Datasheet > AD22302

AD22302

更新时间： 2024-11-11 21:14:31

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
5页	333K
描述
Small, Low Power, Dual Axis High-g iMEMS® Accelerometer With Analog Output

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中文翻译

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AD22302 数据手册

3.3V Single and Dual Axis



Automotive iMEMS Accelerometers

AD22300, AD22301, AD22302

FEATURES

• Complete Acceleration Measurement System on a Single Monolithic IC

• ±35g, ±70g and ±70g/±35g Ranges Available

• Smallest Available Package Footprint For Automotive Safety Applications

• 8 pin Leadless Chip Carrier

• 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 Axes in the Plane of the Chip

• High Linearity (0.2% of Full-scale)

• Frequency Response Down To DC

• Supply Voltage (3.3V)

• Low-Power Consumption (1.3 mA single and dual axis)

• Tight Sensitivity Tolerance and Zero g Offset capability

• Higher Output Drive Current

• Largest available pre-filter clipping headroom

• 400 Hz, 2 pole Bessel Filter

GENERAL DESCRIPTION

The AD22300, AD22301, and AD22302 are derivative products of the fourth generation ADXL78 family surface



micromachined iMEMS accelerometers from Analog Devices with enhanced performance and lower cost. Designed for use

in airbag applications, these products also provide complete cost-effective solutions useful for a wide variety of other

applications.

The AD22300 and AD22301 are single-axis accelerometers with g-ranges of ±37g or ±70g. The AD22302 is a monolithic

two-axis (XY) version with the sensor axes orthogonal (90°) to each other and in the plane of the chip. The AD22302 X-axis

has a g-range of ±70g and its Y-axis has a g-range of ±37g. It can be used for sensing crashes in the front or side of the

vehicle and to determine the angle of impact.

The AD22300, AD22301, and AD22302 are 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.

AD22302

Vdd

AD22300/1

400Hz

Bessel

Filter

X_OUT

Differential

Sensor

Demod

Amp

Exc

Vdd2

Timing

Generator

Vdd

Vdd2

Vdd3

Timing

Generator

OUT

400Hz

Bessel

Filter

Differential

Sensor

Demod

Amp

Exc

400Hz

Bessel

Filter

Differential

Y_OUT

Demod

Amp

Sensor

Self Test

http://www.analog.com/iMEMS

All minimum and maximum specifications are guaranteed; typical values are not guaranteed nor tested. Product characteristics and specifications are subject to change

without notice. Analog Devices assumes no obligation regarding future manufacturing unless otherwise agreed to in writing. Patents pending. Rev. 03

12 3 4 5

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