LIS2L02AS4-TR Sensors, Transducers

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The LIS2L02AS4-TR is an exceptionally low-power two-axis accelerometer from STMicroelectronics. This accelerometer is specifically designed to measure two-axis linear motion for consumer, industrial, and automotive applications. It features STMicroelectronics\' innovative ultra-low-power “Always-On” technology, which allows it to monitor linear motion dynamics while consuming ultra-low power.

The LIS2L02AS4-TR is among STMicroelectronics’ Motion MEMS family of motion sensing products and is classified as an Accelerometer. It is one of the many 2-axis accelerometers in STMicroelectronics’ support portfolio.

The LIS2L02AS4-TR was designed to detect motion signals both in dynamic and static environments. It can detect motion at full scale of ±16 g with continuous wake and Sleep modes to reduce the power consumption of the device. The LIS2L02AS4-TR is integrated with a temperature sensor to measure and manage the thermal profiles of the system.

The accelerometer utilizes a micro-machined inertial measurement unit (IMU), which is composed of a ceramic mass spring system and is isolated from the environment by MEMS technology. The silicon-based MEMS technology acts as a suspension support, enabling the motion-activated ceramic mass to sense its surrounding inertial forces. The LIS2L02AS4-TR is also equipped with a built-in signal conditioning module. The signal processing incorporates a 4th order low-pass filter, and a band-pass filter for gravity vector extraction, as well as a ±12-bit digital-to-analog converter for outputs.

Applications for the LIS2L02AS4-TR accelerometer include mobile device motion control, gaming controllers, automotive safety and comfort features, athletic performance sensing, and portable medical sensors. Consumers might use the accelerometer to add motion based features to their products, while maintaining low power consumption. In the automotive industry, the device can be used to predict hazardous driving conditions, or enable driving safety features such as lane keeping assistance.

The LIS2L02AS4-TR accelerometer integrates ultra-low power technology and advanced signal processing to enable motion sensing capabilities while consuming a minimal amount of energy. Its ultra-low power consumption allows it to remain constantly powered on for low-power applications, and the signal conditioning module and temperature sensor enhance accuracy and reliability of the acceleration measurements.

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