3-Axis, ±200 g Digital MEMS Accelerometer

The ADXL375 is a small, thin, 3-axis MEMS accelerometer that provides low power consumption and high resolution measurement up to ±200 g. The digital output data is formatted as 16-bit, twos complement data and is accessible through a SPI (3- or 4-wire) or I2C digital interface.

An integrated memory management system with a 32-level first in, first out (FIFO) buffer can be used to store data to minimize host processor activity and lower overall system power consumption.

Low power modes enable intelligent motion-based power management with threshold sensing and active acceleration measurement at extremely low power dissipation.

The ADXL375 is supplied in a small, thin, 3 mm × 5 mm × 1 mm, 14-lead LGA.

Applications

* Concussion and head trauma detection

* High force event detection

* Low power: as low as 35 µA in measurement mode and 0.1 µA in standby mode at VS = 2.5 V (typical)

* Power consumption scales automatically with bandwidth

* Embedded, 32-level FIFO buffer minimizes processor load

* Bandwidth of up to 1 kHz

Bandwidth selectable via serial command

* Shock event detection

* Activity/inactivity monitoring

* Supply voltage range: 2.0 V to 3.6 V

* I/O voltage range: 1.7 V to VS

* SPI (3- or 4-wire) and I2C digital interfaces

* Wide temperature range: −40°C to +85°C

* 10,000 g shock survival

* Pb free/RoHS compliant

* Small and thin: 3 mm × 5 mm × 1 mm LGA package