STMicroelectronics Announces Compact Motion Sensor to Improve Comfort and Measurement Accuracy in Medical Wearables and Implantable Devices
ST Micro announces compact motion sensor for medical wearables
📋 Article Processing Timeline
- 📰 Published: March 30, 2026 at 00:27
STMicroelectronics (NYSE: STM) has announced the MIS2DU12, a MEMS accelerometer combining ultra-low power consumption, signal processing capabilities, and an ultra-compact form factor, ideal for medical wearable and implantable devices.
Produced with biocompatible materials and manufacturing processes, the MIS2DU12 features current consumption of just 20nA in power-down mode and under 1µA in active mode, enabling long operating life in implantable devices such as cardiac monitors and pacemakers. At only 0.74mm thin with a 2×2mm footprint, it also enables thinner, lighter patch-type sensors with improved wearing comfort.
For patch-type sensors such as glucose monitors and other biometric parameter sensors, the MIS2DU12's sensor fusion maintains high accuracy even under macroscopic movement and ambient environmental stress. These applications benefit from high sensitivity to micro-movements and high power efficiency. The device integrates a dedicated motion processing engine supporting free-fall detection, wake-up, single/double tap, active/inactive detection, and 6-axis/4-axis orientation detection, along with a self-test function and temperature sensor.
The MIS2DU12 integrates motion processing circuits for event detection and wake-up, and features an anti-aliasing filter to maximize output data quality. By filtering out vibration sources outside the band, it reduces the load on the host application processor and lowers overall system power consumption. Current consumption is just 0.47µA in ultra-low-power active mode at 1.6Hz output data rate, and only 5.6µA in normal mode with the anti-aliasing filter enabled.
The MIS2DU12 offers selectable full-scale ranges of ±2g/±4g/±8g/±16g, output data rates from 1.6Hz to 800Hz, and a wide operating temperature range of -40°C to +85°C. It integrates a 128-level FIFO buffer for large data storage with excellent flexibility, contributing to reduced system power consumption.
An STEVAL-MKI255A adapter board is also available for rapid evaluation. This evaluation board featuring the MIS2DU12 sensor uses a standard DIL24 pin layout and can be used in combination with the STEVAL-MKI109D evaluation board, which is equipped with a high-performance 32-bit microcontroller compatible with ST's MEMS Studio GUI.
Produced with biocompatible materials and manufacturing processes, the MIS2DU12 features current consumption of just 20nA in power-down mode and under 1µA in active mode, enabling long operating life in implantable devices such as cardiac monitors and pacemakers. At only 0.74mm thin with a 2×2mm footprint, it also enables thinner, lighter patch-type sensors with improved wearing comfort.
For patch-type sensors such as glucose monitors and other biometric parameter sensors, the MIS2DU12's sensor fusion maintains high accuracy even under macroscopic movement and ambient environmental stress. These applications benefit from high sensitivity to micro-movements and high power efficiency. The device integrates a dedicated motion processing engine supporting free-fall detection, wake-up, single/double tap, active/inactive detection, and 6-axis/4-axis orientation detection, along with a self-test function and temperature sensor.
The MIS2DU12 integrates motion processing circuits for event detection and wake-up, and features an anti-aliasing filter to maximize output data quality. By filtering out vibration sources outside the band, it reduces the load on the host application processor and lowers overall system power consumption. Current consumption is just 0.47µA in ultra-low-power active mode at 1.6Hz output data rate, and only 5.6µA in normal mode with the anti-aliasing filter enabled.
The MIS2DU12 offers selectable full-scale ranges of ±2g/±4g/±8g/±16g, output data rates from 1.6Hz to 800Hz, and a wide operating temperature range of -40°C to +85°C. It integrates a 128-level FIFO buffer for large data storage with excellent flexibility, contributing to reduced system power consumption.
An STEVAL-MKI255A adapter board is also available for rapid evaluation. This evaluation board featuring the MIS2DU12 sensor uses a standard DIL24 pin layout and can be used in combination with the STEVAL-MKI109D evaluation board, which is equipped with a high-performance 32-bit microcontroller compatible with ST's MEMS Studio GUI.