Aichi Steel Introduces the AMI603 6-axis Motion Sensor for the Mobile Handset and Tablet Market

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The AMI603 motion sensor features the world’s highest azimuth accuracy, the world’s first magnetic gyro, and high energy efficiency combined in the world's smallest form factor.

The Electromagnetic Products business of Aichi Steel Corp. the leading magnetometer provider introduced the AMI603 high performance 6-axis motion sensor optimized for use in the mobile handset and tablet markets.

The AMI603 is an ultra-small 6-axis motion sensor that integrates a 3-axis magnetic sensor, 3-axis accelerometer, and IC controller into a single chip. It is capable of detecting direction, tilt, and motion.

One of the main characteristics of The AMI603 is that it has an azimuth accuracy error of less than 3 degrees, much more accurate than that of existing products (within 10 degrees.) The fast sampling time of 0.6 milliseconds allows it to measure rotation speed to provide the world’s first 6-axis magnetic gyro function.

The AMI603 is an improvement to The AMI602, 65% smaller than while utilizing 50% less power. The AMI603 high density package meets the specifications for electronic components mounted in mobile handsets. A low power consumption pedometer has also been embedded.

Motion sensors have become standard equipment on mobile handsets with usage increasing rapidly. Aichi developed an ultra-small electronic compass in July 2010 which entered mass production in February 2011. Mobile handsets have been increasingly used with navigation, games, air-mouse, and other functions. The new AMI603 is able to meet the performance requirements for these functions.

Samples will be available in April 2011 for $3 USD each.


  • Size: 3.0mm×3.0mm×1.1mm (world’s smallest)
  • Low power consumption (0.5mA) for improved battery performance
  • High azimuth accuracy (3°) for dynamic control of CG especially in games
  • Fast measurement (0.6m/sec) for static control of CB especially for map rotation
  • Primary customers are mobile handset hardware manufacturers
  • Available in September 2011

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