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MIS2DHTR Datasheet

MEMS digital output motion sensor

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MIS2DHTR pdf
MIS2DH
MEMS digital output motion sensor:
ultra-low-power high-performance 3-axis accelerometer
Datasheet - production data
LGA-12 (2.0x2.0x1 mm)
Features
Wide supply voltage, 1.71 V to 3.6 V
Independent IOs supply (1.8 V) and supply
voltage compatible
Ultra-low power consumption down to 2 μA
 2g/±4g/8g/16g selectable full scales
I2C/SPI digital output interface
3 operating modes: low-power, normal, high-
resolution mode
2 independent programmable interrupt
generators for free-fall and motion detection
6D/4D orientation detection
Motion detection & free-fall detection
“Sleep-to-wake” and “return-to-sleep” functions
Embedded FIFO
Embedded self-test
Embedded temperature sensor
ECOPACK®, RoHS and “Green” compliant
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
Description
The MIS2DH is an ultra-low-power high-
performance three-axis linear accelerometer with
digital I2C/SPI serial interface standard output.
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
5.3 kHz.
The MIS2DH is a device that has been conceived
for medical and healthcare applications whenever
the sensor itself is not used as a life-sustaining
component.
The device may be configured to generate
interrupt signals by two independent inertial
wake-up/free-fall events as well as by the position
of the device itself.
The self-test capability allows the user to check
the functionality of the sensor in the final
application.
The MIS2DH is available in a small thin plastic
land grid array package (LGA) and is guaranteed
to operate over an extended temperature range
from -40 °C to +85 °C.
Table 1. Device summary
Order
codes
Temperature
range [C]
Package
Packaging
MIS2DHTR -40 to +85
LGA-12
Tape and
reel
September 2015
This is information on a product in full production.
DocID027506 Rev 2
1/49
www.st.com


STMicroelectronics Electronic Components Datasheet

MIS2DHTR Datasheet

MEMS digital output motion sensor

No Preview Available !

MIS2DHTR pdf
Contents
Contents
MIS2DH
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
2.4.2
SPI - serial peripheral interface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
I2C - 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


Part Number MIS2DHTR
Description MEMS digital output motion sensor
Maker STMicroelectronics
Total Page 30 Pages
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