MIS2DHTR

MIS2DH MEMS digital output motion sensor: ultra-low-power high-performance 3-axis accelerometer Datasheet - production data Description The MIS2DH is an ultra-low-power high- performance three-axis linear accelerometer with 2 digital I C/SPI serial interface standard output. LGA-12 (2.0x2.0x1 mm) The MIS2DH has user-selectable full scales of 2g/4g/8g/16g and is capable of measuring accelerations with output data rates from 1 Hz to Features 5.3 kHz. Wide supply voltage, 1.71 V to 3.6 V The MIS2DH is a device that has been conceived for medical and healthcare applications whenever Independent IOs supply (1.8 V) and supply the sensor itself is not used as a life-sustaining voltage compatible component. Ultra-low power consumption down to 2 A The device may be configured to generate 2g/4g/8g/16g selectable full scales interrupt signals by two independent inertial 2 I C/SPI digital output interface wake-up/free-fall events as well as by the position of the device itself. 3 operating modes: low-power, normal, high- resolution mode The self-test capability allows the user to check 2 independent programmable interrupt the functionality of the sensor in the final generators for free-fall and motion detection application. 6D/4D orientation detection The MIS2DH is available in a small thin plastic land grid array package (LGA) and is guaranteed Motion detection & free-fall detection to operate over an extended temperature range Sleep-to-wake and return-to-sleep functions from -40 C to +85 C. Embedded FIFO Embedded self-test Table 1. Device summary Embedded temperature sensor Order Temperature Package Packaging codes range C ECOPACK , RoHS and Green compliant Tape and MIS2DHTR -40 to +85 LGA-12 reel Applications Activity monitoring and posture detection in medical and healthcare applications, including body-implantable products Remote patient monitoring and man-down alerts Diagnostic and treatment positioning equipment General motion-activated functions in the medical domain September 2015 DocID027506 Rev 2 1/49 This is information on a product in full production. www.st.comContents MIS2DH Contents 1 Block diagram and pin description . 8 1.1 Block diagram . 8 1.2 Pin description 8 2 Mechanical and electrical specifications . 10 2.1 Mechanical characteristics 10 2.2 Temperature sensor characteristics . 11 2.3 Electrical characteristics 12 2.4 Communication interface characteristics . 13 2.4.1 SPI - serial peripheral interface . 13 2 2.4.2 I C - inter-IC control interface 14 2.5 Absolute maximum ratings 15 2.6 Terminology and functionality 16 Terminology 16 2.6.1 Sensitivity 16 2.6.2 Zero-g level 16 Functionality 16 2.6.3 High-resolution, normal mode, low-power mode 16 2.6.4 Self-test . 17 2.6.5 6D / 4D orientation detection . 17 2.6.6 Sleep-to-wake and Return-to-sleep . 18 2.7 Sensing element 18 2.8 IC interface 18 2.9 Factory calibration 19 2.10 FIFO . 19 2.11 Temperature sensor . 19 3 Application hints . 20 3.1 Soldering information 20 4 Digital main blocks . 21 4.1 FIFO . 21 4.1.1 Bypass mode . 21 2/49 DocID027506 Rev 2