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LTC1487CS8#TRPBF PDF预览

LTC1487CS8#TRPBF

更新时间： 2024-01-18 07:12:07
品牌 Logo 应用领域
凌特 - Linear 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
页数 文件大小 规格书
8页 228K
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中文翻译

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LTC1487CS8#TRPBF 数据手册

 浏览型号LTC1487CS8#TRPBF的Datasheet PDF文件第2页浏览型号LTC1487CS8#TRPBF的Datasheet PDF文件第3页浏览型号LTC1487CS8#TRPBF的Datasheet PDF文件第4页浏览型号LTC1487CS8#TRPBF的Datasheet PDF文件第5页浏览型号LTC1487CS8#TRPBF的Datasheet PDF文件第6页浏览型号LTC1487CS8#TRPBF的Datasheet PDF文件第7页 
LTC1487  
Ultra-Low Power RS485  
with Low EMI, Shutdown  
and High Input Impedance  
U
DESCRIPTIO  
EATURE  
High Input Impedance: Up to 256 Transceivers  
on the Bus  
S
F
The LTC®1487 is an ultra-low power differential line trans-  
ceiverdesignedwithhighimpedanceinputsallowingupto  
256 transceivers to share a single bus. It meets the  
requirementsofRS485andRS422.TheLTC1487features  
output drivers with controlled slew rate, decreasing the  
EMI radiated from the RS485 lines, and improving signal  
fidelity with misterminated lines. The CMOS design offers  
significant power savings without sacrificing ruggedness  
against overload or ESD damage. Typical quiescent cur-  
rent is only 80µA while operating and 1µA in shutdown.  
■
■
■
■
■
■
■
Low Power: ICC = 120µA Max with Driver Disabled  
ICC = 200µA Max with Driver Enabled, No Load  
1µA Quiescent Current in Shutdown Mode  
Controlled Slew Rate Driver for Reduced EMI  
Single 5V Supply  
ESD Protection to ±10kV On Receiver Inputs and  
Driver outputs  
–7V to 12V Common-Mode Range Permits ±7V  
Ground Difference Between Devices on the Data Line  
Thermal Shutdown Protection  
Power Up/Down Glitch-Free Driver Outputs Permit  
Live Insertion or Removal of Transceiver  
Driver Maintains High Impedance in Three-State  
or with the Power Off  
■
The driver and receiver feature three-state outputs, with  
the driver outputs maintaining high impedance over the  
entire common-mode range. Excessive power dissipation  
caused by bus contention or faults is prevented by a  
thermal shutdown circuit which forces the driver outputs  
into a high impedance state. The receiver has a fail-safe  
feature which guarantees a high output state when the  
inputsareleftopen. I/Opinsareprotectedagainstmultiple  
ESD strikes of over ±10kV using the Human Body Model.  
■
■
■
■
Pin Compatible with the LTC485  
O U  
PPLICATI  
A
S
The LTC1487 is fully specified over the commercial tem-  
perature range and is available in 8-pin DIP and SO  
packages.  
■
■
■
Battery-Powered RS485/RS422 Applications  
Low Power RS485/RS422 Transceiver  
Level Translator  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
O
TYPICAL APPLICATI  
LTC1487  
LTC1487  
R
1
2
3
1
2
3
RO  
RE  
DE  
R
RO  
RE  
DE  
2000 FEET OF TWISTED-PAIR WIRE  
DI  
7
6
7
4
4
120Ω  
120Ω  
DI  
D
D
DI  
A
B
6
330Ω  
4.7nF  
RO  
EQUIVALENT LOAD OF 256  
LTC1487 TRANSCEIVERS  
LTC1487 • TA01  
LTC1487 • TA02  
1
12345678

中文翻译

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LTC1487CS8#TRPBF 替代型号

型号 品牌 替代类型 描述 数据表
SN75LBC182DR TI

类似代替

 DIFFERENTIAL BUS TRANSCEIVER
SN75LBC182D TI

功能相似

 DIFFERENTIAL BUS TRANSCEIVER
SN75HVD3082EDR TI

功能相似

 LOW-POWER RS-485 TRANSCEIVER

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