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ADM489ARZ-REEL7

更新时间： 2024-11-27 12:52:39
品牌 Logo 应用领域
亚德诺 - ADI 驱动器接口集成电路光电二极管信息通信管理
页数 文件大小 规格书
16页 386K
描述
Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

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ADM489ARZ-REEL7 数据手册

 浏览型号ADM489ARZ-REEL7的Datasheet PDF文件第2页浏览型号ADM489ARZ-REEL7的Datasheet PDF文件第3页浏览型号ADM489ARZ-REEL7的Datasheet PDF文件第4页浏览型号ADM489ARZ-REEL7的Datasheet PDF文件第5页浏览型号ADM489ARZ-REEL7的Datasheet PDF文件第6页浏览型号ADM489ARZ-REEL7的Datasheet PDF文件第7页 
Full-Duplex, Low Power,  
Slew Rate Limited, EIA RS-485 Transceivers  
ADM488/ADM489  
FEATURES  
FUNCTIONAL BLOCK DIAGRAMS  
Meets EIA RS-485 and RS-422 standards  
250 kbps data rate  
Single 5 V 10% supply  
−7 V to +12 V bus common-mode range  
12 kΩ input impedance  
2 kV EFT protection meets IEC1000-4-4  
High EM immunity meets IEC1000-4-3  
Reduced slew rate for low EM interference  
Short-circuit protection  
ADM488  
A
R
RO  
DI  
B
Z
Y
D
Figure 1.  
Excellent noise immunity  
30 μA supply current  
ADM489  
A
B
APPLICATIONS  
Low power RS-485 and RS-422 systems  
DTE-DCE interface  
Packet switching  
Local area networks  
R
RO  
RE  
DE  
DI  
Z
Y
D
Data concentration  
Data multiplexers  
Integrated services digital network (ISDN)  
Figure 2.  
GENERAL DESCRIPTION  
The receiver contains a fail-safe feature that results in a logic  
high output state if the inputs are unconnected (floating).  
The ADM488 and ADM489 are low power, differential line  
transceivers suitable for communication on multipoint bus  
transmission lines. They are intended for balanced data  
transmission and comply with both Electronics Industries  
Association (EIA) RS-485 and RS-422 standards. Both products  
contain a single differential line driver and a single differential  
line receiver, making them suitable for full-duplex data transfer.  
The ADM489 contains an additional receiver and driver enable  
control.  
The ADM488/ADM489 are fabricated on BiCMOS, an  
advanced mixed technology process combining low power  
CMOS with fast switching bipolar technology.  
The ADM488/ADM489 are fully specified over the industrial  
temperature range and are available in PDIP, SOIC, and TSSOP  
packages.  
The input impedance is 12 kΩ, allowing 32 transceivers to be  
connected on the bus.  
The ADM488/ADM489 operate from a single 5 V 1ꢀ0 power  
supply. Excessive power dissipation caused by bus contention or  
output shorting is prevented by a thermal shutdown circuit.  
This feature forces the driver output into a high impedance state  
if, during fault conditions, a significant temperature increase is  
detected in the internal driver circuitry.  
Rev. D  
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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ADM489ARZ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
ADM489ARZ-REEL ADI

类似代替

 5 V, Slew-Rate Limited, Low Power, 250 kbps, Full Duplex EIA RS-485 Transceiver (with DE/R
ADM489ARZ ADI

类似代替

 Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers
ADM489ABRZ-REEL7 ADI

类似代替

 Full-Duplex, Low Power, Slew Rate Limited, EIA RS-485 Transceivers

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