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ADUM1402ARW

更新时间： 2024-11-24 22:03:59
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亚德诺 - ADI 模拟IC信号电路光电二极管
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24页 1271K
描述
Quad-Channel Digital Isolators

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ADUM1402ARW 数据手册

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Quad-Channel Digital Isolators  
ADuM1400/ADuM1401/ADuM1402  
GENERAL DESCRIPTION  
FEATURES  
Low power operation  
5 V operation  
The ADuM140x are 4-channel digital isolators based on Analog  
Devices’ 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.  
1.0 mA per channel max @ 0 Mbps to 2 Mbps  
3.5 mA per channel max @ 10 Mbps  
31 mA per channel max @ 90 Mbps  
3 V operation  
0.7 mA per channel max @ 0 Mbps to 2 Mbps  
2.1 mA per channel max @ 10 Mbps  
20 mA per channel max @ 90 Mbps  
Bidirectional communication  
By avoiding the use of LEDs and photodiodes, iCoupler devices  
remove the design difficulties commonly associated with  
optocouplers. The typical optocoupler concerns regarding  
uncertain current transfer ratios, nonlinear transfer functions,  
and temperature and lifetime effects are eliminated with the  
simple iCoupler digital interfaces and stable performance  
characteristics. The need for external drivers and other discretes  
is eliminated with these iCoupler products. Furthermore,  
iCoupler devices consumes one-tenth to one-sixth the power of  
optocouplers at comparable signal data rates.  
3 V/5 V level translation  
High temperature operation: 105°C  
High data rate: dc to 90 Mbps (NRZ)  
Precise timing characteristics  
2 ns max pulse-width distortion  
2 ns max channel-to-channel matching  
High common-mode transient immunity: >25 kV/μs  
Output enable function  
The ADuM140x isolators provide four independent isolation  
channels in a variety of channel configurations and data rates  
(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. In  
addition, the ADuM140x provides low pulse-width distortion  
(<2 ns for CRW grade) and tight channel-to-channel matching  
(<2 ns for CRW grade). Unlike other optocoupler alternatives,  
the ADuM140x isolators have a patented refresh feature that  
ensures dc correctness in the absence of input logic transitions  
and during power-up/power-down conditions.  
Wide body 16-lead SOIC package, Pb-free models available  
Safety and regulatory approvals  
UL recognition: 2500 V rms for 1 minute per UL 1577  
CSA component acceptance notice #5A  
VDE certificate of conformity  
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01  
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000  
VIORM = 560 V peak  
APPLICATIONS  
General-purpose multichannel isolation  
SPI® interface/data converter isolation  
RS-232/RS-422/RS-485 transceiver  
Industrial field bus isolation  
FUNCTIONAL BLOCK DIAGRAMS  
1
2
3
4
5
6
7
8
16  
1
2
3
16  
15  
14  
1
2
3
4
5
6
7
8
16  
V
V
V
V
V
V
DD1  
DD2  
DD1  
DD2  
DD1  
DD2  
GND  
15 GND  
GND  
GND  
2
GND  
15 GND  
2
1
IA  
IB  
IC  
2
1
IA  
IB  
IC  
1
IA  
IB  
ENCODE  
ENCODE  
ENCODE  
ENCODE  
DECODE  
DECODE  
DECODE  
DECODE  
14  
ENCODE  
ENCODE  
DECODE  
DECODE  
DECODE  
DECODE  
ENCODE  
ENCODE  
ENCODE  
ENCODE  
DECODE  
DECODE  
DECODE  
DECODE  
ENCODE  
ENCODE  
14  
13  
12  
11  
10  
9
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
V
OA  
OB  
OC  
OD  
E2  
OA  
OB  
OC  
ID  
OA  
OB  
IC  
13  
12  
11  
10  
9
4
5
6
7
8
13  
12  
11  
10  
9
V
V
OC  
OD  
V
V
OD  
ID  
NC  
GND  
ID  
V
V
E1  
E2  
E1  
E2  
GND  
2
GND  
GND  
2
GND  
GND  
2
1
1
1
Figure 1. ADuM1400 Functional Block Diagram  
Figure 2. ADuM1401 Functional Block Diagram  
Figure 3. ADuM1402 Functional Block Diagram  
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.  
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  
Fax: 781.326.8703  
www.analog.com  
© 2004 Analog Devices, Inc. All rights reserved.  
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ADUM1402ARW 替代型号

型号 品牌 替代类型 描述 数据表
ADUM1402ARW-RL ADI

完全替代

 Quad-Channel Digital Isolators
ADUM1402BRWZ ADI

类似代替

 Quad-Channel Digital Isolators
ADUM1402ARWZ ADI

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 Quad-Channel Digital Isolators

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ADUM1402BRWZ-RL ADI

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