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ADM3491ARZ-REEL7 PDF预览

ADM3491ARZ-REEL7

更新时间： 2024-01-04 18:22:30
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亚德诺 - ADI /
页数 文件大小 规格书
20页 460K
描述
3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers

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ADM3491ARZ-REEL7 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP14,.25针数：14
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：1.14
差分输出：YES驱动器位数：1
输入特性：DIFFERENTIAL SCHMITT TRIGGER接口集成电路类型：LINE TRANSCEIVER
接口标准：EIA-422; EIA-485JESD-30 代码：R-PDSO-G14
JESD-609代码：e3长度：8.65 mm
湿度敏感等级：1功能数量：1
端子数量：14最高工作温度：85 °C
最低工作温度：-40 °C最小输出摆幅：2 V
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP14,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：3.3 V认证状态：Not Qualified
最大接收延迟：120 ns接收器位数：1
座面最大高度：1.75 mm子类别：Line Driver or Receivers
最大压摆率：1.5 mA最大供电电压：3.6 V
最小供电电压：3 V标称供电电压：3.3 V
表面贴装：YES技术：BICMOS
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
端子形式：GULL WING端子节距：1.27 mm
端子位置：DUAL处于峰值回流温度下的最长时间：30
最大传输延迟：1500 ns宽度：3.9 mm
Base Number Matches：1

ADM3491ARZ-REEL7 数据手册

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3.3 V Slew Rate Limited, Half- and  
Full-Duplex, RS-485/RS-422 Transceivers  
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491  
FUNCTIONAL BLOCK DIAGRAMS  
FEATURES  
V
Operate with 3.3 V supply  
CC  
Interoperable with 5 V logic  
EIA RS-422 and RS-485 compliant over full  
common-mode range  
Data rate options  
ADM3483/ADM3488: 250 kbps  
ADM3483/  
ADM3485  
R
RO  
RE  
DE  
DI  
A
B
ADM3485/ADM3490/ADM3491: 10 Mbps  
Half- and full-duplex options  
D
Reduced slew rates for low EMI (ADM3483 and ADM3488)  
2 nA supply current in shutdown mode  
(ADM3483/ADM3485/ADM3491)  
GND  
Figure 1.  
Up to 32 transceivers on the bus  
V
CC  
−7 V to +12 V bus common-mode range  
Specified over the –40°C to +85°C temperature range  
8 ns skew (ADM3485/ADM3490/ADM3491)  
8-lead SOIC and 14-lead SOIC (ADM3491 only) packages  
A
B
R
RO  
ADM3488/  
ADM3490  
APPLICATIONS  
Z
Y
Low power RS-485/RS-422 applications  
Telecom  
DI  
D
Industrial process control  
HVAC  
GND  
Figure 2.  
GENERAL DESCRIPTION  
ADM3491  
The ADM3483/ADM3485/ADM3488/ADM3490/ADM3491 are  
low power, differential line transceivers designed to operate using a  
single 3.3 V power supply. Low power consumption, coupled with a  
shutdown mode, makes the ADM3483/ADM3485/ADM3488/  
ADM3490/ADM3491 ideal for power-sensitive applications.  
A
B
Z
R
RO  
RE  
DE  
DI  
D
Y
The ADM3488/ADM3490/ADM3491 feature full-duplex com-  
munication, while the ADM3483/ADM3485 are designed for  
half-duplex communication.  
Figure 3.  
The ADM3483/ADM3488 feature slew rate limited drivers that  
minimize EMI and reduce reflections caused by improperly ter-  
minated cables, allowing error-free data transmission at data rates  
up to 250 kbps.  
in the internal driver circuitry during fault conditions, then the  
thermal shutdown circuit forces the driver output into a high  
impedance state. If the inputs are unconnected (floating), the  
receiver contains a fail-safe feature that results in a logic high  
output state. The parts are fully specified over the commercial  
and industrial temperature ranges. The ADM3483/ADM3485/  
ADM3488/ADM3490 are available in 8-lead SOIC_N; the  
ADM3491 is available in a 14-lead SOIC_N.  
The ADM3485/ADM3490/ADM3491 transmit at up to 10 Mbps.  
The receiver input impedance is 12 kΩ, allowing up to 32 trans-  
ceivers to be connected on the bus. A thermal shutdown circuit  
prevents excessive power dissipation caused by bus contention or  
by output shorting. If a significant temperature increase is detected  
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 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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ADM3491ARZ-REEL7 替代型号

型号 品牌 替代类型 描述 数据表
ADM3491ARZ-REEL ADI

完全替代

 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
ADM3491AR-REEL7 ADI

完全替代

 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
ADM3491AR ADI

完全替代

 3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver

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