Datasheet > MXR7999VW(-P)

MXR7999VW(-P)

更新时间： 2025-04-17 17:01:31

品牌	Logo	应用领域
美新 - MEMSIC		传感器
页数	文件大小	规格书
10页	600K
描述
LCC封装，5.5x5.5x2.7mm，模拟输出，±2 g量程，高可靠性的车规热式二轴加速度传感器

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MXR7999VW(-P) 数据手册

Dual-Axis Accelerometer

with Rationmetric Outputs

Automotive Grade

MXR7999VW

FEATURES

Dual axis accelerometer fabricated on a single CMOS IC

Monolithic design with mixed mode signal processing

Zero-g temperature stability better than ± 150 mg from –40C to

125C

VDA

TEMP

Sensitivity temperature compensation better that ± 8% from

-40C to 125C

+/- 2g dynamic range, 1000mV/g sensitivity

29Hz bandwidth

Control

Reference

Voltage

Internal

Temperature

Sensor

Oscillator

Vref

CLK

TEMP

CLK

On Demand Self Test

Coarse

Gain Adj.

Fine Gain

Adj.

Heater

Control

>50,000 g shock survival rating

4.75V to 5.25V single supply operation

Small surface mount package, 5.5mm x 5.5mm x 2.7mm

XZ mounting

RoHS compliant

AEC-Q100 class 1

Low Pass

Filter

Temp

Zout

A/D

Buf

X axis

Comp.

CLK TEMP

CLK

Coarse

Gain Adj.

Fine Gain

Adj.

VDD

Low Pass

Filter

Temp

Y axis

Xout

A/D

Comp.

AUTOMOTIVE APPLICATIONS

Acceleration

Sensor

CLK

TEMP

CLK

•

Active Suspension Control

Vehicle Stability Control

Roll Over Detection

Electronic Parking Break – Hill Start Assist

VSS

MXR7999VW FUNCTIONAL BLOCK DIAGRAM

GENERAL DESCRIPTION

The design is based on heat convection and requires no

solid proof mass. This eliminates stiction, particle, and

inherent resonant frequency problems associated with

competitive devices and provides shock survivability to

greater than50,000g, leading to significantly lower failure

rates and lower loss due to handling during assembly and at

customer field application.

Due to the standard CMOS structure of the MXR7999VW,

additional circuitry can easily be incorporated into custom

versions for high volume applications. Contact MEMSIC’s

local office for more information.

The MXR7999VW is a low cost, dual axis accelerometer

built on a standard, submicron CMOS process. It measures

acceleration with a full-scale range of -2g to +2g and a

sensitivity of 1000mV/g.

The MXR7999VW provides a g-proportional rationmetric

analog output above/ below the zero-g point at 50% of the

supply voltage.

The typical noise floor is 3.5 mg. The inherent 3dB roll off

of the device is 29Hz providing immunity to and

attenuation of higher frequency vibrations present in

automotive applications.

The MXR7999VW is packaged in a hermetically sealed

LCC surface mount package (5.5 mm x 5.5 mm x 2.7 mm

height), and the package can be used for XZ sensing, its

operation temperature is -40C to +125C. It can measure

both dynamic acceleration (e.g., vibration) and static

acceleration (e.g., gravity).

Information furnished by MEMSIC is believed to be accurate and reliable.

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

infringements of patents or other rights of third parties, which may result from

its use. No license is granted by implication or otherwise under any patent or

patent rights of MEMSIC.

www.MEMSIC.com

MEMSIC MXR7999VW Datasheet Rev B

Page 1 of 11

Formal release date: 02/14/2023

12 3 4 5 6 7...10

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