ADXL185BWBRDZUP-RL

Accelerometer Single ±30g/±60g/±120g/±240g/±480g 5V/9V/12V/15V Automotive 16Pin SOIC N EP T/R

Product Details

The ADXL185B z-axis sensor and the ADXL189B x-axis sensor are g range configurable, integrated single-axis satellite sensors, compliant with the PSI5 Version 1.3 specification. The ADXL185B/ADXL189B enable low cost solutions for front and side impact airbag satellite sensor applications. Acceleration data is sent to the control module via a digital 2-wire current loop interface bus.

The sensor _g_ range is configurable to provide full-scale ranges from ±30 g to ±480 _g_. The devices can also be configured to transmit data from multiple g ranges during predefined time slots, in accordance with the PSI5 specification. The devices transmit 10-bit acceleration data to the control module and can be configured to include either a 1-bit parity check or a 3-bit cyclic redundancy check CRC. Each device has a unique electronic serial number.

The ADXL185B/ADXL189B are available in a 16-lead, narrow-body SOIC package with an exposed pad. The ADXL185B/ADXL189B are specified to operate over the full automotive temperature range of −40°C to +125°C.

**APPLICATIONS**

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Front impact crash sensing

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Side impact crash sensing

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Shock and vibration detection

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Pedestrian collision sensing

### Features and Benefits

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User configurable sensor range: ±30 _g_, ±60 _g_, ±120_ g_, ±240 _g_, ±480 _g_

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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

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10-bit sensor data

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0.25 μs data interpolation routine

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User-selectable, continuous auto-zero operation

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Electromechanical sensor self-test

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High resistance to EMI/RFI/BCI

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4.5 V to 16.5 V operation

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Electronic serial number

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Qualified for automotive applications