ADXL363BCCZ-RL

Micropower 3-Sensor Combination 2V 16Pin LGA T/R

Product Details

The ADXL363 is an ultralow power, three-sensor combination consisting of a 3-axis MEMS accelerometer, a temperature sensor, and an ADC input for synchronous conversion of an external signal. The entire system consumes less than 2 µA at a 100 Hz output data rate and 270 nA when in motion triggered wake-up mode.

The ADXL363 communicates via a serial port interface SPI and always provides 12-bit output resolution for all three sensors.

The ADXL363 accelerometer provides selectable measurement ranges of ±2 _g_, ±4 _g_, and ±8 _g_, with a resolution of 1 mg/LSB on the ±2 g range. Unlike accelerometers that use power duty cycling to achieve low power consumption, the ADXL363 does not alias input signals by undersampling; it samples the full bandwidth of the sensor at all data rates.

The ADXL363 temperature sensor operates with a scale factor of 0.065°C typical. Acceleration and temperature data can be stored in a 512-sample multimode FIFO buffer, allowing up to 13 sec of data to be stored.

In addition to the accelerometer and temperature sensor, the ADXL363 also provides access to an internal ADC for synchronous conversion of an additional analog input.

The ADXL363 operates on a wide 1.6 V to 3.5 V supply range, and can interface, if necessary, to a host operating on a separate, lower supply voltage. The ADXL363 is available in a 3 mm × 3.25 mm × 1.06 mm package.

**Applications**

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Home healthcare devices

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Wireless sensors

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Motion enabled metering devices

### Features and Benefits

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Accelerometer, temperature sensor, and provision for 3rd analog sensor input

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All sensors sampled synchronously

Up to 400 Hz output data rate ODR

Samples can be synchronized to external trigger

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Ultralow power

1.95 µA at 100 Hz ODR, 2.0 V supply, all sensors on

270 nA at 6 Hz motion activated wake-up mode

10 nA standby current

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12-bit resolution for all sensors

Acceleration scale factor down to 1 mg/LSB

Temperature scale factor 0.065°C/LSB

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Built-in features for motion-based system-level power savings

Adjustable threshold sleep/wake modes for motion activation

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Autonomous interrupt processing, without need for microcontroller intervention, to allow the rest of the system to be turned off completely

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Deep embedded FIFO minimizes host processor load

Awake state output enables implementation of standalone, motion activated switch

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See datasheet for additional features