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ADUM3200CRZ

更新时间: 2024-02-21 02:47:59
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亚德诺 - ADI 光电二极管
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20页 543K
描述
Dual-Channel, Digital Isolators, Enhanced System-Level ESD Reliability

ADUM3200CRZ 数据手册

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Dual-Channel, Digital Isolators,  
Enhanced System-Level ESD Reliability  
ADuM3200/ADuM3201  
GENERAL DESCRIPTION  
FEATURES  
Enhanced system-level ESD performance per IEC 61000-4-x  
Narrow body, 8-lead SOIC, Pb-free package  
Low power operation  
The ADuM320x1 are dual-channel, digital isolators based on  
Analog Devices’ iCoupler® technology. Combining high speed  
CMOS and monolithic transformer technology, these isolation  
components provide outstanding performance characteristics  
superior to alternatives such as optocoupler devices.  
5 V operation  
1.6 mA per channel maximum @ 0 Mbps to 2 Mbps  
3.7 mA per channel maximum @ 10 Mbps  
7.5 mA per channel maximum @ 25 Mbps  
3 V operation  
1.4 mA per channel maximum @ 0 Mbps to 2 Mbps  
2.4 mA per channel maximum @ 10 Mbps  
4.6 mA per channel maximum @ 25 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 discrete  
components 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 25 Mbps (NRZ)  
Precise timing characteristics  
3 ns maximum pulse-width distortion  
3 ns maximum channel-to-channel matching  
High common-mode transient immunity: >25 kV/μs  
Safety and regulatory approvals  
UL recognition: 2500 V rms for 1 minute per UL 1577  
CSA Component Acceptance Notice #5A  
VDE Certificate of Conformity  
The ADuM320x isolators provide two independent isolation  
channels in a variety of channel configurations and data rates  
(see the Ordering Guide). Both parts 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. The  
ADuM320x isolators have a patented refresh feature that ensures  
dc correctness in the absence of input logic transitions and  
during power-up/power-down conditions.  
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01  
DIN EN 60950 (VDE 0805): 2001-12; DIN EN 60950: 2000  
VIORM = 560 V peak  
In comparison to the ADuM120x isolators, the ADuM320x  
isolators contain various circuit and layout changes to provide  
increased capability relative to system-level IEC 61000-4-x  
testing (ESD, burst, surge). The precise capability in these tests  
for either the ADuM120x or ADuM320x products is strongly  
determined by the design and layout of the user’s board or  
module. For more information, see Application Note AN-793,  
ESD/Latch-Up Considerations with iCoupler Isolation Products.  
APPLICATIONS  
Size-critical multichannel isolation  
SPI® interface/data converter isolation  
RS-232/RS-422/RS-485 transceiver isolation  
Digital field bus isolation  
1 Protected by U.S. Patents 5,952,849; 6,873,065; and other pending patents.  
FUNCTIONAL BLOCK DIAGRAMS  
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  
IA  
ENCODE  
ENCODE  
DECODE  
DECODE  
DECODE  
ENCODE  
ENCODE  
DECODE  
V
V
V
OA  
IA  
V
IB  
IB  
OB  
GND  
GND  
GND  
GND  
2
1
2
1
Figure 1. ADuM3200 Functional Block Diagram  
Figure 2. ADuM3201 Functional Block Diagram  
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  
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 registeredtrademarks arethe 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  
©2006 Analog Devices, Inc. All rights reserved.  
 

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