Analog Devices Inc. ADXL373 Micropower 3-Axis MEMS Accelerometer is an ultra-low-power ±400g microelectromechanical systems accelerometer that consumes 19μA at a 2560Hz Output Data Rate (ODR). The ADXL373 does not power cycle its front end to achieve its low power operation and therefore does not run the risk of aliasing the sensor's output. In addition to its ultra-low power consumption, the ADXL373 enables impact detection while providing system-level power reduction. The ADXL373 Accelerometer features two additional lower power modes with interrupt-driven, wake-up features for monitoring motion during periods of inactivity. In wake-up mode, acceleration data can be averaged to obtain a low enough output noise to trigger low g thresholds. In instant-on mode, the ADXL373 consumes 1.4μA while continuously monitoring the environment for impacts. When an impact event that exceeds the internally set threshold is detected, the device quickly switches to normal operating mode to record the event.
