ADXL78:  Single-Axis, High-g, iMEMS® Accelerometers

The ADXL78 is a small package (5 mm x 5 mm x 2 mm ceramic LCC), low power (1.3 mA current at 5V), single axis high-g iMEMS® accelerometer designed to sense shock and vibration at g-ranges of ...More

ADXL78:  Single-Axis, High-g, iMEMS® Accelerometers

Product Description

The ADXL78 is a small package (5 mm x 5 mm x 2 mm ceramic LCC), low power (1.3 mA current at 5V), single axis high-g iMEMS® accelerometer designed to sense shock and vibration at g-ranges of ±35g, ±50g, or ±70g. Three models are available and include AD22279-A-R2 (±35g), AD22280-R2 (±50g), and AD22281-R2 (±70g). These products are used in a variety of crash/impact detection applications that 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
    • Available ±35g, ±50g, or ±70g output full-scale ranges
    • Full differential sensor and 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
    • Low power consumption (1.3 mA)
    • 400 Hz, 2-pole Bessel filter

    Diagrams

    ADXL78 Diagram
    Functional Block Diagram for ADXL78

    Specifications

    # of Axes 1
    Range +/- 70g
    Sensitivity 27mV/g
    Sensitivity Accuracy (%) ±5n/a
    Output Type Analog
    TypicalBand Width (kHz) 0.4kHz
    Voltage Supply (V) 4.75 to 5.25
    Supply Current (max) 1.3mA
    Temp Range (°C) -40 to 105-
    Package E-8

    Explore Other Products

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    ADIS16209 - High Accuracy, Dual-Axis Digital Inclinometer & Accelerometer

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    For detailed drawings and chemical composition please consult our  Package Site

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    Temperature Range
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    • Commercial: 0 to +70 degrees Celsius
    • Military : -55 to +125 degrees Celsius
    • Industrial: Temperature ranges may vary by model. Please consult the datasheet for more information.
    • Automotive: -40 to +125 degrees Celsius
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    Due to environmental concerns, ADI offers many of our products in lead-free versions. For more information about lead-free parts, please consult our Pb (Lead) free information page.

    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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