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ADXL375 Datasheet, PDF (1/32 Pages) Analog Devices – 3-Axis, 200 g Digital Accelerometer
Data Sheet
FEATURES
Low power: as low as 35 µA in measurement mode and
0.1 µA in standby mode at VS = 2.5 V
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
APPLICATIONS
Concussion and head trauma detection
High force event detection
3-Axis, ±200 g
Digital Accelerometer
ADXL375
GENERAL DESCRIPTION
The ADXL375 is a small, thin, 3-axis 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.
ADXL375
FUNCTIONAL BLOCK DIAGRAM
VS VDD I/O
POWER
MANAGEMENT
3-AXIS
SENSOR
SENSE
ELECTRONICS
ADC
DIGITAL
FILTER
CONTROL
AND
INTERRUPT
LOGIC
INT1
INT2
GND
32-LEVEL
FIFO
Figure 1.
SERIAL I/O
CS
SDA/SDI/SDIO
SDO/ALT
ADDRESS
SCL/SCLK
Rev. 0
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