參數(shù)資料
型號: LTC1686IS8#TR
廠商: Linear Technology
文件頁數(shù): 1/12頁
文件大?。?/td> 0K
描述: IC TXRX RS485 PREC DELAY 8SOIC
標(biāo)準(zhǔn)包裝: 2,500
類型: 收發(fā)器
驅(qū)動器/接收器數(shù): 1/1
規(guī)程: RS422,RS485
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 8-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 8-SOIC
包裝: 帶卷 (TR)
1
LTC1686/LTC1687
52Mbps Precision Delay
RS485 Fail-Safe Transceivers
DESCRIPTION
U
s
Precision Propagation Delay Over Temperature:
Receiver/Driver: 18.5ns
±3.5ns
s
High Data Rate:
52Mbps
s
Low tPLH/tPHL Skew:
Receiver/Driver: 500ps Typ
s
–7V to 12V RS485 Input Common Mode Range
s
Guaranteed Fail-Safe Operation Over the Entire
Common Mode Range
s
High Input Resistance:
≥22k, Even When Unpowered
s
Short-Circuit Protected
s
Thermal Shutdown Protected
s
Driver Maintains High Impedance in Three-State or
with Power Off
s
Single 5V Supply
s
Pin Compatible with LTC490/LTC491
s
45dB CMRR at 26MHz
FEATURES
The LTC
1686/LTC1687 are high speed, precision delay,
full-duplex RS485 transceivers that can operate at data
rates as high as 52Mbps. The devices also meet the
requirements of RS422.
A unique architecture provides very stable propagation
delays and low skew over a wide common mode and
ambient temperature range.
The driver and receiver feature three-state outputs, with
disabled driver outputs maintaining high impedance over
the entire common mode range. A short-circuit feature
detects shorted outputs and substantially reduces driver
output current. A similar feature also protects the receiver
output from short circuits. Thermal shutdown circuitry
protects from excessive power dissipation.
The receiver has a fail-safe feature that guarantees a high
output state when the inputs are shorted or are left floating.
The LTC1686/LTC1687 RS485 transceivers guarantee
receiver fail-safe operation over the
entire common mode
range (– 7V to 12V). Receiver input resistance remains
≥22k when the device is unpowered or disabled.
The LTC1686/LTC1687 operate from a single 5V supply
and draw only 7mA of supply current.
APPLICATIONS
U
s
High Speed RS485/RS422 Full Duplex Transceivers
s
Level Translator
s
Backplane Transceiver
s
STS-1/OC-1 Data Transceiver
s
Signal Repeaters
, LTC and LT are registered trademarks of Linear Technology Corporation.
10Mbps Data Pulse
400 Feet Category 5 UTP
1686/87 TA02
DRIVER INPUT
RECEIVER
INPUT
RECEIVER
OUTPUT
100ns/DIV
1V/DIV
2V/DIV
5V/DIV
CABLE DELAY
LTC1686/87 TA01
100
100
100
100
LTC1686
R
D
R
D
3
2
7
8
6
5
400 FT OF CATEGORY 5 UTP
RECEIVER
DRIVER
RECEIVER
DRIVER
TYPICAL APPLICATION
U
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
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LTC1687CS#TRPBF 功能描述:IC TXRX RS485 PREC DELAY 14-SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器,接收器,收發(fā)器 系列:- 標(biāo)準(zhǔn)包裝:27 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):3/3 規(guī)程:RS232,RS485 電源電壓:4.75 V ~ 5.25 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:管件
LTC1687CSPBF 制造商:Linear Technology 功能描述:RS-485 Driver/Receiver 52Mbps Delay SO14