Analog Devices Inc. ADXL367 MEMS Accelerometer
Analog Devices Inc. ADXL367 MEMS Accelerometer
Analog Devices Inc. ADXL367 MEMS Accelerometer is an ultra-low power, 3-axis microelectromechanical system (MEMS) accelerometer that consumes 0.89µA at 100Hz output data rate and 180nA in motion-triggered wake-up mode. Unlike accelerometers that use power duty cycles to achieve low power consumption, the ADXL367 does not alias the input signal by undersampling, but instead samples the entire bandwidth of the sensor at the full data rate.
The ADI ADXL367 MEMS accelerometer has a constant 14-bit output resolution. At the same time, it also provides 8-bit formatted data for more efficient single-byte transfer when lower resolution is sufficient. 12-bit formatted data is also supported for design compatibility with the ADXL362.
The ADXL367 has many features that enable true system-level power savings. These features include: deep multi-mode output first-in-first-out (FIFO); built-in micropower temperature sensor; internal analog-to-digital converter (ADC) with interrupt capability for additional synchronous conversion of analog inputs; operation at any output data rate, Single and double-click detection requiring only an additional 35nA; state machine to prevent false triggering. In addition, the ADXL367 provides external control of the sample time and an external clock.
The ADXL367 operates over a wide supply voltage range of 1.1V--3.6V and can be connected to a host operating on a separate supply voltage if necessary. The ADXL367 is available in a 2.2mm × 2.3mm × 0.87mm package.
characteristic
Supply voltage range
1.1V-3.6V single-cell battery operation
Internal Power Regulation for High PSRR
High resolution: 0.25mg/LSB
Various system-level power saving features are built in:
Single and double tap detection with only 35nA of additional current
Adjustable threshold sleep and wake modes for motion activation
Autonomous interrupt handling without microcontroller intervention, the rest of the system can be completely shut down
Deep 512-sample embedded FIFO minimizes host processor load
Wake-up status output supports implementation of motion-activated switches
Ultra low power consumption
0.89μA (100Hz ODR, power supply 2.0V)
180nA motion activated wake-up mode
Standby current: 40nA
Noise as low as 170μg/√Hz
Acceleration sampling synchronization via external trigger
On-chip temperature sensor
Internal bipolar antialiasing filter
SPI (4-wire) and I2C digital interface
Small and slim 2.2mm × 2.3mm × 0.87mm package
application
24/7 Sensing
industry
digital healthcare
Prosumer Commodities
hearing aid
Vital Signs Monitoring Equipment
Motion Enable Energy Saving Switch
Motion-enabled metering equipment
A smartwatch that runs on a single battery
smart home
