ADXL362

Data Sheet ADXL362 Micropower, 3-Axis, ±2 g/±4 g/±8 g Digital Output MEMS Accelerometer FEATURES ► Ultra low power ► Power can be derived from coin cell battery ► 1.8 µA at 100 Hz ODR, 2.0 V supply ► 3.0 µA at 400 Hz ODR, 2.0 V supply ► 270 nA motion activated wake-up mode ► 10 nA standby current ► High resolution: 1 mg/LSB ► Built-in features for system level power savings: ► Adjustable threshold sleep/wake modes for motion activation ► Autonomous interrupt processing, without need for microcon- troller intervention, to allow the rest of the system to be turned off completely ► Deep embedded FIFO minimizes host processor load ► Awake state output enables implementation of standalone, motion activated switch ► Low noise down to 175 µg/√Hz ► Wide supply and I/O voltage ranges: 1.6 V to 3.5 V ► Operates off 1.8 V to 3.3 V rails ► Acceleration sample synchronization via external trigger ► On-chip temperature sensor ► SPI digital interface ► Measurement ranges selectable via SPI command ► Small and thin 3 mm × 3.25 mm × 1.06 mm package APPLICATIONS ► Hearing aids ► Home healthcare devices ► Motion enabled power save switches ► Wireless sensors ► Motion enabled metering devices FUNCTIONAL BLOCK DIAGRAM GENERAL DESCRIPTION The ADXL362 is an ultralow power, 3-axis MEMS accelerometer that consumes less than 2 µA at a 100 Hz output data rate and 270 nA when in motion triggered wake-up mode. Unlike accelerometers that use power duty cycling to achieve low power consumption, the ADXL3...