The ADXL180WCPZA-RL iMEMS® accelerometer is a configurable, singleaxis, integrated satellite sensor that enables low cost solutionsfor front and side impact airbag applications. Acceleration datais sent to the control module via a digital 2-wire current loopinterface bus. The communication protocol is programmable forcompatibility with various automotive interface bus standards.
The sensor g range is configurable to provide full-scale rangesfrom ±50 g to ±500 g. The sensor signal third-order, low-passBessel filter bandwidth is configurable at 100 Hz, 200 Hz,400 Hz, and 800 Hz.
The 10-bit analog-to-digital converter (ADC) allows either 8-bitor 10-bit acceleration data to be transmitted to the control module.Each part has a unique electronic serial number. The device israted for operation from −40°C to +125°C and is available in a5 mm × 5 mm LFCSP package.
Feature
- 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
(Picture: Pinout)
