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Isolation Amplifiers Offer Short Circuit, Overload Detection

Wed, 01/14/2009 - 4:46am

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Avago ACPL-785JBased on optical insulation technology and sigma-delta modulation, Avago Technologies' ACPL-785J Series isolation amplifiers integrate short circuit and overload detection. The 10.3-mm × 10.2-mm × 3.5-mm SO-16-packaged components allow direct measurement of motor phase currents in power inverters. The devices demonstrate 1-µV/°C offset change vs. temperature, CMR of 25 kV/µs at 1,000-V VCM, and a min. bandwidth of 20 kHz. Applications include inverter current sensing, motor phase and rail current sensing, switching power supply signal isolation, industrial A/D converters, and general-purpose current sensing and monitoring. Pricing is $3.25 in 10,000 quantities.

Avago Technologies
800-235-0312, www.avagotech.com

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