ADXL278:  Small, Low Power, Dual Axis High-g iMEMS® Accelerometer With Analog Output

The ADXL278 is a small (5 mm x 5 mm x 2 mm ceramic LCC package), low power (2.2 mA current at 5V), dual axis high-g iMEMS® accelerometer designed to sense shock and vibration at g-ranges of ...More

ADXL278:  Small, Low Power, Dual Axis High-g iMEMS® Accelerometer With Analog Output

Product Description

The ADXL278 is a small (5 mm x 5 mm x 2 mm ceramic LCC package), low power (2.2 mA current at 5V), dual axis high-g iMEMS® accelerometer designed to sense shock and vibration at g-ranges of ±35g/±35g, ±50g/±50g, or ±70g/±35g. Three models are available and include AD22284-A-R2 (±35g/±35g), AD22285-R2 (±50g/±50g), and AD22286-R2 (±70g/±35g). These products are used in a variety of crash/impact detection applications which include automotive airbag crash detection systems as well as medical, industrial, and sports equipment.

Applications:

  • Crash or Impact Detection
  • Vibration Control and Monitoring
  • Shock Detection

    • Features

    • Complete Acceleration Measurement System on a Single Monolithic IC
    • ±35g/±35g, ±50g/±50g, and ±70g/±35g Ranges Available
    • Full Differential Sensor & Circuitry for High Resistance to EMI/RFI
    • Environmentally robust packaging
    • Complete Mechanical and Electrical Self-test on Digital Command
    • Output Ratiometric to Supply
    • Sensitive Axis in the Plane of the Chip
    • High Linearity (0.2% of Full-scale)
    • Frequency Response Down To DC
    • Low-Noise (1 mg/rt Hz)
    • Low-Power Consumption (2.2 mA)
    • 400 Hz, 2 pole Bessel Filter

    Diagrams

    ADXL278 Diagram
    Functional Block Diagram for ADXL278

    Specifications

    # of Axes 2
    Range +/- 70g
    Sensitivity 27mV/g
    Sensitivity Accuracy (%) ±5n/a
    Output Type Analog
    Typical Bandwidth (kHz) 0.4kHz
    Voltage Supply (V) 4.75 to 5.25
    Supply Current (max) 2.2mA
    Temp Range (°C) -40 to 105-
    Package E-8

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    *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.
    **Sample availability may be better than production availability. Please enter samples iinto your cart to check sample availability.

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