ADXL367

Data Sheet ADXL367 Micropower, 3-Axis, ±2 g/±4 g/±8 g Digital Output MEMS Accelerometer FEATURES FUNCTIONAL BLOCK DIAGRAM ► Supply voltage range ► Single-cell battery operation: 1.1 V to 3.6 V ► Internal power supply regulation for high PSRR ► Ultralow power ► 0.89 µA at 100 Hz ODR, 2.0 V supply ► 180 nA motion activated wake-up mode ► 40 nA standby current ► High resolution: 0.25 mg/LSB ► Built-in features for system level power savings ► Single-tap and double-tap detection with only 35 nA of added current ► Adjustable threshold sleep and wake-up modes for motion activation ► Autonomous interrupt processing, without need for microcontroller intervention, to allow the rest of the system to be turned off completely ► Deep 512 sample embedded FIFO minimizes host processor load ► Awake state output enables implementation of motion activated switch ► Low noise to 170 µg/√Hz ► Acceleration sample synchronization via external trigger ► On-chip temperature sensor ► Internal two-pole antialias filter ► SPI (4-wire) and I2C digital interfaces ► Small and thin 2.2 mm × 2.3 mm × 0.87 mm package APPLICATIONS ► 24/7 sensing ► Hearing aids ► Vital signs monitoring devices ► Motion-enabled power save switches ► Motion-enabled metering devices ► Smart watch with single-cell operation ► Smart home Figure 1. GENERAL DESCRIPTION The ADXL367 is an ultralow power, 3-axis microelectromechanical systems (MEMS) accelerometer that consumes only 0.89 µA at a 100 Hz output data rate and 180 nA w...