ST's new LSM303DLM geo-magnetic module extends battery life, boosts accuracy in mobile compassing apps

The LSM303DLM geo-magnetic module from STMicroelectronics is an ultra-low-power device that provides advanced navigation and location-based services in portable consumer applications by integrating high-resolution three-axis sensing of linear and magnetic motion in a 5x5x1 mm package. Its operating power consumption of 360uA represents a 50% reduction over devices currently in production.

The LSM303DLM module provides extremely accurate output across full-scale ranges of ±2g/±4g/±8g (linear acceleration) and from ±1.3 up to ±8Gauss (magnetic field). The device boasts state-of-the-art stability over time and temperature and a 30% increase in magnetic sensing resolution over its predecessor, the LSM303DLH.The module is pin-to-pin and software-compatible with the previous-generation device, so customers can easily ‘hot swap’ and protect their investment in application development.

The integration of high-performance motion and magnetic sensing enables enhanced electronic compassing in mobile phones and other personal electronic devices, including direction finding, map/display orientation, location-based services and pedestrian dead reckoning.

ST’s module couples high-precision sensing with smart embedded features, including 6D orientation detection; two programmable interrupt signals that enable immediate notification of motion detection, free fall, and other conditions; and wake-up/power-down functionality.

ST’s LSM303DLM geo-magnetic module is available now, with unit pricing at $1.95 for volumes in the range of 100,000 pieces. For further information on ST’s complete MEMS portfolio see www.st.com/mems.

Toni McConnel can be reached at Toni@TechRite-Associates.com.