Sporting an I²C interface and presenting a 12-bit digital output word that is proportional to the strength of the magnetic field that is present, the quiescent output of the A1454 is at mid-scale. It comes in two different factory programmed sensitivity ranges: 2LSB/G and 4LSB/G. Sensitivity temperature coefficient is also factory programmed to support either neodymium or ferrite magnets. The I²C address can either be set by external resistors or programmed via EEPROM, to support up to 127 unique I²C addresses, allowing for multiple ICs on the same bus. It also includes 16 bytes of user programmable EEPROM. The A1454 is priced at $0.85 each/1,000. A datasheet is available at http://www.allegromicro.com/~/media/Files/Datasheets/A1454-Datasheet.ashx?la=en
Allegro MicroSystems
Worcester, MA
508-853-5000
http://www.allegromicro.com
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