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Content tagged with Analog ICs
posted in April 2004
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Monolithic RF CMOS Digital step attenuators impress with IP3 spec
Product News  
4/29/2004   Post a comment
Peregrine Semiconductor introduced a new family of Digital Step Attenuators (DSAs) that demonstrate new levels of broadband linearity, attenuation accuracy, and programming flexibility.
Li+ charger chip won't overheat
News & Analysis  
4/28/2004   Post a comment
Linear Technology's LTC4059A is a fully integrated linear battery charger in a 2-by-2 mm DFN package that can charge a single-cell Li-Ion battery at 900 mA without danger of overheating itself or surrounding components. A patented thermal regulation scheme prevents the junction temperature of the IC from exceeding 115°C by reducing charge current during high-power or high-ambient-temperature operation. The charger, suited to digital still cameras, cell phones, PDAs and USB-equipped handheld d
Ballast ICs bring transformerless dimming
News & Analysis  
4/28/2004   Post a comment
International Rectifier's 600-volt IR21592 and IR21593 dimming ballast ICs, each with a phase control loop and half-bridge driver for fluorescent lamps, eliminate the need for a current-sensing transformer. IR says these new devices offer the most comprehensive set of sense and control features available, including ignition detection and full-scale dimming, as well as brownout- and over-temperature protection. A microcontroller interface is included for maximum flexibility in programming such pa
Smallest D/A converter resolves space, performance challenge
News & Analysis  
4/28/2004   Post a comment
Analog Devices introduced the first members of its new nanoDAC family of digital-to-analog converters that provide breakthrough performance in smaller packages. The compact size and low power consumption of these new converters provide significant advantages in space-constrained applications.
A/D converter offers outstanding -95dB peak harmonic and 93 dB SNR
News & Analysis  
4/28/2004   Post a comment
DATEL's ADS-953 optimizes signal return paths and provides internal, local decoupling to obtain an outstanding "95dB peak harmonic specification and 76μVrms noise-level performance.
TIA offers temperature and long-term stability for photodiode applications
News & Analysis  
4/28/2004   Post a comment
TI announced a transimpedance amplifier featuring 90MHz gain bandwidth, less than 25uV offset and inherent temperature and long-term stability. The device is ideal for high-speed photodiode applications, including optical power monitoring, security scanners, medical diagnostics and current measurement in test equipment.
Robots readied to take on search-and-rescue duties
News & Analysis  
4/28/2004   Post a comment
Microminiaturization has made possible swarms of autonomous robots using nothing more than off-the-shelf parts. But concentrating their wireless chatter and getting them to cooperate to solve problems may be five years away, the National Science Foundation cautions. It's putting $2.6 million into a five-year effort to turn multiple wireless robots into an emergency search-and-rescue team. Colin Johnson has this report.
Bad signals interfere with 90-nm designs
News & Analysis  
4/28/2004   Post a comment
When Agilent Technologies Inc.'s ASIC products division first moved from 130- to 90-nanometer chip design, it got a nasty surprise. "Signal integrity," said Jay McDougal, microprocessor design methodology manager at Agilent, "was really an order of magnitude worse." McDougal's experience seems to track with that of other users and matches what EDA vendor representatives are saying. Such problems as crosstalk-induced delays, crosstalk-induced glitches and power noise due to voltage drop are all
Synopsys keynoter cites crosstalk, power challenges
News & Analysis  
4/28/2004   Post a comment
Crosstalk and power are extremely difficult problems to solve, and will require significant changes to the existing chip design flow, according to Li-Pen Yuan, R&D director for extraction and signal integrity at Synopsys. Yuan offered a keynote speech at the Electronic Design Processes (EDP-2004) methodology conference here Monday (April 26). Richard Goering was there.
ST to launch single-chip satellite tuner IC
News & Analysis  
4/28/2004   Post a comment
In hopes of increasing its share in the global satellite set-top box market, STMicroelectronics on Tuesday (April 27) unveiled a single-chip silicon tuner designed to receive digital TV or Web-based material via satellite. ST, the world's largest IC supplier for set-top boxes, hopes to reinforce its market position by introducing the new silicon tuner that can be paired with ST's own multi-standard demodulator. That device is widely used in current satellite TV applications. From Paris, Junko Yo
Smallest D/A converter resolves space, performance challenge
Product News  
4/27/2004   Post a comment
Analog Devices introduced the first members of its new nanoDAC family of digital-to-analog converters that provide breakthrough performance in smaller packages. The compact size and low power consumption of these new converters provide significant advantages in space-constrained applications.
Li+ charger chip won't overheat
Product News  
4/27/2004   Post a comment
Linear Technology's LTC4059A is a fully integrated linear battery charger in a 2-by-2 mm DFN package that can charge a single-cell Li-Ion battery at 900 mA without danger of overheating itself or surrounding components. A patented thermal regulation scheme prevents the junction temperature of the IC from exceeding 115°C by reducing charge current during high-power or high-ambient-temperature operation. The charger, suited to digital still cameras, cell phones, PDAs and USB-equipped handheld d
Ballast ICs bring transformerless dimming
Product News  
4/26/2004   Post a comment
International Rectifier's 600-volt IR21592 and IR21593 dimming ballast ICs, each with a phase control loop and half-bridge driver for fluorescent lamps, eliminate the need for a current-sensing transformer. IR says these new devices offer the most comprehensive set of sense and control features available, including ignition detection and full-scale dimming, as well as brownout- and over-temperature protection. A microcontroller interface is included for maximum flexibility in programming such pa
Silicon tuner breaks power barrier for VoIP cable phone services
Product News  
4/26/2004   Post a comment
Addressing the radio frequency power and pricing issues central to the rollout of Voice over Internet Protocol (VoIP) cable phone services, Microtune, introduces a single-chip tuner that it says cuts RF costs by 25%, space by 25% and power by 40%.
IR receiver combines detector, preamp and supports variable voltages
Product News  
4/26/2004   Post a comment
A new series of miniaturized, multi-functioned SMD IR receiver modules that provide an industry-leading variable supply voltage range from 2.7 V to 5.5 V is offered by Vishay Intertechnology.
Media processing meets portable content
News & Analysis  
4/26/2004   Post a comment
The poliferation of consumer audio-video device and streaming-media types has kept chip makers and systems houses scrambling to find the best ways to transfer content and control functions between devices.
The wireless electronic program guide
News & Analysis  
4/26/2004   Post a comment
Companies are increasingly incor-porating wireless features into their products, with emphasis on a wireless connection between a set-top-box and a plasma display television.
Rules changing for the home media serve
News & Analysis  
4/26/2004   Post a comment
Digital home networks have undergone a rapid evolution that has left the home's traditional PCs and gateway-hub combination in the dust.
Interoperability Forms Foundation of the Digital Home
News & Analysis  
4/26/2004   Post a comment
A curious, though completely logical phenomenon has emerged with the growth in popularity of all-digital personal video recorders over the last year or so.
Nearing the Age of Digital Media Portability
News & Analysis  
4/26/2004   Post a comment
With a plethora of cell phones, PDAs, DVDs, set-top boxes, MP3 players and other portable devices ready to burst into the consumer market, the goal now is to provide consumers with ubiquitous access to their coveted entertainment anywhere and anytime.
Digital Consumer
News & Analysis  
4/26/2004   Post a comment
Digital Consumer
Content portability takes priority for consumer devices
News & Analysis  
4/26/2004   Post a comment
Portable media is one vision that unites often-contentious PC and consumer electronics manufacturers.
Transcoding key to sharing multimedia
News & Analysis  
4/26/2004   Post a comment
Consumers are witnessing a dramatic transformation in their ability to create and share multimedia content across devices.
Experiments suggest methods for CMRR measurement " Part 1
News & Analysis  
4/26/2004   Post a comment
Differential ports make possible the recovery of signals mixed with common-mode noise, and the use of such ports gives rise to the need for measuring common mode rejection ratio (CMRR). In part 1 of this s two-part tutorial, a Maxim engineer provides insights into the forms of CMRR, its relationship ground, and its impact of on op amps and differential line drivers. In part 2 (next week), the author describes signal conditioning applications which need to pay special attention to CMRR.
A/D converter offers outstanding -95dB peak harmonic and 93 dB SNR
Product News  
4/26/2004   Post a comment
DATEL's ADS-953 optimizes signal return paths and provides internal, local decoupling to obtain an outstanding "95dB peak harmonic specification and 76μVrms noise-level performance.
How specifications drive analog design
News & Analysis  
4/23/2004   Post a comment
Spec-driven design can make it easier to build analog ICs. Architects from Cadence Design Systems, including Tina Najibi (right), show how designs, test cases, and behavioral models can all be created from specifications, and discuss automatic spec import and comparison.
Synchronous switching DC/DC controller guarantees output voltage regulation
Product News  
4/23/2004   Post a comment
Linear Technology introduces the LTC3831-1, a synchronous switching DC/DC controller that guarantees output voltage regulation of 0.75V or lower for systems needing precision active bus termination for high-speed logic interface.
Disk storage revamps for mobile media
News & Analysis  
4/23/2004   Post a comment
In many ways, devices like MP3 players have dragged around many of the design legacies of PCs. A PC's hard drive and motherboard, for example, each have their own ROM, RAM and CPU.
TIA offers temperature and long-term stability for photodiode applications
Product News  
4/22/2004   Post a comment
TI announced a transimpedance amplifier featuring 90MHz gain bandwidth, less than 25uV offset and inherent temperature and long-term stability. The device is ideal for high-speed photodiode applications, including optical power monitoring, security scanners, medical diagnostics and current measurement in test equipment.
Buck bias-regulator IC boosts high-voltage systems
Product News  
4/22/2004   Post a comment
National Semiconductor bills its LM5008 as the industry's first 100-volt rated, buck bias regulator, which operates at up to 90 percent efficiency. The latest addition to the company's LM5000 family of high-voltage solutions and a second-generation buck bias regulator, the LM5008 analog-BiCMOS-DMOS IC has an integrated 100-volt, 500-mA n-channel power MOSFET and all the functions needed to implement a compact bias power supply. This includes circuitry to support short-circuit and over-temperatur
Limiting amp with compatible pin-out has programmable loss-of-signal
Product News  
4/21/2004   Post a comment
Maxim Integrated Products introduces the MAX3747/MAX3747A 3.3V, low-power, multirate limiting amplifiers with a programmable loss-of-signal indicator. The amps are also pin-compatible to the Micrel limiting amplifier.
150 mA LDO eases into automotive keyless entry and lighting applications
News & Analysis  
4/21/2004   Post a comment
National Semiconductor introduces an ultra-low quiescent current LDO regulator that expands its portfolio of power management devices for automotive keyless entry, lighting and other keep alive electronics.
Dual Codec offers power savings for mobile comms devices
News & Analysis  
4/21/2004   Post a comment
Wolfson Microelectronics offers its third generation of audio/touch-panel codecs. The WM9713L provides broad functionality and new levels of power-saving for the next wave of mobile communications devices.
Dual PWM controller converts directly from AC/DC adaptor, reduces real estate, BoM
News & Analysis  
4/21/2004   Post a comment
A dual PWM controller Intersil offers a wide input voltage range capability that allows for voltage conversion directly from an AC/DC adaptor, from the Li-ion battery pack or from system 5 V or 3.3 V buses.
D/A converter blazes at 1.2 GSPS with 14-bit resolution
News & Analysis  
4/21/2004   Post a comment
Faster than a ... and more powerful than... this new DAC sets a sampling record offering 1.2 GS/sec while retaining a high resolution of 14-bits. It's optimized for high frequency and wide bandwidth synthesis applications.
Convert single supply 13-bit ADC voltage input to bi-polar
News & Analysis  
4/20/2004   Post a comment
Many A/D converters operate exclusively in a 5V single-supply environment and only accept single-sided input signals or differential signals with some limitations, writes Bonnie Baker, Microchip Technology's famous apps engineer in this article culled from the Chipcenter archives. An alternative to these single-ended input devices is a true-differential input device, which opens the door for a large array of single supply application solutions, she says.
The design of LVDS interface for a Multi-Channel A/D Converter
News & Analysis  
4/20/2004   Post a comment
This article, from the ChipCenter archives, analyzes system design specifications for a low-voltage differential serial output interface of a multi-channel, high-speed analog-to-digital (A/D) converter. For A/D applications, says Texas Instruments' John Wu, the two most important specifications have always been bit resolution and data sample rate. However, the specification of an output data interface is increasingly important.
Mixed-signal vendors to rise, comms report says
News & Analysis  
4/20/2004   Post a comment
A new report on communication aggregation processors from The Linley Group argues that vendors with expertise in Ethernet switching, encryption or media-access control devices may be able to gain ground over those with base expertise in control-plane processors. The latter group includes Motorola/Freescale and Integrated Device Technology Inc. Loring Wirbel has this report.
TI launches home multimedia engine
News & Analysis  
4/20/2004   Post a comment
Texas Instruments Inc. has launched an IC aimed at home streaming media that integrates the company's C54x DSP, an ARM9 RISC processor and a host of peripherals.
Re-inventing the Wheel... as a square
Blog  
4/20/2004   Post a comment
We've all seen renderings of the disconnect between marketing, engineering and customers in product development - using a child's backyard swing as the example. "What marketing requested" shows a three-tiered swing, with cushions and lollypop dispensers. "What engineering came up with" shows a rocket-propelled platform, springing back-and-forth through a steel-reinforced tunnel. "What the customer really wanted," of course, was a truck tire hanging by a rope from a tree limb. This month, Sanjaya
D/A converter blazes at 1.2 GSPS with 14-bit resolution
Product News  
4/20/2004   Post a comment
Faster than a ... and more powerful than... this new DAC sets a sampling record offering 1.2 GS/sec while retaining a high resolution of 14-bits. It's optimized for high frequency and wide bandwidth synthesis applications.
Dual PWM controller converts directly from AC/DC adaptor, reduces real estate, BoM
Product News  
4/20/2004   Post a comment
A dual PWM controller Intersil offers a wide input voltage range capability that allows for voltage conversion directly from an AC/DC adaptor, from the Li-ion battery pack or from system 5 V or 3.3 V buses.
Fan ICs cool the noise
Product News  
4/20/2004   Post a comment
FOCUS ON Thermal Management - With the major cooling issues for desktop machines behind them, makers of fan-management IC are digging deeper into their bag of tricks to minimize audible fan noise in systems extending to servers and the manufacturing floor. Indeed, acoustic noise is as much a human-factors issue today in such areas as the industrial test facility and is the hostile environments under which various equipments operate. The road to killing the noise, particularly with the PWM-type (
Triple-output IC powers 5-inch TFT-LCDs
News & Analysis  
4/13/2004   Post a comment
Linear Technology's LTC3450, in a 3-by-3 mm QFN-16 package, is a complete DC/DC power converter solution for small (2-to 5-inch) thin-film transistor (TFT) liquid crystal display (LCD) panels. The LTC3450 comprises a synchronous boost converter (90 percent efficiency) and three charge pumps. The three charge pumps double, triple and invert outputs for VGH and VGL biasing. Working from a 1.5- to 4.6-volt input, the chip delivers all required TFT-LCD voltages: 5.x volts for AVDD; -5.x, -10.x, or -
Active Upconverting Mixer Integrates RF Transformer
News & Analysis  
4/13/2004   Post a comment
Two new high linearity upconverting RF active mixers with integrated RF transformers from Linear Technology provide the right combination of distortion, local oscillator drive requirement, port-to-port isolation, and conversion loss for RF designs.
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