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.
The ADXL278 is temperature stable and accurate over the automotive temperature range, with a self-test feature that fully exercises all the mechanical and electrical elements of the sensor with a digital signal applied to a single pin.
The ADXL278 is available in a 5 mm × 5 mm × 2 mm, 8-terminal ceramic LCC package.
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·Vibration monitoring and control·Vehicle collision sensing·Shock detection
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·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
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Acceleration (Any Axis, Unpowered)............4,000 g
Acceleration (Any Axis, Powered)............. 4,000 g
VS.......................... −0.3 V to +7.0 V
All Other Pins............(COM − 0.3 V) to (VS + 0.3 V)
Output Short-Circuit Duration (Any Pin to Common) Indefinite
Operating Temperature Range........ −65°C to +150°C
Storage Temperature..............−65°C to +150°C
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