Description

Nanopower, 3-Axis, 2 g/4 g/8 g Digital Output MEMS Accelerometer Features: 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