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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： | 2/12页 |
| 文件大小： | 142K |
| 代理商： | MAX1483 |
M
20μA,
1
8
-Unit-Load, S lew-Rate-Limited
RS -485 Transc eivers
2
_______________________________________________________________________________________
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V
CC
)...............................................................7V
Control Input Voltages (RE, DE).................-0.5V to (V
CC
+ 0.5V)
Driver Input Voltage (DI).............................-0.5V to (V
CC
+ 0.5V)
Driver Output Voltages ..........................................-7.5V to 12.5V
Receiver Input Voltages (A, B) ..............................-7.5V 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
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.
8-Pin SO (derate 5.88mW/°C above +70°C)..................471mW
14-Pin SO (derate 8.33mW/°C above +70°C)................667mW
8-Pin μMAX (derate 4.10mW/°C above +70°C).............330mW
Operating Temperature Ranges
MAX148_C_ _ .......................................................0°C to +70°C
MAX148_E_ _.....................................................-40°C to +85°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. Typical values are at T
A
= +25°C.) (Note 1)
V
V
IN
= -7V
V
IN
= 12V
V
IN
= -7V
V
IN
= 12V
Input Current
(A, B)
I
IN2
V
TH
k
96
-7V
≤
V
CM
≤
12V
R = 27
(RS-485), Figure 1
0.4V
≤
V
O
≤
2.4V
R = 50
(RS-422), Figure 1
I
O
= 4mA, V
ID
= -200mV
I
O
= -4mA, V
ID
= 200mV
V
CM
= 0V
-7V
≤
V
CM
≤
12V
DE, DI, –—
DE, DI, –—
MAX1483,
DE = 0V, V
CC
= 0V or 5.25V
R = 27
or 50
, Figure 1
R = 27
or 50
, Figure 1
R = 27
or 50
, Figure 1
MAX1482,
DE = 0V, V
CC
= 0V or 5.25V
CONDITIONS
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
75
V
TH
Receiver Input Hysteresis
V
-0.2
0.2
Receiver Differential Threshold
Voltage
-150
200
μA
-100
150
1.5
5
V
OD2
Differential Driver Output
(with load)
V
2
5
V
5
V
OD1
Differential Driver Output (no load)
μA
±2
I
IN1
Logic Input Current
V
0.8
V
IL
Logic Input Low 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
R
IN
Receiver Input Resistance
Note 1:
All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device
ground unless otherwise specified.
DE, DI, –—
V
2.0
V
IH
Logic Input High Voltage
MAX1482 only,
-7V < V
Y and
V
Z
< 12V
μA
±50
I
OZD
Three-State (high impedance)
Output Current at Driver
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