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ADUM1281 PDF预览

ADUM1281

更新时间: 2024-02-03 05:27:10
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
16页 329K
描述
3 kV RMS Dual Channel Digital Isolators

ADUM1281 技术参数

是否无铅: 含铅是否Rohs认证: 符合
生命周期:Active零件包装代码:SOIC
包装说明:SOP, SOP8,.25针数:8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:2.11
Is Samacsys:N接口集成电路类型:INTERFACE CIRCUIT
JESD-30 代码:R-PDSO-G8长度:4.9 mm
功能数量:1端子数量:8
最高工作温度:125 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:SOP
封装等效代码:SOP8,.25封装形状:RECTANGULAR
封装形式:SMALL OUTLINE座面最大高度:1.75 mm
最大供电电压:5.5 V最小供电电压:3.135 V
标称供电电压:3.3 V表面贴装:YES
技术:CMOS温度等级:AUTOMOTIVE
端子形式:GULL WING端子节距:1.27 mm
端子位置:DUAL宽度:3.9 mm
Base Number Matches:1

ADUM1281 数据手册

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3 kV RMS Dual Channel Digital Isolators  
Data Sheet  
ADuM1280/ADuM1281/ADuM1285/ADuM1286  
FEATURES  
GENERAL DESCRIPTION  
Up to 100 Mbps data rate (NRZ)  
Low propagation delay: 20 ns typical  
Low dynamic power consumption  
Bidirectional communication  
3 V to 5 V level translation  
High temperature operation: 125°C  
The ADuM1280/ADuM1281/ADuM1285/ADuM12861 (also  
referred to as ADuM128x in this data sheet) are dual-channel  
digital isolators based on the Analog Devices, Inc., iCoupler®  
technology. Combining high speed CMOS and monolithic air  
core transformer technology, these isolation components  
provide outstanding performance characteristics superior to  
High common-mode transient immunity: >25 kV/μs  
Default high output: ADuM1280/ADuM1281  
Default low output: ADuM1285/ADuM1286  
Narrow body, RoHS-compliant, 8-lead SOIC  
Safety and regulatory approvals (pending)  
UL recognition: 3000 V rms for 1 minute per UL 1577  
CSA Component Acceptance Notice #5A  
alternatives, such as optocoupler devices and other integrated  
couplers.  
With propagation delay at 20 ns, pulse width distortion is less  
than 2 ns for C grade. Channel-to-channel matching is tight at  
5 ns for C grade. The two channels of the ADuM128x are  
independent isolation channels and are available in two channel  
configurations with three different data rates up to 100 Mbps  
(see the Ordering Guide). All models operate with the supply  
voltage on either side ranging from 2.7 V to 5.5 V, providing  
compatibility with lower voltage systems as well as enabling a  
voltage translation functionality across the isolation barrier.  
Unlike other optocoupler alternatives, the ADuM128x isolators  
have a patented refresh feature that ensures dc correctness in  
the absence of input logic transitions. When power is first  
applied or is not yet applied to the input side, the ADuM1280  
and ADuM1281 have a default high output, and the ADuM1285  
and ADuM1286 have a default low output.  
VDE Certificate Of Conformity  
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12  
V
IORM = 560 V peak  
APPLICATIONS  
General-purpose multichannel isolation  
Data converter isolation  
Industrial field bus isolation  
For more information on safety and regulatory approvals, go to  
http://www.analog.com/icouplersafety.  
FUNCTIONAL BLOCK DIAGRAMS  
ADuM1280/  
ADuM1281/  
ADuM1286  
1
2
3
4
8
7
6
5
1
2
3
4
8
7
6
5
V
V
V
V
V
V
V
V
DD1  
DD2  
OA  
OB  
DD1  
DD2  
ADuM1285  
ENCODE  
DECODE  
DECODE  
DECODE  
ENCODE  
DECODE  
V
V
V
OA  
IA  
IB  
IA  
ENCODE  
ENCODE  
V
IB  
OB  
GND  
GND  
GND  
GND  
2
1
2
1
Figure 1. ADuM1280/ADuM1285  
Figure 2. ADuM1281/ADuM1286  
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.  
Rev. 0  
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  
rightsof third parties that may result fromits 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 andregisteredtrademarks 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  
©2012 Analog Devices, Inc. All rights reserved.  
 
 
 
 

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