Analog Devices Inc. ADXL189B PSI5-Compatible Satellite Sensor

Analog Devices ADXL189B PSI5-Compatible Satellite Sensor is a g-range configurable, integrated single-axis satellite sensor that is compliant with the PSI5 Version 1.3 specification. The ADXL189B Satellite Sensor has a user-configurable range of ±30g to ±480g. In accordance with the PSI5 specification, the ADXL189B sensor can be configured to transmit data from multiple g-ranges during predefined time slots. The x-axis ADXL189B Satellite Sensor sends 10-bit acceleration data to the control module via a digital 2-wire current loop interface bus. Designers can configure the ADXL189B Satellite Sensor to include a 1-bit parity check or a 3-bit cyclic redundancy check (CRC). The ADXL189B Satellite Sensor is specified to operate over the full -40°C to +125°C automotive temperature range and provides cost-efficient solutions for front and side impact airbag satellite sensor applications.

The Analog Devices Inc. ADXL189B PSI5-Compatible Satellite Sensor is available in a 16-lead, narrow-body SOIC package with an exposed pad for enhanced thermal performance.


  • User-configurable sensor range: ±30g, ±60g, ±120g, ±240g, ±480g
  • Compliant with PSI5 Communication Protocol Version 1.3
    • Asynchronous operation: PSI5-A10P-250[228]/1L
    • Synchronous operation: PSI5-P10P-500/3L and others
    • Daisy-chain operation with bidirectional communication
  • 10-bit sensor data
  • 0.25μs data interpolation routine
  • User-selectable, continuous auto-zero operation
  • Electromechanical sensor self-test
  • High resistance to EMI/RFI/BCI
  • 4.5V to 16.5V operation
  • Electronic serial number
  • Qualified for automotive applications


  • Front impact crash sensing
  • Side impact crash sensing
  • Shock and vibration detection
  • Pedestrian collision sensing

Functional Block Diagram

Analog Devices Inc. ADXL189B PSI5-Compatible Satellite Sensor
Published: 2018-01-15 | Updated: 2022-11-10