STMicroelectronics Announces Compact Motion Sensor to Improve Comfort and Measurement Accuracy for Medical Wearables and Implantable Devices
STMicroelectronics has introduced the MIS2DU12, an ultra-low-power MEMS accelerometer designed for medical wearable and implantable devices. Featuring biocompatible materials and a compact 2x2mm footprint, it integrates advanced motion processing to enhance measurement precision and battery life.
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- 📰 Published: March 30, 2026 at 05:11
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.
Produced using biocompatible materials and manufacturing processes, the MIS2DU12 features a current consumption of just 20nA in power-down mode and less than 1µA in active mode, enabling a long operational lifespan for implantable devices such as cardiac monitors and pacemakers. With a thickness of only 0.74mm and a footprint of 2 x 2mm, it also allows for ultra-thin, lightweight patch-type sensors and improved wearing comfort.
In patch sensors such as blood glucose monitors and other biometric parameter sensors, the MIS2DU12’s sensor fusion maintains high accuracy even under macroscopic movement or environmental stress. Consequently, these applications benefit from high sensitivity to minute motions and superior power efficiency. It features a built-in dedicated motion processing engine capable of detecting free-fall, wake-up, single/double taps, and active/inactive states, alongside 6-axis and 4-axis orientation detection. It also includes a self-test function and a temperature sensor.
Integrating motion processing circuitry for event detection and wake-up, the MIS2DU12 includes an anti-aliasing filter to maximize output data quality. By removing vibration sources outside the target band, this filter reduces the load on the host application processor and decreases overall system power consumption. The sensor's current consumption is as low as 0.47µA in ultra-low-power active mode at a 1.6Hz output data rate, and is kept to 5.6µA even during normal mode operation with the anti-aliasing filter enabled.
The MIS2DU12 offers a selectable full-scale range of ±2g, ±4g, ±8g, or ±16g, an output data rate of 1.6Hz to 800Hz, and a wide operating temperature range of -40°C to +85°C. It integrates a 128-level FIFO buffer, providing large data storage and excellent flexibility, which contributes to reducing system power consumption.
The STEVAL-MKI255A adapter board is available to facilitate rapid evaluation. Equipped with the MIS2DU12 sensor, this evaluation board features a standard DIL24 pin layout, allowing it to be used in combination with the STEVAL-MKI109D evaluation board. This evaluation board includes a high-performance 32-bit microcontroller and can be used with ST’s "MEMS Studio" GUI...
Produced using biocompatible materials and manufacturing processes, the MIS2DU12 features a current consumption of just 20nA in power-down mode and less than 1µA in active mode, enabling a long operational lifespan for implantable devices such as cardiac monitors and pacemakers. With a thickness of only 0.74mm and a footprint of 2 x 2mm, it also allows for ultra-thin, lightweight patch-type sensors and improved wearing comfort.
In patch sensors such as blood glucose monitors and other biometric parameter sensors, the MIS2DU12’s sensor fusion maintains high accuracy even under macroscopic movement or environmental stress. Consequently, these applications benefit from high sensitivity to minute motions and superior power efficiency. It features a built-in dedicated motion processing engine capable of detecting free-fall, wake-up, single/double taps, and active/inactive states, alongside 6-axis and 4-axis orientation detection. It also includes a self-test function and a temperature sensor.
Integrating motion processing circuitry for event detection and wake-up, the MIS2DU12 includes an anti-aliasing filter to maximize output data quality. By removing vibration sources outside the target band, this filter reduces the load on the host application processor and decreases overall system power consumption. The sensor's current consumption is as low as 0.47µA in ultra-low-power active mode at a 1.6Hz output data rate, and is kept to 5.6µA even during normal mode operation with the anti-aliasing filter enabled.
The MIS2DU12 offers a selectable full-scale range of ±2g, ±4g, ±8g, or ±16g, an output data rate of 1.6Hz to 800Hz, and a wide operating temperature range of -40°C to +85°C. It integrates a 128-level FIFO buffer, providing large data storage and excellent flexibility, which contributes to reducing system power consumption.
The STEVAL-MKI255A adapter board is available to facilitate rapid evaluation. Equipped with the MIS2DU12 sensor, this evaluation board features a standard DIL24 pin layout, allowing it to be used in combination with the STEVAL-MKI109D evaluation board. This evaluation board includes a high-performance 32-bit microcontroller and can be used with ST’s "MEMS Studio" GUI...