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High Precision, Low-g, Digital Triaxial Accelerometer

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Part Details
  • High performance, triaxial digital output accelerometer
  • ±14.2 g full-scale range at 16-bit resolution (0.434 mg/LSB)
  • 2 kHz output sample rate with optional data FIFOs
  • Programmable filter response
    • 20 Hz, 46 Hz, 92 Hz, 184 Hz
  • Continuous electromechanical self test
    • Additional key-on and on demand self test routines
  • Temperature compensated, high precision zero-g bias and sensitivity performance
  • X-/Y-/Z-axis offset adjust
  • Low quiescent current draw
  • High linearity performance
  • Qualified for automotive applications
  • −40°C to +105°C temperature range
Additional Details
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The ADXL703 device is a high precision, triaxial accelerometer designed for electronic stability control and other high performance applications. A built in temperature compensation routine ensures sensitivity stability to better than ±3% across the entire temperature range. The ADXL703 is designed with selectable −3 dB filter corner frequencies to satisfy a range of applications, and the 2 kHz output data rate allows sufficient oversampling of the acceleration information.

The acceleration data output from the device is a true 16-bit word and is contained in a 32-bit SPI transaction. The SPI interface contains additional fault detection bits and data formatting bits designed to assist high reliability applications. SPI communications are compatible up to 8 MHz. The 16-bit acceleration data-word offers a resolution of 0.434 mg/LSB for the ±14.2 g full-scale range of the device.

The ADXL703 is available in an SOIC package with an inverted paddle for improved EMI/RFI robustness. The ADXL703 operates at both 3.3 V and 5 V, and is specified to operate across the full automotive temperature range of −40°C to +105°C.


  • Vehicle dynamic control (VDC)
  • Electronic stability program (ESP)
  • Electronic chassis control
  • Platform stabilization/leveling
A short-form datasheet for this product is available for download from this web page. For complete documentation and additional support, please contact your local Analog Devices sales office.

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