GENERAL DESCRIPTION

The ADXL180 iMEMS® accelerometer is a configurable, single axis, integrated satellite sensor that enables low cost solutions for front and side impact airbag applications. Acceleration data is sent to the control module via a digital 2-wire current loop interface bus. The communication protocol is programmable for compatibility with various automotive interface bus standards.

FEATURES

Wide sensor range: 50 g to 500 g

Adjustable filter bandwidth: 100 Hz to 800 Hz

Configurable communication protocol

  2-wire, current mode bus interface

Selectable sensor data resolution: 8 bit or 10 bit

Continuous auto-zero

Fully differential sensor and interface circuitry

  High resistance to EMI/RFI

Sensor self-test

5.0 V to 14.5 V operation

8 bits of user-defined OTP memory

32-bit electronic serial number

Dual device per bus option

APPLICATIONS

  Crash sensing