Datasheet
MAX3040 toc06
OUTPUT LOW VOLTAGE (V)
OUTPUT CURRENT (mA)
54-6 -5 -4 -2 -1 0 1 2-3 3
10
20
30
40
50
60
70
80
0
-7 6
OUTPUT CURRENT vs. TRANSMITTER
OUTPUT HIGH VOLTAGE
0.7
0.8
1.0
0.9
1.1
1.2
02010 30 40 50 60 70
SUPPLY CURRENT vs. TEMPERATURE
MAX3040 toc04
TEMPERATURE (°C)
SUPPLY CURRENT (mA)
V
CC
= 5.25V
V
CC
= 5V
V
CC
= 4.75V
NO LOAD
NO SWITCHING
100 1000
0
10
5
15
20
25
35
30
40
45
0.1 1 10
MAX3040/MAX3043
SUPPLY CURRENT vs. DATA RATE
MAX3040 toc01
DATA RATE (kbps)
SUPPLY CURRENT (mA)
NO LOAD
ALL FOUR TRANSMITTERS
SWITCHING
40
0
0.1 1 10 100 1000 10,000
MAX3041/MAX3044
SUPPLY CURRENT vs. DATA RATE
MAX3040 toc02
DATA RATE (kbps)
SUPPLY CURRENT (mA)
10
5
20
15
35
30
25
NO LOAD
ALL FOUR TRANSMITTERS
SWITCHING
MAX3042B/MAX3045B
SUPPLY CURRENT vs. DATA RATE
DATA RATE (kbps)
0.1 100 1000 10,0001 10 100,000
SUPPLY CURRENT (mA)
60
0
10
20
30
50
40
MAX3040 toc03
NO LOAD
ALL FOUR TRANSMITTERS
SWITCHING
0
20
10
40
30
60
50
70
0426810
OUTPUT CURRENT vs. TRANSMITTER
OUTPUT LOW VOLTAGE
MAX3040 toc06
OUTPUT LOW VOLTAGE (V)
OUTPUT CURRENT (mA)
MAX3040–MAX3045
±10kV ESD-Protected, Quad 5V RS-485/RS-422
Transmitters
_______________________________________________________________________________________ 5
Typical Operating Characteristics
(V
CC
= +5V, T
A
= +25°C, unless otherwise noted.)
0
20
10
40
30
60
50
70
021345
OUTPUT CURRENT
vs. DIFFERENTIAL OUTPUT VOLTAGE
MAX3040 toc07
DIFFERENTIAL OUTPUT VOLTAGE (V)
OUTPUT CURRENT (mA)
2.10
2.20
2.15
2.35
2.30
2.25
2.50
2.45
2.40
2.55
0203010 40 50 60 70
TRANSMITTER DIFFERENTIAL OUTPUT
VOLTAGE vs. TEMPERATURE
MAX3040 toc08
TEMPERATURE (°C)
DIFFERENTIAL OUTPUT VOLTAGE (V)
R
DIFF
= 54Ω