Wednesday, June 19, 2024

Accelerometer With A Brain For Always-Aware Applications

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The LIS2DU12, LIS2DUX12 and LIS2DUXS12 are smart accelerometers that combine sensing and data processing in a single package.

The AI-enhanced smart accelerometer is equipped with advanced algorithms that enable it to process and interpret the data collected by the sensor.

STMicroelectronics has launched three new accelerometers the LIS2DU12, LIS2DUX12 and LIS2DUXS12 with advanced processing engines built-in to extend sensor autonomy, enabling systems to respond more quickly to external events while lowering power consumption. All three products are equipped with the latest industry-standard I3C interface. The three devices integrate the common digital features for detecting events, as well as an anti-aliasing filter for high accuracy at lower sampling frequencies with performance benefits for accurate gesture detection at negligible power consumption. The smart accelerometers provide context sensing for wearables devices, True Wireless Stereo (TWS) speakers and earbuds, smartphones, hearing aids, game controllers, smart watches, asset trackers, robotic appliances, and IoT devices.

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An AI-enhanced smart accelerometer is a sensor with processing capability that uses both artificial intelligence and sensors to detect and measure acceleration, vibration, and motion. Accelerometers are commonly used in various applications such as smartphones, fitness trackers, and industrial machinery. The AI-enhanced smart accelerometer is equipped with advanced algorithms that enable it to process and interpret the data collected by the sensor. This allows for more accurate and reliable measurement of acceleration, as well as the ability to detect patterns and anomalies in the data.

The LIS2DUX12 and LIS2DUXS12 leverage ST’s third-generation MEMS technology, adding programmable capabilities including a machine-learning core (MLC), advanced finite state machine (FSM), and an enhanced pedometer. On the other hand, the LIS2DU12 is an entry-level accelerometer for less demanding applications. The integrated MLC in the LIS2DUX12 and LIS2DUXS12 enable artificial intelligence (AI) algorithms to perform reliable activity detection and the FSM enhances movement recognition.

The new AI-enabled accelerometer can also find applications in sports and fitness, where it could provide more precise tracking of physical activity, such as running, cycling, or weightlifting, and provide personalized feedback and coaching based on the user’s performance.

• Supply voltage range from 1.62 V to 3.6 V
• Four operating power modes
• Ultra-low power consumption
• High-performance mode with anti-aliasing filter: 10.8 μA
• Low-power mode with anti-aliasing filter: 6.2 μA
• Ultra-low-power mode: 2.7 μA
• Power-down: 0.01 μA
• Low noise down to 220 μg/√Hz
• ±2g/±4g/±8g/±16g programmable full-scale
• ODR from 1.6 Hz to 800 Hz
• Embedded machine learning core
• Programmable finite state machine

STMicroelectronics or ST is a Dutch multinational technology company based out of Plan-les-Ouates near Geneva, Switzerland. It is one of the largest European semiconductor contract manufacturing and design companies. ST is a leading supplier of a wide range of semiconductor products, including microcontrollers, sensors, power management, and analog and mixed-signal ICs. The company serves a diverse range of industries, such as automotive, industrial, personal electronics, and communications.


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