Designed for polyphase meters, the ADE7880 energy metering IC offers complete harmonic analysis, including magnitude and phase information, and delivers better than 1% accuracy over a dynamic range of 2,000:1 up to the 63rd harmonic. The part is based on the company’s ARTM (adaptive real-time monitoring) harmonic analysis technology, which eliminates the need for custom development of sophisticated digital signal processing and reduces the demands on the system microcontroller.
The part incorporates seven sigma-delta ADCs, a digital integrator, voltage reference and all the signal processing required to perform the total (fundamental and harmonic) active, and apparent energy measurement, rms calculations, as well as fundamental-only active and reactive energy measurement. It is housed in a 40-lead LFCSP package. ($9.47 ea/1,000 prod qty, Nov2011)
By Christina Nickolas
Analog Devices , Wilmington , MA
Sales 800-262-5643
www.analog.com
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