Micropower, 3-Axis, ±2 g/±4 g/±8 g,Digital Output MEMS AccelerometerADI ConfidentialADXL362-MIFEATURESGENERAL DESCRIPTIONUltralow power The ADXL362-MI is an ultralow power, 3-axis MEMS Power can be derived from coin cell battery accelerometer that consumes less than 2 µA at a 100 Hz 1.8 µA at 100 Hz ODR, 2.0 V supply output data rate (ODR) and 270 nA when in motion triggered 3.0 µA at 400 Hz ODR, 2.0 V supply wake-up mode. Unlike accelerometers that use power duty 270 nA, motion activated, wake-up mode cycling to achieve low power consumption, the ADXL362-MI 10 nA standby supply current, 2.0 V supply does not alias input signals by undersampling; it samples the High resolution, sensitivity at XOUT, YOUT, ZOUT: 1 mg/LSB ful bandwidth of the sensor at al data rates. Built in features for system level power savings The ADXL362-MI always provides 12-bit output resolution; Adjustable threshold sleep/wake modes for motion 8-bit formatted data is also provided for more efficient single- activation byte transfers when a lower resolution is sufficient. Measurement Autonomous interrupt processing, without need for ranges of ±2 g, ±4 g, and ±8 g are available, with a resolution of microcontroller intervention, to allow the rest of the 1 mg/LSB on the ±2 g range. For applications where a noise level system to be turned off completely lower than the normal 550 µg/√Hz of the ADXL362-MI is Deep embedded FIFO minimizes host processor load desired, either of two lower noise modes (down to 175 µg/√Hz Awake state output enables implementation of typical) can be selected at minimal increase in supply current. standalone, motion activated switchLow noise down to 175 µg/√Hz In addition to its ultralow power consumption, the ADXL362-MI Wide operating voltage range: 1.6 V to 3.5 V has many features to enable true system level power reduction. Operates off 1.8 V to 3.3 V batteries It includes a deep multimode output, first in, first out (FIFO), Special, high reliability manufacturing flow a built in micropower temperature sensor, and several activity Acceleration sample synchronization via external trigger detection modes including adjustable threshold sleep and wake-up On-chip temperature sensor operation that can run as low as 270 nA at a 6 Hz (approximate) SPI digital interface measurement rate. A pin output is provided to directly control Measurement ranges selectable via SPI command an external switch when activity is detected, if desired. In addition, Small and thin 3 mm × 3.25 mm × 1.06 mm package the ADXL362-MI has provisions for external control of sampling APPLICATIONS time and/or an external clock. Hearing aids The ADXL362-MI operates on a wide 1.6 V to 3.5 V supply range, Home healthcare devices and can interface, if necessary, to a host operating on a separate, Motion enabled power save switches lower supply voltage. The ADXL362-MI is processed through a Wireless sensors special, high reliability manufacturing flow involving additional Motion enabled metering devices process, test, and quality controls to meet the quality and reliability
requirements of implantable and other Class III medical devices.