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ADUM1301BRW

更新时间: 2024-02-28 22:36:17
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亚德诺 - ADI /
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20页 846K
描述
Triple-Channel Digital Isolators

ADUM1301BRW 数据手册

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Triple-Channel Digital Isolators  
ADuM1300/ADuM1301  
GENERAL DESCRIPTION  
FEATURES  
Low power operation  
5 V operation  
The ADuM130x are 3-channel digital isolators based on Analog  
Devices’ iCoupler® technology. Combining high speed CMOS  
and monolithic transformer technology, these isolation compo-  
nents provide outstanding performance characteristics superior  
to alternatives such as optocoupler devices.  
1.2 mA per channel max @ 0 Mbps to 2 Mbps  
3.5 mA per channel max @ 10 Mbps  
32 mA per channel max @ 90 Mbps  
3 V operation  
0.8 mA per channel max @ 0 Mbps to 2 Mbps  
2.2 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 consume 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 ADuM130x isolators provide three independent isolation  
channels in a variety of channel configurations and data rates  
(see the Ordering Guide). Both 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 ADuM130x 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 ADuM130x 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  
V
1
2
3
4
5
6
7
8
16  
V
V
1
16  
V
DD2  
DD1  
DD2  
DD1  
GND  
V
15 GND  
GND  
2
3
4
5
6
7
8
15 GND  
1
2
1
IA  
IB  
2
ENCODE  
ENCODE  
DECODE  
DECODE  
DECODE  
ENCODE  
ENCODE  
ENCODE  
ENCODE  
DECODE  
DECODE  
DECODE  
V
V
14  
13  
12  
V
V
V
14  
13  
12  
V
V
V
OA  
OB  
IC  
IA  
IB  
IC  
OA  
OB  
OC  
V
V
V
OC  
NC  
11 NC  
NC  
NC  
11 NC  
V
10  
9
V
OR V  
E2  
10  
9
V
E1  
E2  
GND  
GND  
2
GND  
GND  
1
1
2
Figure 2. ADuM1301 Functional Block Diagram  
Figure 1. ADuM1300 Functional Block Diagram  
Rev. C  
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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