AIS328DQ Datasheet, PDF (1/43 Pages) STMicroelectronics – High-performance ultra low-power 3-axis accelerometer

AIS328DQ
High-performance ultra low-power 3-axis accelerometer with digital
output for automotive applications
Datasheet — production data
Features
■ Wide supply voltage range: 2.4 V to 3.6 V
■ Low voltage compatible IOs: 1.8 V
■ Ultra low-power mode consumption: down to
10 µA
■ ±2g/±4g/±8g dynamically selectable full-scale
■ SPI / I²C digital output interface
■ 16-bit data output
■ 2 independent programmable interrupt
generators
■ System sleep/wakeup function
■ Extended temperature range: -40 °C to 105 °C
■ Embedded self-test
■ High shock survivability: up to 10000 g
■ ECOPACK^® RoHS and “Green” compliant
■ AEC-Q100 qualification
Applications
■ Telematics and black boxes
■ In-dash car navigation
■ Tilt / inclination measurement
■ Anti-theft devices
■ Intelligent power saving
■ Impact recognition and logging
■ Vibration monitoring and compensation
■ Motion-activated functions
Table 1. Device summary
Order codes
Temperature range [° C]
AIS328DQ
AIS328DQTR
-40 to +105
-40 to +105
QFN 24 (4 x 4 x 1.8 mm³)
Description
The AIS328DQ is an ultra low-power high
performance 3-axis linear accelerometer with a
digital serial interface SPI standard output. An I²C
compatible interface is also available. The device
features ultra low-power operational modes that
allow advanced power saving and smart sleep-to-
wakeup functions. The AIS328DQ has dynamic
user-selectable full-scales of ±2g/±4g/±8g and is
capable of measuring accelerations with output
data rates from 0.5 Hz to 1 kHz. The self-test
capability allows the user to check the functioning
of the sensor in the final application. The device
may be configured to generate an interrupt signal
through inertial wakeup events, or by the position
of the device itself. Thresholds and the timing of
interrupt generators are programmable by the end
user on-the-fly. Available in a small quad flat pack
no-lead package (QFPN) with a 4x4 mm footprint,
the AIS328DQ is able to respond to the trend
towards application miniaturization, and is
guaranteed to operate over a temperature range
from -40 °C to +105 °C.
Package
QFPN 4x4x1.8 24L
QFPN 4x4x1.8 24L
Packaging
Tray
Tape and reel
April 2012
This is information on a product in full production.
Doc ID 18160 Rev 3
1/43
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