ISM303DAC High-performance, low-power, compact 3D accelerometer and 3D magnetometer module Datasheet - production data Description The ISM303DAC is a high-performance, low- power system-in-package featuring a 3D digital linear acceleration sensor and a 3D digital magnetic sensor. The ISM303DAC has user-selectable linear acceleration full scales of 2g/4g/8g/16 g and /* PP is capable of measuring accelerations with output data rates from 1 Hz to 6400 Hz. The device has Features a magnetic field dynamic range of up to 50 gauss with output data rates from10 Hz to 3 magnetic field channels and 3 acceleration 2 150 Hz. The ISM303DAC includes an I C serial channels bus interface that supports standard, fast mode, Up to 50 gauss magnetic dynamic range fast mode plus, and high-speed (100 kHz, 400 kHz, 1 MHz, and 3.4 MHz) and an SPI serial 2/4/8/ 16 g selectable acceleration full standard interface. scales Dynamic switching between high-resolution, The ISM303DAC has an integrated 256-level first- high-frequency and low-power modes in, first-out (FIFO) buffer for the accelerometer data which can be used to limit the intervention of 16-bit data output the host processor. 2 SPI / I C serial interfaces The embedded self-test capability allows the user Analog supply voltage 1.71 V to 1.98 V to check the functioning of the sensor in the final Programmable interrupt generators for free- application. fall, motion and magnetic field detection The system can be configured to generate an Embedded self-test both for the accelerometer interrupt signal for free-fall, motion detection and and magnetometer magnetic field detection. The magnetic and Embedded 256-level FIFO accelerometer blocks can be enabled or put into power-down mode separately. Embedded temperature sensor The ISM303DAC is available in a plastic land grid ECOPACK , RoHS and Green compliant array package (LGA) and is guaranteed to operate over an extended temperature range Applications from -40 C to +85 C. Dual mode anti-tampering in smart meters Table 1. Device summary Antenna pointing Temp. Part number Package Packaging Motion tracking range C Robotics and appliances Tape and ISM303DACTR -40 to +85 LGA-12 reel Positioning and navigation systems Positional and distance sensor October 2017 DocID030988 Rev 2 1/80 This is information on a product in full production. www.st.comContents ISM303DAC Contents 1 Block diagram and pin description 10 1.1 Block diagram 10 1.2 Pin description . 11 2 Module specifications . 13 2.1 Sensor characteristics . 13 2.2 Temperature sensor characteristics . 15 2.3 Electrical characteristics 15 2.4 Communication interface characteristics . 17 2.4.1 SPI - serial peripheral interface . 17 2 2.4.2 I C - inter-IC control interface 18 2.5 Absolute maximum ratings 20 3 Terminology . 21 3.1 Sensitivity . 21 3.1.1 Linear acceleration sensor sensitivity 21 3.1.2 Magnetic sensor sensitivity 21 3.2 Zero-g level . 21 3.3 Zero-gauss level 21 3.4 Magnetic dynamic range . 21 4 Functionality 22 4.1 Magnetometer . 22 4.1.1 Magnetometer power modes . 22 4.1.2 Magnetometer offset cancellation . 24 4.1.3 Magnetometer interrupt . 25 4.1.4 Magnetometer hard-iron compensation . 27 4.1.5 Magnetometer self-test . 27 4.2 Accelerometer . 29 4.2.1 Accelerometer power modes . 29 4.2.2 Accelerometer bandwidth . 31 4.2.3 Accelerometer 6D / 4D orientation detection . 33 4.2.4 Accelerometer activity/inactivity function 33 2/80 DocID030988 Rev 2