Geneva, Switzerland STMicroelectronics has added two new accelerometers to its ultra-compact portfolio of devices in 4 x 4 x 1.5-mm LGA packages, with a full-scale selectable range of ±2g or ±6g. TheLIS244ALH two-axis accelerometer and LIS344ALH three-axis device operate at low power with high performance and high resolution in low-voltage and battery-operated systems.
The LIS244ALH and LIS344ALH accelerometers offer a wide operating temperature range from -40° to +85°C, combined with shock survivability up to 10,000g, delivering robust performance when operated in a variety of consumer and ISM environments.
The acccelerometers' analog outputs provide direct measurements to external circuitry, and allow designers to optimize external filtering and analog/digital conversion. Output circuitry is factory calibrated for sensitivity and zero-g level, saving further recalibration when built into the end product, ST said. The devices also include an embedded self-test function that verifies both the MEMS sensor and the embedded electrical interface chip are working correctly, according to guaranteed specifications.
Both devices provide a small, low-profile solution for motion detection in space-constrained applications. These applications include mobile phones, portable media players, digital still or video cameras, and personal navigation devices, enabling features such as freefall detection, smart user interfaces, and intelligent motion-based power management that could put the application in sleep mode depending upon its orientation on a surface. Other applications could include interactive gaming terminals, anti-theft systems, sports equipment, and health-monitoring devices.
The 16-pin LGA package uses ST's ECOPACK RoHS-compliant lead-free technology.
Pricing: $1.60 for the LIS344ALH and $1.30 for the LIS244ALH in high volumes.
Product information: LIS244ALH and LIS344ALH