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參數(shù)資料
| 型號(hào)： | MAX1482 |
| 廠商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low Power, Slew-Rate-Limited RS-485 Transceivers(250kbps，半雙工，RS-485收發(fā)器) |
| 中文描述： | 20µA、1/8單位負(fù)載、限擺率、RS-485收發(fā)器 |
| 文件頁(yè)數(shù)： | 10/12頁(yè) |
| 文件大?。?/td> | 142K |
| 代理商： | MAX1482 |
M
Line Length vs. Data Rate
The RS-485/RS-422 standard covers line lengths up to
4000 feet. For line lengths greater than 4000 feet, see
Figure 16.
Figure 13 shows the system differential voltage for the
parts driving 4000 feet of 26AWG twisted-pair wire at
110kHz into 120
loads. Even after 4000 feet of cable,
the MAX1482/MAX1483 output shows virtually no dis-
tortion.
T ypic al Applic ations
The MAX1482/MAX1483 transceivers are designed for
bidirectional data communications on multipoint bus
transmission lines. Figures 14 and 15 show typical net-
work applications circuits. These parts can also be
used as line repeaters, with cable lengths longer than
4000 feet, as shown in Figure 16.
To minimize reflections, the line should be terminated at
both ends in its characteristic impedance, and stub
lengths off the main line should be kept as short as
possible (although the slew-rate-limited MAX1482 and
MAX1483 are more tolerant of imperfect termination
than standard RS-485 ICs).
Isolated RS -485
For isolated RS-485 applications, see the MAX253 and
MAX1480 data sheets.
20μA,
1
8
-Unit-Load, S lew-Rate-Limited
RS -485 Transc eivers
10
______________________________________________________________________________________
DI
RO
DE
RE
A
B
RE
RE
RE
RO
RO
RO
DI
DI
DI
DE
DE
DE
D
D
D
R
R
R
B
B
B
A
A
A
120
120
D
R
MAX1483
Figure 14. MAX1483 Typical Half-Duplex RS-485 Network
R
O
DI
RECEIVER
INPUT
V
Y
-V
Z
2
μ
s/div
5
0
1
0
-1
5
0
Figure 13. System Differential Voltage at 250kbps (125kHz)
Driving 4000 Feet of Cable
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAX1483 | Low Power, Slew-Rate-Limited RS-486 Transceivers(250kbps，半雙工，RS-485收發(fā)器) |
| MAX1482CPD | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1482CSD | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1483CSA | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
| MAX1482ESD | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX14820EETG+T | 制造商:Maxim Integrated Products 功能描述: |
| MAX14820ETG+ | 功能描述:輸入/輸出控制器接口集成電路 IO-Link Device Transceiver RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX14820ETG+T | 功能描述:輸入/輸出控制器接口集成電路 IO-Link Device Transceiver RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
| MAX14820EVKIT# | 功能描述:界面開(kāi)發(fā)工具 MAX14820/21 EVAL KIT RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類(lèi)型:RS-485 工具用于評(píng)估:ADM3485E 接口類(lèi)型:RS-485 工作電源電壓:3.3 V |
| MAX14821ETG+ | 功能描述:輸入/輸出控制器接口集成電路 NEW RoHS:否 制造商:Silicon Labs 產(chǎn)品: 輸入/輸出端數(shù)量: 工作電源電壓: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-64 封裝:Tray |
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