Datasheet > ADXL700

ADXL700

更新时间： 2024-11-10 14:58:11

品牌	Logo	应用领域
亚德诺 - ADI		/
页数	文件大小	规格书
2页	80K
描述
高精密、低g、数字三轴加速度计

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中文翻译

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数据手册

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ADXL700 数据手册

High Precision, Low-g,

Digital Triaxial Accelerometer

Data Sheet

ADXL700

FEATURES

GENERAL DESCRIPTION

High performance, triaxial digital output accelerometer

14.2 g full-scale range at 16-bit resolution (0.434 mg/LSB)

2 kHz output sample rate with optional data FIFOs

Programmable filter response

The ADXL700 device is a high precision, triaxial accelerometer

designed for electronic stability control and other high perfor-

mance applications. A built in temperature compensation routine

ensures sensitivity stability to better than 3% across the entire

temperature range. The ADXL700 is designed with selectable

−3 dB filter corner frequencies to satisfy a range of applications,

and the 2 kHz output data rate allows sufficient oversampling of

the acceleration information.

20 Hz, 46 Hz, 92 Hz, 184 Hz

Continuous electromechanical self-test

Additional key-on and on demand self-test routines

Temperature compensated, high precision zero-g bias and

sensitivity performance

X-/Y-/Z-axis offset adjust

Low quiescent current draw

High linearity performance

−40°C to +105°C temperature range

Qualified for automotive applications

The acceleration data output from the device is a true 16-bit

word and is contained in a 32-bit SPI transaction. The SPI

interface contains additional fault detection bits and data

formatting bits designed to assist high reliability applications.

SPI communications are compatible up to 8 MHz. The 16-bit

acceleration data-word offers a resolution of 0.434 mg/LSB for

the 14.2 g full-scale range of the device.

APPLICATIONS

Vehicle dynamic control (VDC)

Electronic stability program (ESP)

Electronic chassis control

The ADXL700 is available in an SOIC package with an inverted

paddle for improved EMI/RFI robustness. The ADXL700 operates

at both 3.3 V and 5 V, and is specified to operate across the full

automotive temperature range of −40°C to +105°C.

Platform stabilization/leveling

FUNCTIONAL BLOCK DIAGRAM

IIR FILTER

BYPASS

Σ-Δ

THIRD-ORDER

SINC FILTER

CALIBRATION

FORMAT

MOD

X/Y

AFE

IIR FILTER

BYPASS

Σ-Δ

MOD

THIRD-ORDER

SINC FILTER

SCLK

IIR FILTER

BYPASS

AFE

Σ-Δ

MOD

THIRD-ORDER

SINC FILTER

MOSI

MISO

TEMP

SENSOR

Σ-Δ

MOD

THIRD-ORDER

SINC FILTER

CAL COEFFICIENT

GENERATION

IIR FILTER

CALIBRATION

FORMAT

SENSOR

DRIVERS

SELF

TEST

IOVDD

DVDD

DSP

TIMING GEN

MASTER DSP

STATE MACHINE

CONTROL

REGVDD

AVDD

REGGND

IOGND

VDD

OTP

SERIAL

MONITOR

VDD

REG

CLOCK

ERROR

FLAGS

NUMBER

CONFIG

TRIM

ERROR

HANDLER

POR

ADXL700

COEFFICIENT

REFERENCE

VCM

Figure 1.

For more information about the ADXL700, please contact the Analog Devices, Inc., Customer Interaction Center at

http://www.analog.com/en/content/technical_support_page/fca.html to connect with a technical support specialist.

Rev. Sp0

Document Feedback

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

Technical Support

www.analog.com

中文翻译

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