News
Automotive EEPROMs use two cells per bit for ruggedness, reliability 10/2/2008
With the aim of ensuring reliable operation and long life in the demanding automotive environment, Rohm has introduced a series of EEPROMs that employ a double-cell structure. The BR25Hxx0 devices, which are SPI (serial-peripheral-interface)-bus memories, withstand the voltage surges, static discharge, heat, and vibration that they may encounter in automotive ECUs (engine-control units).Power-supervision IC measures regulator-input current, differential-output voltage 8/19/2008
Summit Microelectronics’ new SMM151 power-supervision IC allows digital control and monitoring of any voltage regulator. The device monitors input current to the target regulator so there is no added impedance to the output rail.24-bit delta-sigma ADC includes PGA 7/24/2008
The Analog Devices’ AD7190 delta-sigma converter includes the functions to make a complete precision-measurement front end.16-bit, 10M-sample/sec ADC uses SAR architecture 7/24/2008
Analog Devices’ new AD7626 ADC provides 16-bit samples at a 10-MHz rate while using 130 mW.Voices: National Semiconductor’s David Anderson 7/10/2008
EDN's Paul Rako talks with David Anderson, National Semiconductor's chief technologist for power management, about his long and distinguished engineering career, his company, and the present and future of power management.In-Depth
Silicon germanium: fast, quiet, and powerful 9/18/2008
SiGe processes can give analog-circuit designers fast, high-voltage transistors with low noise, whereas BiCMOS SiGe fits into CMOS process flows.Handcrafted analog gets automated assist 9/4/2008
EDA tools address simulation, verification, and layout for mixed-signal designs.Using low-cost CAT5 network cables for video transmission 8/31/2008
There are inherent problems in transmitting a video signal over hundreds of meters of CAT5 cable. Using equalization, as well as a differential transmitter and receiver, can help.It’s an electromagnetic-mechanical world 8/21/2008
Tales From The Cube: A father's lesson helps to reveal the culprit causing a noise spike in a magnetic pickup.High-voltage, low-noise dc/dc converters 8/7/2008
You can make a 1-kV dc/dc converter with only 100 µV of noise.Experts
Why tout a demo board nobody can buy? 10/2/2008
Marketing types are dying to talk to people, go to lunch, and network. Engineers, on the other hand, want to crawl into a corner with some hardware and be alone.Know your ceramic capacitor, part one 9/18/2008
Class I ceramic capacitors are temperature-compensated and, therefore, provide the most stable performance of all the classes.Transimpedance-amplifier stability is key in light-sensing applications 9/4/2008
A variety of precision applications sense light and convert that information into a useful digital word. Armed with a Bode plot, the designer must carefully correct circuit instability in the application's front end.Photo-sensing circuits: The eyes of the electronic world are watching 8/7/2008
Baker's Best: When exploiting the light sensitivity of silicon, the challenge lies in determining how to convert the low-level currents from the photo sensor into a useful electrical representation.The trouble with software people 7/24/2008
When you think about it, almost every major development in the last decade has been the result of overcoming the problems that software managers cause.DesignIdeas
