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參數(shù)資料
| 型號： | LTC1689CS |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 通用總線功能 |
| 英文描述： | 100Mbps RS485 Hot Swapable Quad Drivers |
| 中文描述： | QUAD LINE DRIVER, PDSO16 |
| 封裝： | 0.150 INCH, PLASTIC, SO-16 |
| 文件頁數(shù)： | 6/12頁 |
| 文件大?。?/td> | 160K |
| 代理商： | LTC1689CS |
6
LTC 1688/LTC 1689
APPLICATIO
S I
FOR
ATIO
U
The LTC1688/LTC1689 family of RS485 quad differential
drivers employs a novel architecture and fabrication pro-
cess that allows ultra high speed operation (100Mbps)
and Hot Swap capability while maintaining the ruggedness
of RS485 operation (three-state outputs can float from
–7V to 12V with a single 5V supply). Unlike typical CMOS
drivers whose propagation delay can vary as much as
500%, the propagation delay of the LTC1688/LTC1689
drivers will only vary by
±
50% (a narrow
±
4ns window).
This performance is achieved by designing the input stage
of each driver to have minimum propagation delay shift
over temperature and from part to part.
W
U
U
The LTC1688/LTC1689 have an ESD rating of 6kV human
body model.
50Mbps with 3V Operation
The LTC1688/LTC1689 are designed to operate with a 3V
power supply and still achieve 50Mbps operation (see
Electrical Characteristics table for 3V DC and AC specifica-
1688/89 F04
B
A
DI
V
O
V
O
–V
O
1/2 V
O
3V
0V
t
SKEW
1.5V
t
PLH
1.5V
t
PHL
1/2 V
O
V
DIFF
= V(A) – V(B)
90%
10%
t
f
90%
10%
t
r
t
SKEW
f = 1MHz; t
r
<
3ns; t
f
< 3ns
Figure 4. Driver Propagation Delays
1688/89 F05
A, B
EN
3V
0V
f = 1MHz; t
r
≤
3ns; t
f
≤
3ns
V
OL
V
OH
1.5V
1.5V
5V
OUTPUT NORMALLY LOW
t
ZL
1/2 V
DD
1/2 V
DD
t
LZ
0.5V
A, B
0V
t
ZH
OUTPUT NORMALLY HIGH
t
HZ
0.5V
Figure 5. Driver Enable and Disable Times
SWITCHI G TI E WAVEFOR S
U
Figure 6. 3V High Speed Data Transmission
20ns/DIV
2V/DIV
2V/DIV
5V/DIV
1688/89 F06
LTC1689 OUTPUT
RECEIVER OUTPUT
FAR END OF CABLE
tions). Figure 6 shows waveforms of an LTC1689 driving
a receiver using 100 feet of Category 5 UTP. Both parts are
operating at 3V supply.
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| LTC1688 | 100Mbps RS485 Hot Swapable Quad Drivers(100Mbps RS485熱交換四路驅(qū)動器) |
| LTC1689 | 100Mbps RS485 Hot Swapable Quad Drivers(100Mbps RS485熱交換四路驅(qū)動器) |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC1689CS#PBF | 功能描述:IC DVR 100MBPS RS485 QUAD 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
| LTC1689CS#PBF | 制造商:Linear Technology 功能描述:DIFFERENTIAL LINE DRIVER, 100MBPS, SOIC- |
| LTC1689CS#TR | 功能描述:IC DVR 100MBPS QUAD RS485 16SOIC RoHS:否 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 |
| LTC1689CS#TRPBF | 功能描述:IC DVR 100MBPS RS485 QUAD 16SOIC 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 |
| LTC1689IS | 功能描述:IC DVR 100MBPS RS485 QUAD 16SOIC RoHS:否 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 |
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