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参数资料
| 型号： | MAX1483 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low Power, Slew-Rate-Limited RS-486 Transceivers(250kbps，半双工，RS-485收发器) |
| 中文描述： | 20µA、1/8单位负载、限摆率、RS-485收发器 |
| 文件页数： | 10/12页 |
| 文件大小： | 142K |
| 代理商： | MAX1483 |
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
相关PDF资料 |
PDF描述 |
|---|---|
| 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 |
| MAX1483EPA | 20A, 1.8-Unit-Load, Slew-Rate-Limited RS-485 Transceivers |
相关代理商/技术参数 |
参数描述 |
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| MAX14830ETM+ | 功能描述:UART 接口集成电路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX14830ETM+T | 功能描述:UART 接口集成电路 Quad Serial UART w/128-Word FIFOs RoHS:否 制造商:Texas Instruments 通道数量:2 数据速率:3 Mbps 电源电压-最大:3.6 V 电源电压-最小:2.7 V 电源电流:20 mA 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:LQFP-48 封装:Reel |
| MAX14830EVKIT# | 功能描述:界面开发工具 MAX14830 Eval Kit RoHS:否 制造商:Bourns 产品:Evaluation Boards 类型:RS-485 工具用于评估:ADM3485E 接口类型:RS-485 工作电源电压:3.3 V |
| MAX14830EVKIT+ | 制造商:Maxim Integrated Products 功能描述:QUAD UART EV-KIT WITH IO-LINK AND MULTIPROTOCOL - Boxed Product (Development Kits) |
| MAX1483C/D+ | 功能描述:RS-485接口IC low-power transceivers for RS-485 and RS-422 communication RoHS:否 制造商:Texas Instruments 数据速率:250 Kbps 工作电源电压:3.3 V 电源电流:750 uA 工作温度范围:- 40 C to + 125 C 安装风格:SMD/SMT 封装 / 箱体:SOIC-8 封装:Tube |
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