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| 型号： | MAX485 |
| 厂商： | Maxim Integrated Products, Inc. |
| 英文描述： | Low-Power, Slew-Rate-Limited RS-485Transceivers(2.5Mbps,半双工, RS-485收发器,直接LTC485代用件) |
| 中文描述： | 低功耗、限摆率、RS-485/RS-422收发器 |
| 文件页数： | 2/16页 |
| 文件大小： | 205K |
| 代理商： | MAX485 |
M
Low-Power, S lew-Rate-Limited
RS -485/RS -422 Transc eivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
CC
).............................................................12V
Supply Voltage (V
CC
+ 0.5V)
Driver Input Voltage (DI).............................-0.5V to (V
CC
+ 0.5V)
Driver Output Voltage (A, B)...................................-8V to +12.5V
Receiver Input Voltage (A, B).................................-8V to +12.5V
Receiver Output Voltage (RO).....................-0.5V to (V
CC
+0.5V)
Continuous Power Dissipation (T
A
= +70°C)
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ....727mW
14-Pin Plastic DIP (derate 10.00mW/°C above +70°C)..800mW
8-Pin SO (derate 5.88mW/°C above +70°C).................471mW
Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
14-Pin SO (derate 8.33mW/°C above +70°C)...............667mW
8-Pin μMAX (derate 4.1mW/°C above +70°C)..............830mW
8-Pin CERDIP (derate 8.00mW/°C above +70°C).........640mW
14-Pin CERDIP (derate 9.09mW/°C above +70°C).......727mW
Operating Temperature Ranges
MAX4_ _C_ _/MAX1487C_ A ...............................0°C to +70°C
MAX4_ _E_ _/MAX1487E_ A.............................-40°C to +85°C
MAX4_ _MJ _/MAX1487MJ A ...........................-55°C to +125°C
Storage Temperature Range.............................-65°C to +160°C
Lead Temperature (soldering, 10sec) .............................+300°C
DC ELECTRICAL CHARACTERISTICS
(V
CC
= 5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted.) (Notes 1, 2)
V
V
IN
= -7V
V
IN
= 12V
V
IN
= -7V
V
IN
= 12V
Input Current
(A, B)
I
IN2
V
TH
k
48
-7V
≤
V
CM
≤
12V, MAX487/MAX1487
R
IN
Receiver Input Resistance
-7V
≤
V
CM
≤
12V, all devices except
MAX487/MAX1487
R = 27
(RS-485), Figure 4
0.4V
≤
V
O
≤
2.4V
R = 50
(RS-422)
I
O
= 4mA, V
ID
= -200mV
I
O
= -4mA, V
ID
= 200mV
V
CM
= 0V
-7V
≤
V
CM
≤
12V
DE, DI, –—
DE = 0V;
V
CC
= 0V or 5.25V,
all devices except
MAX487/MAX1487
DE, DI, –—
MAX487/MAX1487,
DE = 0V, V
CC
= 0V or 5.25V
DE, DI, –—
R = 27
or 50
, Figure 4
R = 27
or 50
, Figure 4
R = 27
or 50
, Figure 4
CONDITIONS
k
12
μA
±1
I
OZR
Three-State (high impedance)
Output Current at Receiver
V
0.4
V
OL
Receiver Output Low Voltage
3.5
V
OH
Receiver Output High Voltage
mV
70
V
TH
Receiver Input Hysteresis
V
-0.2
0.2
Receiver Differential Threshold
Voltage
-0.2
mA
0.25
mA
-0.8
1.0
1.5
5
V
OD2
Differential Driver Output
(with load)
V
2
V
5
V
OD1
Differential Driver Output (no load)
μA
±2
I
IN1
Input Current
V
0.8
V
IL
Input Low Voltage
V
2.0
V
IH
Input High Voltage
V
0.2
V
OD
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
V
0.2
V
OD
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
Driver Common-Mode Output
Voltage
V
3
V
OC
UNITS
MIN
TYP
MAX
SYMBOL
PARAMETER
相关PDF资料 |
PDF描述 |
|---|---|
| MAX1487 | Low-Power, Slew-Rate-Limited RS-485/RS-422 Transceivers(2.5Mbps，半双工，RS-485/RS-422收发器) |
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| MAX492 | Dual, Micropower, Single-Supply Rail-to-Rail Op Amps(输入失调电压500μV,单电源满量程运放) |
| MAX494 | Quad, Micropower, Single-Supply Rail-to-Rail Op Amps(输入失调电压500μV,单电源满量程运放) |
相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4850ETE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850ETE+ | 功能描述:模拟开关 IC High-Bandwidth Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850ETE+T | 功能描述:模拟开关 IC High-Bandwidth Switch RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850ETE-T | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
| MAX4850HETE | 功能描述:模拟开关 IC RoHS:否 制造商:Texas Instruments 开关数量:2 开关配置:SPDT 开启电阻（最大值）:0.1 Ohms 切换电压（最大）: 开启时间（最大值）: 关闭时间（最大值）: 工作电源电压:2.7 V to 4.5 V 最大工作温度:+ 85 C 安装风格:SMD/SMT 封装 / 箱体:DSBGA-16 |
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