LIS2HH12TR Sensors, Transducers

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An accelerometer measures acceleration forces. These forces may be static, like the continuous force of gravity or they could be dynamic, caused by moving or vibrating the accelerometer. The LIS2HH12TR is an example of a motion sensor - an accelerometer that measures dynamic acceleration forces, with a full scale range of ±2, ±4, ±8 and ±16 g and a sampling rate of up to 12.5 KHz. It is suitable for low-power applications such as consumer electronics, wearable devices, etc.

This latest LIS2HH12TR accelerometer boasts a suite of features including a high resolution (16-bit) analog to digital converter, embedded temperature sensor, digital output, built-in filtering, FIFO memory, motion detection algorithm engine, I2C/SPI interface, and START/INT pin for low-power mode. It has a choice of two package types – a tiny 3x3x0.9mm LGA package or a 1.6x2.2x1.3mm UDFN package, making it suitable for the most space-restricted applications. It also has a high shock survival capability of 2000g.

The main applications for LIS2HH12TR includefootwear and smart clothing, gaming peripherals, tablets and smartphones, activity-based wellness management, location and gesture tracking, robotics, and sports and fitness equipment.

The working principle of the LIS2HH12TR is straightforward. The inertial probes inside, which are driven by the acceleration, resonate due to the vibrations received. This vibration creates a vector-sum of the accelerations which acts on the piezoelectric silicon monolith, generating an alternating electrical charge proportional to the acceleration. This electrical signal is then conditioned and converted by the integrated analog to digital converter to allow it to be low-pass filtered, processed, and used to generate motion features.

The LIS2HH12TR has a wide operating temperature range of -40°C to +85°C and extended life. It is also capable of measuring ultra low frequencies, making it suitable for low frequency vibration monitoring applications, including fatigue testing. It includes a built-in power-on reset (POR) circuit and readout of the acceleration threshold, making it suitable for a number of motion detection and movement alarm applications.

In summary, the LIS2HH12TR is a high-performance, low-power motion sensor - an accelerometer - suitable for a variety of applications such as consumer electronics, wearables, sports and fitness equipment, gaming peripherals, and robotics. It has a choice of two package types and a wide operating temperature range, making it suitable for a wide range of applications. Additionally, its extended life and accuracy make it ideal for low frequency vibration monitoring and motion detection applications.

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