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12bit sensor improves SNR, reduces signal bandwidth

Posted: 23 Aug 2006     Print Version  Bookmark and Share

Keywords:IXYS  Clare Micronix  MX868  Digital Output Magnetic Flux Sensor 

IXYS Corp. has announced that its Clare Micronix division has developed the MX868, a new 12bit Digital Output Magnetic Flux Sensor. The company said this sensor is a complete sampled data subsystem that includes a unique adjustable digital filter that improves signal to noise performance while also reducing signal bandwidth.

The device is powered from a 4.5-5.5V supply and converts a magnetic flux intensity of ±500 gauss full scale into a 12bit digital output word. It operates as a slave on a standard serial interface bus and is compatible with daisy chain expansion in a multiple device serial bus configuration. The sensor can be mounted onto a PCB or incorporated into a magnetic assembly and then calibrated in-system through the serial interface.

This IC is designed to sense the magnetic field generated in power systems as a result of electrical current, as well as in motor control applications. Designers can use it for sensing electrical current, and thus sense power level, with digital signal output to facilitate digital power control.

"The MX868 takes our hall sensor technology to the next level of system integration. We have combined our sensitive magnetic flux sensor and signal processing technologies to enable precise monitoring of high amperage DC motors," remarked Bob DeCaro, VP and general manager of Clare Micronix. "We are offering application support and information on the versatility of the MX868 that can reduce system costs, by using our IC versus expensive current sensors or other magnetic analogue sensors."




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