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LTC2861

更新时间： 2024-09-22 14:58:07
品牌 Logo 应用领域
亚德诺 - ADI /
页数 文件大小 规格书
18页 339K
描述
具集成可通断终端的 20Mbps RS485 收发器

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中文翻译

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LTC2861 数据手册

 浏览型号LTC2861的Datasheet PDF文件第2页浏览型号LTC2861的Datasheet PDF文件第3页浏览型号LTC2861的Datasheet PDF文件第4页浏览型号LTC2861的Datasheet PDF文件第5页浏览型号LTC2861的Datasheet PDF文件第6页浏览型号LTC2861的Datasheet PDF文件第7页 
LTC2859/LTC2861  
20Mbps RS485 Transceivers  
with Integrated Switchable  
Termination  
FeaTures  
DescripTion  
The LTC®2859 and LTC2861 are low power, 20Mbps  
RS485/422 transceivers operating on 5V supplies. The  
receiver includes a logic-selectable 120Ω termination,  
one-eighth unit load supporting up to 256 nodes per bus  
(C-, I-grades), and a failsafe feature that guarantees a high  
outputstateunderconditionsoffloatingorshortedinputs.  
n
Integrated, Logic-Selectable 120Ω Termination  
Resistor  
n
20Mbps Max Data Rate  
n
No Damage or Latchup to ESD: 1ꢀ5k ꢁHM  
n
ꢁigh Input Impedance Supports 2ꢀ6 Nodes  
(C-, I-Grades)  
n
Operation Up to 10ꢀ°C (LTC28ꢀ9ꢁ)  
The driver features a logic-selectable low-EMI 250kbps  
operating mode, and maintains a high output impedance  
over the entire common mode range when disabled or  
when the supply is removed. Excessive power dissipation  
causedbybuscontentionorafaultispreventedbycurrent  
limiting all outputs and by a thermal shutdown.  
n
250kbps Low-EMI Mode  
n
Guaranteed Failsafe Receiver Operation Over the  
Entire Common Mode Range  
n
Current Limited Drivers and Thermal Shutdown  
n
Delayed Micropower Shutdown (5µA Max)  
n
Power Up/Down Glitch-Free Driver Outputs  
n
EnhancedESDprotectionallowstheLTC2859andLTC2861  
towithstand 15kV(humanbodymodel)onthetransceiver  
interface pins without latchup or damage.  
Low Operating Current (900µA Max in Receive Mode)  
n
Meets All TIA/EIA-485-A Specifications  
n
Available in 10-Pin 3mm × 3mm DFN, 12-Pin  
4mm × 3mm DFN and 16-Pin SSOP Packages  
proDucT selecTion GuiDe  
applicaTions  
PART NUMHER  
LTC2859  
DUPLEX  
Half  
PACKAGE  
DFN-10  
n
Low Power RS485/RS422 Transceiver  
n
Level Translator  
LTC2861  
Full  
SSOP-16, DFN-12  
n
Backplane Transceiver  
L, LT, LTC, LTM, Linear Technology, the Linear logo and µModule are registered trademarks of  
Linear Technology Corporation. All other trademarks are the property of their respective owners.  
Typical applicaTion  
LTC2859  
LTC2859  
LTC28ꢀ9 at 20Mbps  
RO  
R
R
RO  
RE  
TE  
RE  
TE  
DI  
120Ω  
DE  
DE  
120Ω  
Y
Z
D
D
DI  
DI  
SLO  
SLO  
LTC2859  
Y–Z  
2859/61 TA01  
120Ω  
285961 TA02  
2V/DIV  
20ns/DIV  
R
D
RO RE TE DE DI SLO  
285961fc  
1
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中文翻译

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