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LTC2850CDD#TR PDF预览

LTC2850CDD#TR

更新时间: 2024-11-06 20:00:55
品牌 Logo 应用领域
凌特 - Linear 驱动光电二极管接口集成电路驱动器
页数 文件大小 规格书
18页 275K
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LTC2850CDD#TR 数据手册

 浏览型号LTC2850CDD#TR的Datasheet PDF文件第2页浏览型号LTC2850CDD#TR的Datasheet PDF文件第3页浏览型号LTC2850CDD#TR的Datasheet PDF文件第4页浏览型号LTC2850CDD#TR的Datasheet PDF文件第5页浏览型号LTC2850CDD#TR的Datasheet PDF文件第6页浏览型号LTC2850CDD#TR的Datasheet PDF文件第7页 
LTC2850/LTC2851/LTC2852  
3.3V 20Mbps RS485/RS422  
Transceivers  
FEATURES  
DESCRIPTION  
The LTC®2850, LTC2851 and LTC2852 are low power,  
20Mbps RS485/RS422 transceivers operating on 3.3V  
supplies.Thereceiverhasaone-eighthunitloadsupporting  
upto256nodesperbus(C-,I-grade),andafailsafefeature  
that guarantees a high output state under conditions of  
floating or shorted inputs.  
n
3.3V Supply Voltage  
n
20Mbps Maximum Data Rate  
n
No Damage or Latchup Up to ±±5ꢀV ꢁHM  
ꢁigh Input Impedance Supports 256 Nodes  
n
(C-, I-Grade)  
Operation Up to ±25°C (ꢁ-Grade)  
n
n
Guaranteed Failsafe Receiver Operation Over the  
The driver maintains a high output impedance over the  
entire common mode range when disabled or when the  
supplyisremoved.Excessivepowerdissipationcausedby  
bus contention or a fault is prevented by current limiting  
all outputs and by thermal shutdown.  
Entire Common Mode Range  
n
Current Limited Drivers and Thermal Shutdown  
n
Delayed Micropower Shutdown: 5µA Maximum  
(C-, I-Grade)  
n
Power Up/Down Glitch-Free Driver Outputs  
n
Enhanced ESD protection allows these parts to withstand  
up to 15kV (human body model) on the transceiver  
interface pins without latchup or damage.  
Low Operating Current: 370µA Typical in  
Receive Mode  
n
Compatible with TIA/EIA-485-A Specifications  
n
Available in 8-Pin and 10-Pin 3mm × 3mm DFN,  
PART NUMHER  
LTC2850  
DUPLEX  
Half  
PACKAGE  
8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin  
SO Packages  
SO-8, MSOP-8, DFN-8  
SO-8, MSOP-8, DFN-8  
SO-14, MSOP-10, DFN-10  
LTC2851  
Full  
LTC2852  
Full  
APPLICATIONS  
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.  
n
Low Power RS485/RS422 Transceiver  
n
Level Translator  
n
Backplane Transceiver  
TYPICAL APPLICATION  
LTC2850 at 20Mbps Into 54Ω  
LTC2850  
RO1  
V
CC1  
R
RE1  
DE1  
DI1  
DI  
R
R
T
T
A
D
GND1  
B
2V/DIV  
A-B  
LTC2850  
R
RO2  
RE2  
DE2  
DI2  
V
CC2  
285012 TA01b  
20ns/DIV  
D
GND2  
285012 TA01a  
285012fe  
1
For more information www.linear.com/LTC2850  

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