3-Axis Accelerometer - LIS302ALK - STMicroelectronics

STMicroelectronics announced LIS302ALK, the new ultra-compact low-g linear accelerometers. The small size and low power MEMS (Micro-Electro-Mechanical System) device provides precise acceleration values in three (x, y, z) axes of the dimensions. LIS302ALK low-g accelerometer offers a full-scale output range of +/-2.0g and it is suitable for low-frequency vibration monitoring at very low power consumption.

LIS302ALK Accelerometer Chip

Example of accelerometer sensor applications:

• Gaming and Virtual Reality input devices
• Mobile terminals
• Free-fall detection for data protection
• Appliance and Robotics.
• Antitheft systems and Inertial Navigation

LIS302ALK Accelerometer Block Diagram

Key features and spec of LIS302ALK low-g 3-axes accelerometer

• 3.0V to 3.6V supply voltage
• ~2mW power consumption
• ±2g full-scale
• 3 axes acceleration channels
• Ratiometric output voltage
• Embedded self test
• Power down mode
• 10000g high shock survivability
• Can be operated from 2.16V to 3.6V
• Temperature range: -40°C to +85°C

The LIS302ALK accelerometer  is available in plastic Thin Land Grid Array package (TLGA) and it is manufactured using a CMOS process that allows to design a dedicated circuit which is trimmed to better match the sensing element characteristics. LIS302ALK outputs analog representation of acceleration in x, y, z axes. The sensor is housed in a 5 x 3 x 0.9 mm plastic package, small and compact to be applied is space constrained applications. The accelerometer provides shock survivability up to 10000g/0.1 msec.

LIS302ALK Accelerometer Circuit Example

A self-test capability allows the user to check the functioning of the sensor in the final application without thew need to move or tilt the sensor.

LIS302ALK low-g accelerometer is in sampling now. Volume production scheduled on February 2007. Price: $2.95 (30K unit qty).

Source STMicroelectronics