Overview

Features and Benefits

  • High performance, z-axis 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
  • Z-axis offset adjust
  • Low quiescent current draw
  • High linearity performance
  • Qualified for automotive applications
  • −40°C to +105°C temperature range

Product Details

The ADXL701 device is a high precision, single z-axis accelerometer designed for vehicle rollover detection and other high performance applications. The ADXL701 provides offset stability to better than ±500 mg and sensitivity stability to better than 5% across the entire temperature range. The ADXL701 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 ADXL701 is available in an SOIC package with an inverted paddle for improved EMI/RFI robustness. The ADXL701 operates at nominal power supplies of 3.3 V and 5 V, and is specified to operate across the full automotive temperature range of −40°C to +105°C.

Applications
  • Vehicle rollover detection
  • 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.

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.

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