STMicroelectronics Announces Miniature Motion Sensor to Enhance Comfort and Measurement Accuracy in Medical Wearables and Implantable Devices
STMicroelectronics has introduced the MIS2DU12, a MEMS accelerometer designed for medical wearable and implantable devices, featuring ultra-low power consumption, integrated signal processing, and a compact size. The sensor enables extended battery life for implants like pacemakers and improves the wearability and accuracy of patch-type sensors for monitoring vital parameters.
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- 📰 Published: March 28, 2026 at 02:55
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STMicroelectronics (NYSE: STM, hereafter 'ST') has announced the 'MIS2DU12', a MEMS accelerometer that combines ultra-low power consumption, signal processing capabilities, and an ultra-compact size, making it ideal for medical wearable and implantable devices.
Manufactured using biocompatible materials and processes, the MIS2DU12 features current consumption of just 20nA in power-down mode and less than 1µA in active mode, enabling long operating life in implantable devices such as heart monitors and pacemakers. With a thickness of only 0.74mm and a footprint of 2 x 2mm, it also allows for thinner, lighter, and more comfortable patch-type sensors.
For patch-type sensors such as blood glucose monitors and other vital parameter sensors, the MIS2DU12's sensor fusion maintains high accuracy even under macroscopic movement and ambient environmental stress. Consequently, these applications benefit from high sensitivity to minute motions and high power efficiency. It includes a dedicated built-in motion processing engine, capable of detecting free-fall, wake-up, single/double-tap, and active/inactive status, as well as 6-axis/4-axis orientation detection. It also features a self-test function and a temperature sensor.
Integrating motion processing circuitry for event detection and wake-up, the MIS2DU12 features an anti-aliasing filter to maximize output data quality. By removing vibration sources from the out-of-band frequency, this filter reduces the load on the host application processor and decreases total system power consumption. The sensor's current consumption is held to just 0.47µA in ultra-low-power active mode at a 1.6Hz output data rate, and 5.6µA when operating in normal mode with the anti-aliasing filter enabled.
The MIS2DU12 features a selectable full scale of ±2g / ±4g / ±8g / ±16g, an output data rate from 1.6Hz to 800Hz, and a wide operating temperature range from -40°C to +85°C. It integrates a 128-level FIFO buffer, providing large data storage and superior flexibility, contributing to lower system power consumption.
The 'STEVAL-MKI255A' adapter board is also available to quickly begin evaluation. This evaluation board, equipped with the MIS2DU12 sensor, features a standard DIL24 pin configuration, allowing it to be used in conjunction with the 'STEVAL-MKI109D' evaluation board. This evaluation board is equipped with a high-performance 32-bit microcontroller and can utilize ST's 'MEMS Studio' GUI.
The MIS2DU12 is supplied in a plastic LGA package (2.0 x 2.0 x 0.74mm) and is scheduled to be available by the end of the first half of 2026. The unit price is approximately $9 for 1,000 units. The 'STEVAL-MKI109D' evaluation board is also available.
For more information, please visit the website.
The new medical motion sensor from ST was showcased at Embedded World 2026 held in Nuremberg, Germany (March 10–12, Hall 4A, Stand 148).
Manufactured using biocompatible materials and processes, the MIS2DU12 features current consumption of just 20nA in power-down mode and less than 1µA in active mode, enabling long operating life in implantable devices such as heart monitors and pacemakers. With a thickness of only 0.74mm and a footprint of 2 x 2mm, it also allows for thinner, lighter, and more comfortable patch-type sensors.
For patch-type sensors such as blood glucose monitors and other vital parameter sensors, the MIS2DU12's sensor fusion maintains high accuracy even under macroscopic movement and ambient environmental stress. Consequently, these applications benefit from high sensitivity to minute motions and high power efficiency. It includes a dedicated built-in motion processing engine, capable of detecting free-fall, wake-up, single/double-tap, and active/inactive status, as well as 6-axis/4-axis orientation detection. It also features a self-test function and a temperature sensor.
Integrating motion processing circuitry for event detection and wake-up, the MIS2DU12 features an anti-aliasing filter to maximize output data quality. By removing vibration sources from the out-of-band frequency, this filter reduces the load on the host application processor and decreases total system power consumption. The sensor's current consumption is held to just 0.47µA in ultra-low-power active mode at a 1.6Hz output data rate, and 5.6µA when operating in normal mode with the anti-aliasing filter enabled.
The MIS2DU12 features a selectable full scale of ±2g / ±4g / ±8g / ±16g, an output data rate from 1.6Hz to 800Hz, and a wide operating temperature range from -40°C to +85°C. It integrates a 128-level FIFO buffer, providing large data storage and superior flexibility, contributing to lower system power consumption.
The 'STEVAL-MKI255A' adapter board is also available to quickly begin evaluation. This evaluation board, equipped with the MIS2DU12 sensor, features a standard DIL24 pin configuration, allowing it to be used in conjunction with the 'STEVAL-MKI109D' evaluation board. This evaluation board is equipped with a high-performance 32-bit microcontroller and can utilize ST's 'MEMS Studio' GUI.
The MIS2DU12 is supplied in a plastic LGA package (2.0 x 2.0 x 0.74mm) and is scheduled to be available by the end of the first half of 2026. The unit price is approximately $9 for 1,000 units. The 'STEVAL-MKI109D' evaluation board is also available.
For more information, please visit the website.
The new medical motion sensor from ST was showcased at Embedded World 2026 held in Nuremberg, Germany (March 10–12, Hall 4A, Stand 148).