Datasheet
MAX3440E–MAX3444E
±15kV ESD-Protected, ±60V Fault-Protected,
10Mbps, Fail-Safe RS-485/J1708 Transceivers
6 _______________________________________________________________________________________
RECEIVER OUTPUT CURRENT
vs. OUTPUT LOW VOLTAGE
MAX3443E toc04
OUTPUT LOW VOLTAGE (V)
RECEIVER OUTPUT CURRENT (mA)
5.04.50.5
1.0
1.5 2.5 3.0 3.52.0 4.0
5
10
15
20
25
30
35
40
0
0
RECEIVER OUTPUT CURRENT
vs. OUTPUT HIGH VOLTAGE
MAX3443E toc05
OUTPUT HIGH VOLTAGE (V)
RECEIVER OUTPUT CURRENT (mA)
5.04.50.5
1.0
1.5 2.5 3.0 3.52.0 4.0
5
10
15
20
25
30
35
40
0
0
RECEIVER OUTPUT VOLTAGE
vs. TEMPERATURE
MAX3443E toc06
TEMPERATURE (°C)
RECEIVER OUTPUT VOLTAGE (V)
1109565 80-10 5 20 35 50-25
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
0
-40 125
V
OL
, I
OUT
= -10mA
V
OH
, I
OUT
= +10mA
DRIVER OUTPUT CURRENT
vs. DIFFERENTIAL OUTPUT VOLTAGE
MAX3443E toc07
DIFFERENTIAL OUTPUT VOLTAGE (V
A
- V
B
) (V)
DRIVER OUTPUT CURRENT (mA)
0.5
1.0
1.5 2.5 3.0 3.52.0
10
20
30
40
50
60
70
80
0
0
DIFFERENTIAL OUTPUT VOLTAGE
vs. TEMPERATURE
MAX3443E toc08
TEMPERATURE (°C)
DIFFERENTIAL OUTPUT VOLTAGE (V)
1109565 80-10 5 20 35 50-25
0.5
1.0
1.5
2.0
2.5
3.0
3.5
0
-40 125
R
L
= 100Ω
R
L
= 54Ω
MAX3441E/MAX3443E
Typical Operating Characteristics
(V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
MAX3440E toc01
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
1109580655035205-10-25
1
2
3
4
5
6
0
-40 125
DRIVER AND RECEIVER
ENABLED
MAX3441E/MAX3443E
DRIVER DISABLED,
RECEIVER ENABLED
NO-LOAD SUPPLY CURRENT
vs. TEMPERATURE
MAX3440E toc02
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
1109580655035205-10-25
4
8
12
16
20
24
0
-40 125
MAX3440E/MAX3442E/MAX3444E
DRIVER AND RECEIVER
ENABLED
DRIVER DISABLED,
RECEIVER ENABLED
SHUTDOWN SUPPLY CURRENT
vs. TEMPERATURE
MAX3443E toc03
TEMPERATURE (°C)
SUPPLY CURRENT (μA)
1109580655035205-10-25
0.1
1
10
0.01
-40 125
MAX3442E/MAX3443E/MAX3444E
A, B CURRENT
vs. A, B VOLTAGE (TO GROUND)
MAX3443E toc09
A, B VOLTAGE (V)
A, B CURRENT (μA)
4030 6050-50
-40
-30 -10 0 10-20 20
-800
-400
-1600
-2000
R
L
= 54Ω
-1200
0
400
800
1200
1600
2000
-60
DRIVER DISABLED,
RECEIVER ENABLED