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LTC2855CGNPBF PDF预览

LTC2855CGNPBF

更新时间: 2024-01-27 18:59:43
品牌 Logo 应用领域
凌特 - Linear /
页数 文件大小 规格书
16页 218K
描述
3.3V 20Mbps RS485/RS422 Transceivers with Integrated Switchable Termination

LTC2855CGNPBF 技术参数

是否无铅:含铅是否Rohs认证:符合
生命周期:Active包装说明:SSOP,
针数:16Reach Compliance Code:compliant
风险等级:5.06Is Samacsys:N
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-485-A; TIA-485-AJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:4.8895 mm
湿度敏感等级:1功能数量:1
端子数量:16最高工作温度:85 °C
最低工作温度:-40 °C封装主体材料:PLASTIC/EPOXY
封装代码:SSOP封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, SHRINK PITCH峰值回流温度(摄氏度):260
认证状态:Not Qualified最大接收延迟:70 ns
接收器位数:1座面最大高度:1.75 mm
最大供电电压:3.6 V最小供电电压:3 V
标称供电电压:3.3 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:0.635 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:50 ns宽度:3.899 mm
Base Number Matches:1

LTC2855CGNPBF 数据手册

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LTC2854/LTC2855  
3.3V 20Mbps RS485/RS422  
Transceivers with Integrated  
Switchable Termination  
DESCRIPTION  
FEATURES  
The LTC®2854 and LTC2855 are low power, 20Mbps  
RS485/RS422 transceivers operating on 3.3V supplies.  
The receiver includes a logic-selectable 120Ω termina-  
tion, one-eighth unit load supporting up to 256 nodes per  
bus (C, I-Grade), and a failsafe feature that guarantees a  
high output state under conditions of floating or shorted  
inputs.  
Integrated, Logic-Selectable 120Ω Termination  
Resistor  
3.3V Supply Voltage  
20Mbps Maximum Data Rate  
No Damage or Latchup Up to 2ꢀ5V ꢁHM  
ꢁigh Input Impedance Supports 2ꢀ6 Nodes  
(C, I-Grade)  
Operation Up to 12ꢀ°C (ꢁ-Grade)  
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 a thermal shutdown.  
Guaranteed Failsafe Receiver Operation Over the  
Entire Common Mode Range  
Current Limited Drivers and Thermal Shutdown  
Delayed Micropower Shutdown: 5μA Maximum  
(C, I-Grade)  
EnhancedESDprotectionallowstheLTC2854towithstand  
25ꢀV(humanbodymodel)andtheLTC2855towithstand  
15ꢀV on the transceiver interface pins without latchup  
or damage.  
Power Up/Down Glitch-Free Driver Outputs  
Low Operating Current: 370μA Typical in  
Receive Mode  
Compatible with TIA/EIA-485-A Specifications  
Available in 10-Pin 3mm × 3mm DFN, 12-Pin  
4mm × 3mm DFN and 16-Pin SSOP Pacꢀages  
PRODUCT SELECTION GUIDE  
APPLICATIONS  
PART NUMHER  
DUPLEX  
PACKAGE  
LTC2854  
HALF  
DFN-10  
Low Power RS485/RS422 Transceiver  
Level Translator  
LTC2855  
FULL  
SSOP-16, DFN-12  
Bacꢀplane Transceiver  
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
TYPICAL APPLICATION  
LTC28ꢀ4 at 20Mbps into ꢀ4  
Ω
LTC2854  
LTC2854  
R
RO  
R
RO  
RE  
TE  
DI  
RE  
TE  
120Ω  
DE  
DE  
120Ω  
A
B
D
D
DI  
DI  
2V/DIV  
A-B  
285455 TA01  
LTC2854  
120Ω  
285455 TA01b  
R
20ns/DIV  
D
RO RE TE DE DI  
285455fa  
1

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