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AD22285 View Datasheet(PDF) - Analog Devices

Part NameAD22285 ADI
Analog Devices ADI
DescriptionDual-Axis, High-g, iMEMS® Accelerometers
AD22285 Datasheet PDF : 12 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
ADXL278
TABLE OF CONTENTS
Specifications..................................................................................... 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Pin Configuration and Function Descriptions............................. 5
Theory of Operation ........................................................................ 7
Applications....................................................................................... 8
REVISION HISTORY
5/05—Rev. 0 to Rev. A
Power Supply Decoupling ............................................................8
Self-Test ..........................................................................................8
Clock Frequency Supply Response .............................................8
Signal Distortion ...........................................................................8
Outline Dimensions ..........................................................................9
Ordering Guide .............................................................................9
Rev. A | Page 2 of 12
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GENERAL DESCRIPTION
The ADXL278 is a low power, complete, dual-axis accelerometer with signal conditioned voltage outputs that are on a single monolithic IC. This product measures acceleration with a full-scale range of (X-axis/Y-axis) ±35 g/±35 g, ±50 g/±50 g, or ±70 g/±35 g (minimum). The ADXL278 can also measure both dynamic acceleration (vibration) and static acceleration (gravity).
The ADXL278 is the fourth-generation surface micromachined iMEMS® accelerometer from ADI with enhanced performance and lower cost. Designed for use in front and side impact airbag applications, this product also provides a complete cost effective solution useful for a wide variety of other applications.

FEATURES
  Complete dual-axis acceleration measurement system on a single monolithic IC
  Available in ±35 g/±35 g, ±50 g/±50 g, or ±70 g/±35 g 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 axes in the plane of the chip
  High linearity (0.2% of full scale)
  Frequency response down to dc
  Low noise
  Low power consumption
  Tight sensitivity tolerance and 0 g offset capability
  Largest available prefilter clipping headroom
  400 Hz, 2-pole Bessel filter
  Single-supply operation
  Compatible with Sn/Pb and Pb-free solder processes

APPLICATIONS
  Vibration monitoring and control
  Vehicle collision sensing
  Shock detection

 

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