1ꢀ5k EꢁD-ꢂrotected, +ꢀk Rꢁ-232 Transceivers
____________________________Typical Operating Characteristics (continued)
(Typical Operating Circuits, V
= +ꢀV, T = +2ꢀ°C, unless otherwise noted.)
A
CC
MAX205E–MAX208E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
MAX205E–MAX208E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX202E/MAX203E/MAX232E
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
20
18
16
14
7.5
5.0
2.5
0
14
12
10
8
20kbps
V
= +4.5V, R = 3kΩ
L
ALL TRANSMITTERS LOADED
DATA RATE = 120kbps
CC
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
120kbps
R = 3kΩ
L
240kbps
12
10
8
V
CC
= +4.5V, R = 3kΩ
L
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
RISE
FALL
-SLEW RATE
6
-2.5
-5.0
-7.5
6
240kbps
+SLEW RATE
4
120kbps
4
2
2
0
20kbps
4000
0
1000
2000
3000
4000 5000
0
1000
2000
3000
4000
5000
0
1000
2000
3000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
MAX205E–MAX208E
SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX205E–MAX208E
OUTPUT VOLTAGE vs. DATA RATE
10.0
50
45
40
35
30
25
20
V+
240kbps
120kbps
7.5
5.0
2.5
V
+
OUT
V
CC
= +4.5V, R = 3kΩ
L
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
0
-2.5
-5.0
20kbps
V
OUT-
V
CC
= +4.5V, R = 3kΩ
L
V-
1 TRANSMITTER AT FULL DATA RATE
4 TRANSMITTERS AT 1/8 DATA RATE
-7.5
-10.0
0
30 60 90 120 150 180 210 240
DATA RATE (kbps)
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
_______________________________________________________________________________________
5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
