Fa il-S a fe , Hig h -S p e e d (1 0 Mb p s ),
S le w -Ra t e -Lim it e d RS -4 8 5 /RS -4 2 2 Tra n s c e ive rs
ABSOLUTE MAXIMUM RATINGS
Supply Voltage (V ) ............................................................+7V
Continuous Power Dissipation
CC
Control Input Voltage (RE, DE)...................-0.3V to (V + 0.3V)
Special Input Voltage
8-Pin Plastic DIP (derate 9.09mW/°C above +70°C) ...727mW
8-Pin SO (derate 5.88mW/°C above +70°C)................471mW
14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ....800mW
14-Pin SO (derate 8.33mW/°C above +70°C)..............667mW
Operating Temperature Ranges
MAX308_C_ _ .....................................................0°C to +70°C
MAX308_E_ _...................................................-40°C to +85°C
Storage Temperature Range .............................-65°C to +150°C
Lead Temperature (soldering, 10sec) .............................+300°C
CC
(H/F, SRL, TXP, RXP)..................................-0.3V to (V + 0.3V)
CC
Driver Input Voltage (DI).............................-0.3V to (V + 0.3V)
CC
Driver Output Voltage (A, B, Y, Z)........................................±13V
Receiver Input Voltage (A, B) ..............................................±13V
Receiver Input Voltage, Full Duplex (A, B) ..........................±25V
Receiver Output Voltage (RO)....................-0.3V to (V + 0.3V)
CC
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 = +5V ± 5%, T = T
to T , unless otherwise noted. Typical values are at V = +5V and T = +25°C.) (Note 1)
MAX CC A
CC
A
MIN
PARAMETER
SYMBOL
CONDITIONS
MIN
TYP
MAX
UNITS
–MAX3089
DRIVER
Differential Driver Output
(no load)
V
Figure 5
5
V
V
OD1
Figure 5, R = 50Ω (RS-422)
Figure 5, R = 27Ω (RS-485)
2.0
1.5
Differential Driver Output
V
OD2
Change in Magnitude of
Differential Output Voltage
(Note 2)
∆V
Figure 5, R = 50Ω or R = 27Ω
0.2
V
OD
Driver Common-Mode Output
Voltage
V
Figure 5, R = 50Ω or R = 27Ω
Figure 5, R = 50Ω or R = 27Ω
3
V
V
OC
Change In Magnitude of
Common-Mode Voltage (Note 2)
∆V
0.2
OC
Input High Voltage
Input Low Voltage
V
2.0
10
V
V
DE, DI, RE, H/F, TXP, RXP
DE, DI, RE, H/F, TXP, RXP
IH1
V
IL1
0.8
MAX3080–MAX3085, and MAX3089 with
SRL = V or unconnected
CC
DI Input Hysteresis
SRL Input Current
V
HYS
100
mV
µA
I
IN1
±2
40
DE, DI, RE
I
IN2
H/F, TXP, RXP, internal pull-down
Input High Voltage
Input Middle Voltage
Input Low Voltage
V
SRL
V
- 0.8
V
V
V
IH2
CC
V
IM2
SRL (Note 3)
SRL
0.4V
0.6V
CC
CC
V
IL2
0.8
75
SRL = V
CC
SRL Input Current
I
IN3
µA
µA
µA
SRL = GND (Note 3)
-75
V
= 12V
= -7V
= 12V
= -7V
125
-75
IN
Input Current (A and B)
Full Duplex
DE = GND,
V
CC
I
IN4
= GND or 5.25V
V
IN
V
IN
125
Output Leakage (Y and Z)
Full Duplex
DE = GND,
= GND or 5.25V
I
O
V
CC
V
IN
-100
-250
-7V ≤ V
≤ V
CC
OUT
Driver Short-Circuit Output
Current (Note 4)
V
OD1
250
mA
0V ≤ V
≤ 12V
OUT
±25
0V ≤ V
≤ V
CC
OUT
2
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
