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ADM1491EBRZ-REEL7 PDF预览

ADM1491EBRZ-REEL7

更新时间： 2024-02-09 06:28:57
品牌 Logo 应用领域
亚德诺 - ADI 线路驱动器或接收器驱动程序和接口接口集成电路光电二极管PC
页数 文件大小 规格书
16页 310K
描述
16 Mbps, ESD Protected, Full-Duplex RS-485 Transceivers

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ADM1491EBRZ-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：1.38
Samacsys Confidence：Samacsys Status：Released
Schematic Symbol：https://componentsearchengine.com/symbol.php?partID=579106PCB Footprint：https://componentsearchengine.com/footprint.php?partID=579106
Samacsys PartID：579106Samacsys Image：https://componentsearchengine.com/Images/9/ADM1491EBRZ-REEL7.jpg
Samacsys Thumbnail Image：https://componentsearchengine.com/Thumbnails/1/ADM1491EBRZ-REEL7.jpgSamacsys Pin Count：14
Samacsys Part Category：Integrated CircuitSamacsys Package Category：Other
Samacsys Footprint Name：SOIC127P600X175-14NSamacsys Released Date：2017-01-11 11:21:59
Is Samacsys：N差分输出：YES
驱动器位数：1高电平输入电流最大值：0.000001 A
输入特性：DIFFERENTIAL SCHMITT TRIGGER接口集成电路类型：LINE TRANSCEIVER
接口标准：EIA-422-B; TIA-422-B; EIA-485-A; TIA-485-AJESD-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：1.5 V
最大输出低电流：0.004 A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：5 V
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
子类别：Line Driver or Receivers最大压摆率：2 mA
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
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：17 ns宽度：3.9 mm
Base Number Matches：1

ADM1491EBRZ-REEL7 数据手册

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16 Mbps, ESD Protected,  
Full-Duplex RS-485 Transceivers  
ADM1491E  
FUNCTIONAL BLOCK DIAGRAM  
FEATURES  
V
CC  
RS-485/RS-422 full duplex transceiver, for high speed motor  
control applications  
ADM1491E  
A
B
16 Mbps data rate  
RO  
R
8 kV ESD protection on RS-485 input/output pins  
Complies with ANSI/TIA/EIA-485-A-1998  
Open circuit fail-safe  
RE  
DE  
Z
Y
Suitable for 5 V power supply applications  
32 nodes on the bus (1 unit load)  
Thermal shutdown protection  
Operating temperature range: −40°C to +85°C  
Packages  
D
DI  
GND  
Figure 1.  
Narrow-body 14-lead SOIC  
10-lead MSOP  
APPLICATIONS  
RS-485/RS-422 interfaces  
Industrial field networks  
High data rate motor control  
Multipoint data transmission systems  
Single-ended to differential signal conversion  
GENERAL DESCRIPTION  
The ADM1491E is an RS-485 transceiver with 8 ꢀk ESD pro-  
tection and is suitable for high speed, full-duplex communication  
on multipoint transmission lines. In particular, the ADM1491E  
is designed for use in motor control applications requiring commu-  
nications at data rates up to 16 Mbps.  
Short-circuit protection circuits limit the maximum output  
current to 25ꢁ mA during fault conditions. A thermal shut-  
down circuit senses if the die temperature rises above 15ꢁ°C  
and forces the driver outputs into a high impedance state under  
this condition.  
The ADM1491E is designed for balanced transmission lines  
and complies with TIA/EIA-485-A-98. The device has a 12 ꢀΩ  
receiver input impedance for unit load RS-485 operation  
allowing up to 32 nodes on the bus.  
The receiver of the ADM1491E contains a fail-safe feature that  
results in a logic high output state if the inputs are unconnected  
(floating).  
The ADM1491E features extremely fast and closely matched  
switching times. Minimal driver propagation delays permit  
transmission at data rates up to 16 Mbps while low sꢀew  
minimizes EMI interference.  
The differential transmitter outputs and receiver inputs feature  
electrostatic discharge circuitry that provides protection to 8 ꢀk  
using the human body model (HBM).  
The ADM1491E operates from a single 5 k power supply. Exces-  
sive power dissipation caused by bus contention or output shorting  
is prevented by short-circuit protection and thermal circuitry.  
The ADM1491E is fully specified over the commercial and  
industrial temperature ranges and is available in two pacꢀages:  
a narrow-body 14-lead SOIC and a 1ꢁ-lead MSOP.  
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  
©2008 Analog Devices, Inc. All rights reserved.  
 
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