20µA,
1
⁄
8
-Unit-Load, Slew-Rate-Limited
RS-485 Transceivers
MAX1482/MAX1483
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
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
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.
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)
PARAMETER
Differential Driver Output (no load)
Differential Driver Output
(with load)
Change in Magnitude of Driver
Differential Output Voltage for
Complementary Output States
Driver Common-Mode Output
Voltage
Change in Magnitude of Driver
Common-Mode Output Voltage
for Complementary Output States
Three-State (high impedance)
Output Current at Driver
Logic Input High Voltage
Logic Input Low Voltage
Logic Input Current
Input Current
(A, B)
Receiver Differential Threshold
Voltage
Receiver Input Hysteresis
Receiver Output High Voltage
Receiver Output Low Voltage
Three-State (high impedance)
Output Current at Receiver
Receiver Input Resistance
SYMBOL
V
OD1
V
OD2
∆V
OD
V
OC
∆V
OD
R = 50Ω (RS-422), Figure 1
R = 27Ω (RS-485), Figure 1
R = 27Ω or 50Ω, Figure 1
R = 27Ω or 50Ω, Figure 1
R = 27Ω or 50Ω, Figure 1
MAX1482 only,
-7V < V
Y and
V
Z
< 12V
––
—
DE, DI, RE
––
—
DE, DI, RE
––
—
DE, DI, RE
MAX1482,
DE = 0V, V
CC
= 0V or 5.25V
MAX1483,
DE = 0V, V
CC
= 0V or 5.25V
-7V
≤
V
CM
≤
12V
V
CM
= 0V
I
O
= -4mA, V
ID
= 200mV
I
O
= 4mA, V
ID
= -200mV
0.4V
≤
V
O
≤
2.4V
-7V
≤
V
CM
≤
12V
96
3.5
0.4
±1
V
IN
= 12V
V
IN
= -7V
V
IN
= 12V
V
IN
= -7V
-0.2
75
2
1.5
CONDITIONS
MIN
TYP
MAX
5
5
5
0.2
3
0.2
UNITS
V
V
V
V
V
I
OZD
V
IH
V
IL
I
IN1
±50
2.0
0.8
±2
150
-100
200
-150
0.2
µA
V
V
µA
I
IN2
µA
V
TH
∆V
TH
V
OH
V
OL
I
OZR
R
IN
V
mV
V
V
µA
kΩ
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.
2
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
