Dual current sense amplifiers deliver fast response, precision
Product News 1/31/2007 Post a comment
Linear's LTC6103 contains two independent, high side current sense amplifiers that feature input bias current of 170-nA max and maximum input offset voltage of 450-µV. This precision performance allows the part to resolve very small currents and still operate over a large dynamic range.
GloNav taps Jazz to produce low-power GPS RFIC
Product News 1/31/2007 Post a comment
Using Jazz's 0.18-micron SiGe BiCMOS process, GloNav has developed a low-power L1 GPS RFIC that operates from a single 1.8-V supply to consume just 15-mW of power, a key requirement for today's cellular handsets, portable consumer devices and battery-operated GPS devices.
Save power and real estate with a programmable reset controller with debounced input
Design How-To 1/31/2007 Post a comment
The long time delay of the Hard Reset poses a design problem because delays into the tens of seconds call for very large value resistors and capacitors. The analog solution is both simple and low cost but it lacks flexibility and accuracy. A programmable reset timer becomes the obvious solution when considering long delay times or multiple timers. Here's an article that tells you the specifics about how to create this design.
Actel expands channel in China
News & Analysis 1/30/2007 Post a comment
To promote wider use of its field-programmable gate array devices by Chinese designers, Actel Corp. announced a significant expansion of its sales channel in Greater China.
Get control of buck regulator high step-down ratios
Design How-To 1/30/2007 Post a comment
Feedback loops for buck type switching regulators are usually hard to compensate and typically require current mode control. Unfortunately, noise sensitivity is a problem. A recent development called Emulated Current Mode Control can improve the ability to operate with very high step down ratios while maintaining good noise immunity. Here's what you need to know.
Auto-focus zoom camera block design uses wide range image sensor for surveillance
Design How-To 1/26/2007 Post a comment
Dallmeier Components' new Integrated Optics Package for use in pan-tilt-zoom surveillance video cameras incorporates Pixim's Orca Chipset for ultra wide dynamic range imaging (102dB typical). The image sensor converts light to a digital signal directly at the point of capture, enabling each pixel to have independent, optimized exposure. Here's the inside story of how it works and how it was designed.
TI bests Q4 expectations, plans layoff
News & Analysis 1/22/2007 Post a comment
Surprising Wall Street analysts who were expecting a weaker quarter, Texas Instruments reported a net income of $668 million on sales of $3.46 billion for the fourth quarter of 2006. But the company issued a first quarter revenue outlook that fell below analyst expectations and announced plans to eliminate about 500 jobs.
Get the most (charging) out of your USB port
Design How-To 1/21/2007 Post a comment
One of the features of the USB is its advanced power management capability. Find out what the power characteristics of USB ports are, what the challenges are, and how applications can benefit from available USB power.
Lower-skew fanout buffers keep system clocks right on time
Product News 1/18/2007 Post a comment
ON Semiconductor's NB3N551, NB3L553, and NB3N2304NZ 1:4 fanout buffers, high-performance additions to the company's clock management portfolio for telecom, networking, and automated test equipment, have an output skew of as little as 160 ps across its outputs, versus 250 ps for typical devices.
Dual 2-amp LDO features ramp control and tracking/sequencing
Product News 1/17/2007 Post a comment
Micrel's MIC68220 dual 2-amp LDO regulator, for powering FPGA and microcontroller applications in broadband modems, routers, set-top boxes, home entertainment systems, storage networks, wireless base stations, and car infotainment systems, touts unique functionality that includes ramp control and tracking and sequencing capability in the smallest possible footprint.
World's smallest digital TV demodulator?
Product News 1/16/2007 Post a comment
Here's news of a very small ATSC-A/53-compliant demodulator that meets the imminent FCC tuner mandate for the US. It will be able to demodulate standard and high-def TV meeting ATSC-A/53 specs for North American broadcast standards, and QAM 64/256 as specified by the ITU.