Datasheet > ADXL78

ADXL78

更新时间： 2024-09-15 03:17:55

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
12页	191K
描述
Single-Axis, High-g, iMEMS Accelerometers

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ADXL78 数据手册

Single-Axis, High-g,

MEMS^®Accelerometers

ADXL78

FEATURES

GENERAL DESCRIPTION

Complete acceleration measurement system on a

single monolithic IC

Available in 35 g, 50 g, or 70 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

The ADXL78 is a low power, complete single-axis accelerometer

with signal conditioned voltage outputs that are on a single

monolithic IC. This product measures acceleration with a full-

scale range of ±±3 g, ±35 g, or ±75 g (minimum). It can also

measure both dynamic acceleration (vibration) and static

acceleration (gravity).

The ADXL78 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-

Output ratiometric to supply

Sensitive axes in the plane of the chip

High linearity (0.2% of full scale)

Frequency response down to dc

effective solution useful for a wide variety of other applications.

Low noise

The ADXL78 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.

Low power consumption (1.3 mA)

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

The ADXL78 is available in a 3 mm × 3 mm × 2 mm,

8-terminal ceramic LCC package.

APPLICATIONS

Vibration monitoring and control

Vehicle collision sensing

Shock detection

FUNCTIONAL BLOCK DIAGRAM

ADXL78

TIMING

GENERATOR

DD2

400Hz

BESSEL

FILTER

DIFFERENTIAL

DEMOD

AMP

EXC

OUT

SENSOR

SELF-TEST

Figure 1.

Rev. A

Information furnished by Analog Devices is believed to be accurate and reliable.

However, no responsibility is assumed by Analog Devices for its use, nor for any

infringements of patents or other rights of third parties that may result from its use.

Specifications subject to change without notice. No license is granted by implication

or otherwise under any patent or patent rights of Analog Devices. Trademarks and

registered trademarks are the property of their respective owners.

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.

Tel: 781.329.4700

Fax: 781.461.3113

www.analog.com

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