News
Interface module captures acceleration, vibration data 6/19/2008
The latest analog-input board from United Electronic Industries features four isolated accelerometer/vibration-sensor channels with sample rates to 125k samples/sec per channel, 24-bit resolution, and 109-dB SNR (signal-to-noise ratio).Low-power audio codec incorporates charge pump for Class G headphone amplifier
6/17/2008
Wolfson recently announced the low-power WM8903 audio codec for handheld consumer electronics.
Power-management IC integrates seven programmable regulators 6/10/2008
Summit Microelectronics’ new SMB119 power-management IC provides all the power rails needed for a modern handheld product.60V output buck, boost, or buck-boost LED controller 6/10/2008
Linear Technology Corp’s new LT3755 LED controller has a 4.5 to 40V input-voltage range.8-bit I2C bus expander has low standby current 6/9/2008
Catalyst Semiconductor has developed an 8-bit I/O expander that connects to a system through an I2C serial bus.In-Depth
Periodic steady-state and small-signal analyses of switching regulators 7/18/2008
Using analysis tools that quickly solve for steady-state conditions will work with PWM switching regulators.Designing a short-range RF link into a consumer-electronics product 7/8/2008
Case study: Learn from the pitfalls and heartaches of a design team that started from scratch to integrate short-range RF into an iPod accessory.Use analog switches to multiplex your signals 6/12/2008
Pay careful attention to analog switches and multiplexers, which are critical components of the signal path. Designers should understand the applications and specifications of these important analog parts.The Tesla Roadster: Sporty and electric 5/14/2008
Prying Eyes: A modern electric sports car presents a unique design challenge.Buck-boost converters change with the times 5/1/2008
Buck-boost converters provide voltages both above and below the input voltage. This feature is useful if your design's input voltage changes drastically or if its load voltage varies.Experts
“Muxing” around with delta-sigma converters 7/10/2008
The appropriate delta-sigma-converter class for multiplexed applications performs the conversion task with a zero-cycle-latency characteristic.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.Analog filter eases delta-sigma-converter design 6/12/2008
With this “easy-to-design” circuit, you can tackle the major noise contributors around the delta-sigma modulator’s sampling frequency.Fear of feature-itis 6/12/2008
Maybe teenagers like these little gizmos with a zillion functions, but I need a tool, not a toy.Honest energy, part two: Readers respond on low-power-factor loads 5/29/2008
Reader response to the last installment of Analog Domain has been both strong and informative—so much so that I’d like to share some of the feedback with you.DesignIdeas
