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ADM1486 PDF预览

ADM1486

更新时间: 2024-02-10 12:19:56
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
8页 149K
描述
+5 V Low Power RS-485 PROFIBUS Transceiver

ADM1486 技术参数

是否无铅: 含铅是否Rohs认证: 不符合
生命周期:Obsolete零件包装代码:SOIC
包装说明:SOP,针数:8
Reach Compliance Code:not_compliantECCN代码:EAR99
HTS代码:8542.39.00.01风险等级:5.14
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-G8
JESD-609代码:e0长度:4.9 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE峰值回流温度(摄氏度):240
认证状态:Not Qualified最大接收延迟:20 ns
接收器位数:1座面最大高度:1.75 mm
最大供电电压:5.25 V最小供电电压:4.75 V
标称供电电压:5 V表面贴装:YES
技术:BICMOS温度等级:COMMERCIAL
端子面层:Tin/Lead (Sn85Pb15)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:NOT SPECIFIED最大传输延迟:15 ns
宽度:3.9 mmBase Number Matches:1

ADM1486 数据手册

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PRELIMINARY TECHNICAL DATA  
+5 V Low Power  
a
RS-485PROFIBUSTransceiver  
Preliminary Technical Data  
ADM1486  
FEATURES  
FUNCTIONAL BLOCK DIAGRAM  
Meets & Exceeds EIA RS-485 & EIA RS-422 Standard  
50 Mb/s Data Rate  
Recommended for PROFIBUS Applications  
2.1V Minimum Differential Output with 54  
Termination  
Low Power 0.5mA ICC  
Thermal Shutdown & Short Circuit Protection  
Zero Skew Driver & Receiver  
R
V
RO  
RE  
DE  
CC  
B
A
Driver Propagation Delay: 8 ns  
Receiver Propagation Delay: 12 ns  
High Z Outputs with Drivers Disabled or Power Off  
Superior Upgrade for SN65ALS1176  
15kV HBM ESD Protection on I/O Pins A & B  
Available in Standard 8-pin SOIC & Miniature 8-pin  
Micro SOIC packages  
D
DI  
GND  
ADM1486  
APPLICATIONS  
Industrial Field Equipment  
GENERAL DESCRIPTION  
The ADM1486 is a differential line transceiver suitable  
for high speed bidirectional data communication on  
multipoint bus transmission lines. It is designed for  
balanced data transmission, complies with EIA Standards  
RS-485 and RS-422 and is recommended for PROFIBUS  
applications. The part contains a differential line driver  
and a differential line receiver. Both the driver and the  
receiver may be enabled independently. When disabled or  
with power off, the driver outputs are tristated.  
This minimizes the loading effect when the transceiver is  
not being utilized. The high impedance driver output is  
maintained over the entire common-mode voltage range  
from –7 V to +12 V.  
The receiver contains a fail safe feature which results in a  
logic high output state if the inputs are unconnected  
(floating).  
The ADM1486 is fabricated on BiCMOS, an advanced  
mixed technology process combining low power CMOS  
with fast switching bipolar technology. All inputs and  
outputs contain protection against ESD; all driver outputs  
feature high source and sink current capability. An epi-  
taxial layer is used to guard against latch-up.  
The ADM1486 operates from a single +5 V power supply.  
Excessive power dissipation caused by bus contention or  
by 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.  
The ADM1486 features extremely fast switching speeds.  
Minimal driver propagation delays permit transmission at  
data rates up to 50 Mbits/s while low skew minimizes  
EMI interference.  
Up to 50 transceivers may be connected simultaneously on  
a bus, but only one driver should be enabled at any time.  
It is important therefore that the remaining disabled  
drivers do not load the bus. To ensure this, the ADM1486  
driver features high output impedance when disabled and  
also when powered down.  
The part is fully specified over the commercial and indus-  
trial temperature range and is available in an 8-lead  
DIL/SOIC/µSOIC package.  
REV Pr. 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  
which may result from its use. No license is granted by implication or  
otherwise under any patent or patent rights of Analog Devices.  
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.  
Tel: 781/329-4700  
Fax: 781/326-8703  
World Wide Web Site: http://www.analog.com  
© Analog Devices, Inc., 2000  

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