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ADXL195:  Single-axis, High Performance Accelerometer with Dual Spectrum Signal Processing

Product Details

Product Status:Pre-Release

The ADXL195/ADXL295 are dual spectrum accelerometers that measure baseband acceleration in up to two axes (XL-X and XL-Y), as well as high frequency (HF) acceleration energy. Identical, independent X and Y sense structures are implemented to achieve the best possible fail-safe performance.

The XL-X and XL-Y channels output baseband acceleration information with a nominal full-scale range of ±120 g and a bandwidth of 408 Hz. The acceleration data is provided as a 12-bit, twos complement word with a resolution of 62.5 mg/LSB.

HF acceleration within the frequency band of 15.5 kHz to 23 kHz is rectified and filtered to generate an average g (gAVG) energy measurement. The HF channel has a nominal full-scale range of 40 gAVG and a bandwidth of 393 Hz. When combined with the XL-X and XL-Y information, HF acceleration information allows for enhanced vehicle impact detection and discrimination.

The ADXL195/ADXL295 are available in a 16-lead, narrow-body SOIC package with an exposed pad. The ADXL195/ADXL295 can operate at 3.3 V and 5 V and are specified for operation from −40°C to +105°C.

APPLICATIONS
  • Enhanced crash sensing
  • Shock detection

FEATURES and BENEFITS

  • Single-axis (ADXL195) and dual-axis (ADXL295) configurations ±120 g baseband acceleration channel
    -- 12-bit resolution at 62.5 mg/LSB
    -- 512 kHz data interpolation rate
  • 40 gAVG high frequency signal processing channel
    -- 10-bit resolution at 83.3 mg avg/LSB
    -- 128 kHz data interpolation rate
  • Sensor frequency response down to dc
  • On-demand electromechanical self-test
  • On-demand HF signal injection self-test
  • Fully differential circuitry for high resistance to EMI/RFI
  • Independent x- and y-axis sense structures for robust FMEA performance
  • See data sheet for additional features

Functional Block Diagram for ADXL195

Evaluation Kits & Symbols & Footprints

Symbols and Footprints— Analog Devices offers Symbols & Footprints which are compatible with a large set of today’s CAD systems for broader and easier support.

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Price, packaging, availability

ADXL195 Model Options
Model Package Pins Temp.
Range
Packing,
Qty
Price*(100-499) Price*1000 pcs RoHS View PCN/ PDN Check Inventory/
Purchase/Sample
ADXL195WBRDZA-RL Status: Production SOIC 150 MIL W/THERMAL PAD 16 Ind Reel, 2500 - - E  Material Info PCN Contact ADI
Price Table Help

The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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