AIS326DQ:Digital output motion sensor for automotive applications low-power high performance 3-axes accelerometer

The AIS326DQ is a three axes digital output accelerometer that includes a sensing element and an IC interface able to take the information from the sensing element and to provide the measured acceleration signals to the external world through an SPI serial interface. I²C compatible interface is also available.

The sensing element, capable of detecting the acceleration, is manufactured using a dedicated process developed by ST to produce inertial sensors and actuators in silicon.

The IC interface instead is manufactured using a CMOS process that allows high level of integration to design a dedicated circuit which is factory trimmed to better match the sensing element characteristics.

The AIS326DQ has a user selectable full scale of ±2 g, ±6 g and it is capable of measuring acceleration over a bandwidth of 640 Hz for all axes. The device bandwidth may be selected accordingly to the application requirements. The self-test capability allows the user to check the functioning of the system.

The device is available in plastic quad flat package no lead surface mount (QFPN) and it is specified over a temperature range extending from -40 °C to +105 °C.

Key Features

  • 3.3 V single supply operation
  • 1.8 V compatible IOs
  • SPI digital output interface
  • 12 bit resolution
  • Interrupt activated by motion
  • Programmable interrupt threshold
  • Embedded self-test
  • High shock survivability
  • ECOPACK® compliant
  • Extended temperature range -40 °C to +105 °C
Product Specifications
DescriptionVersionSize
DS5914: MEMS inertial sensor 3-axis, low g accelerometer with digital output4.2636 KB
Application Notes
DescriptionVersionSize
AN3288: g-Brake Lights: an adaptive rear lighting system based on the AIS326DQ inertial sensor and the STM8AF5168 MCU2.11 MB
Technical Notes & Articles
DescriptionVersionSize
TN0018: Surface mounting guidelines for MEMS sensors in an LGA package5.0218 KB
Design Notes & Tips
DescriptionVersionSize
DT0053: 6-point tumble sensor calibration1.0464 KB
Brochures
DescriptionVersionSize
MEMS and Sensors, Smart solutions for IoT and enhanced user experience1 MB
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityECCN (EU)ECCN (US)Country of Origin
AIS326DQQFPN 28 7x7x1.9Tray--NECEAR99-
AIS326DQTRQFPN 28 7x7x1.9Tape And Reel--NECEAR99-
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
AIS326DQQFPN 28 7x7x1.9AutomotiveEcopack2md_qfpn-wspc-7x7x1.9-wspc-28-wspc-pitch-wspc-0.8_b5nxu39dba1_(ais326dqtr)-wspc-ver2_signed.pdf
md_qfpn-wspc-7x7x1.9-wspc-28-wspc-pitch-wspc-0.8_b5nxu39dba1_(ais326dqtr)-wspc-ver2.xml
AIS326DQTRQFPN 28 7x7x1.9AutomotiveEcopack2md_qfpn-wspc-7x7x1.9-wspc-28-wspc-pitch-wspc-0.8_b5nxu39dba1_(ais326dqtr)-wspc-ver2_signed.pdf
md_qfpn-wspc-7x7x1.9-wspc-28-wspc-pitch-wspc-0.8_b5nxu39dba1_(ais326dqtr)-wspc-ver2.xml
MEMS inertial sensor 3-axis, low g accelerometer with digital output AIS326DQ
circuit_diagram_14956_thumbnail.png AIS326DQ
g-Brake Lights: an adaptive rear lighting system based on the AIS326DQ inertial sensor and the STM8AF5168 MCU A5970D
Surface mounting guidelines for MEMS sensors in an LGA package L3G3200D
6-point tumble sensor calibration AIS2120SX
Surface mounting guidelines for MEMS sensors in an LGA package L3G3200D
md_qfpn-wspc-7x7x1.9-wspc-28-wspc-pitch-wspc-0.8_b5nxu39dba1_(ais326dqtr)-wspc-ver2_signed.pdf AIS326DQ
md_qfpn-wspc-7x7x1.9-wspc-28-wspc-pitch-wspc-0.8_b5nxu39dba1_(ais326dqtr)-wspc-ver2.xml AIS326DQ
AIS326DQ