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ADUM1281WARZ-RL7

更新时间： 2024-11-21 20:02:39
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18页 374K
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3kV rms, Default High, Dual-Channel Digital Isolators (1/1 Channel Directionality)

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3 kV RMS Dual Channel Digital Isolators  
Data Sheet  
ADuM1280/ADuM1281/ADuM1285/ADuM1286  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
Up to 100 Mbps data rate (NRZ)  
Low propagation delay: 23 ns typical  
Low dynamic power consumption  
Bidirectional communication  
3.3 V to 5 V level translation  
High temperature operation: 125°C  
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  
UL recognition: 3000 V rms for 1 minute per UL 1577  
CSA Component Acceptance Notice 5A  
VDE Certificate of Conformity  
ADuM1280/  
1
2
3
4
8
7
6
5
V
V
V
V
DD1  
DD2  
OA  
OB  
ADuM1285  
ENCODE  
DECODE  
DECODE  
V
V
IA  
ENCODE  
IB  
GND  
GND  
2
1
Figure 1. ADuM1280/ADuM1285  
ADuM1281/  
ADuM1286  
1
2
3
4
8
7
6
5
V
V
V
V
DD1  
DD2  
DECODE  
ENCODE  
DECODE  
V
OA  
IA  
ENCODE  
V
IB  
OB  
DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12  
GND  
GND  
2
1
V
IORM = 560 V peak  
Qualified for automotive applications  
Figure 2. ADuM1281/ADuM1286  
APPLICATIONS  
General-purpose multichannel isolation  
Data converter isolation  
Industrial field bus isolation  
Hybrid electric vehicles, battery monitor, and motor drive  
GENERAL DESCRIPTION  
The ADuM1280/ADuM1281/ADuM1285/ADuM12861 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 alternatives, such as optocoupler devices and other  
integrated couplers.  
either side ranging from 3.135 V to 5.5 V and the automotive  
grades operate from 3.135 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 ADuM1280/ADuM1281/  
ADuM1285/ADuM1286 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.  
With propagation delay at 23 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 ADuM1280/ADuM1281/  
ADuM1285/ADuM1286 are independent isolation channels  
and are available in two channel configurations with three  
different data rates up to 100 Mbps (see the Ordering Guide).  
Industrial grade models operate with the supply voltage on  
For more information on safety and regulatory approvals, go to  
www.analog.com/icouplersafety.  
1 Protected by U.S. Patents 5,952,849; 6,873,065; 6,903,578; and 7,075,329. Other patents are pending.  
Rev. D  
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  
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 ©2012–2017 Analog Devices, Inc. All rights reserved.  
Technical Support  
www.analog.com  
 
 
 
 
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ADUM1281WARZ-RL7 替代型号

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ADUM1281WARZ ADI

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 3 kV RMS Dual Channel Digital Isolators

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