuit designs you'll want to know about to keep up with the evolving standard.
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