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ADXL278

Description
SPECIALTY ANALOG CIRCUIT, CQCC8
Categorysemiconductor    Analog mixed-signal IC   
File Size384KB,12 Pages
ManufacturerADI
Websitehttps://www.analog.com
Download Datasheet Parametric View All

ADXL278 Overview

SPECIALTY ANALOG CIRCUIT, CQCC8

ADXL278 Parametric

Parameter NameAttribute value
Number of functions2
Number of terminals8
Maximum operating temperature105 Cel
Minimum operating temperature-40 Cel
Maximum supply/operating voltage5.25 V
Minimum supply/operating voltage4.75 V
Rated supply voltage5 V
Processing package description5 × 5 MM, 2 MM, ROHS COMPLIANT, Ceramic, LCC-8
stateACTIVE
packaging shapeSQUARE
Package SizeChipCARRIER
surface mountYes
Terminal formNO
Terminal spacing1.27 mm
terminal coatinggold
Terminal locationFour
Packaging MaterialsCeramic, Metal-SEALED COFIRED
Temperature levelINDUSTRIAL
Analog IC other typesANALOG circuit
双½、高g
iMEMS®加速度计
ADXL278
产品特性
在单芯片IC上实现完整的双½加速度测量系统
提供±35
g/±35 g、±50 g/±50 g或±70 g/±35 g满量程输出范围
完全差分传感器和电路,具有出色的抗电磁干扰/射频干扰性½
环保可靠的封装
根据数字½令执行完整的机械与电气自测
输出为电源的比率
敏感½在与芯片平行的平面上
高线性度(满量程的0.2%)
频率响应½至DC
½噪声
½功耗
极小的灵敏度误差和0
g失调误差
目前最大的前½滤波器箝½裕量
400 Hz、2极点贝塞尔滤波器
单电源供电
与锡/铅和无铅焊接工艺兼容
通过½½应用认证
概述
ADXL278是一款½功耗、完整的双½加速度计,以单芯片
IC提供经过信号调理的电压输出。该产品½以(X½/Y½)最
小±35
g/±35 g、±50 g/
±50
g或±70 g/±35 g的满量程范围测量
加速度。ADXL278还可同时测量动态加速度(震动)和静态
加速度(重力)。
ADXL278是ADI的第四代表面微加工iMEMS®加速度计,具
有增强的性½和更½的成本。该产品设计用于前部和侧面
冲击安全气囊应用,它还提供完整的高性价比解决方案,
可用于各类其他应用中。
ADXL278在½½温度范围内具有温度稳定性和精确性,提
供自测功½,通过在单个引脚上½加数字信号即可完全发
挥传感器所有机械和电子元件的½用。
ADXL278提供5 mm × 5 mm × 2 mm、8引脚陶瓷LCC封装。
应用
振动监测和控制
½辆碰撞检测
冲击检测
功½框图
ADXL278
EXC
V
S
V
DD
V
DD2
V
DD3
DIFFERENTIAL
SENSOR
DEMOD
AMP
400Hz
BESSEL
FILTER
X
OUT
TIMING
GENERATOR
EXC
DIFFERENTIAL
SENSOR
DEMOD
AMP
400Hz
BESSEL
FILTER
Y
OUT
SELF-TEST
图1.
Rev. B
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. Speci cations 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.
www.analog.com
Tel: 781.329.4700
Fax: 781.461.3113
©2010 Analog Devices, Inc. All rights reserved.
05365-001

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