+5V-Powered, Multichannel RS-232
Drivers/Receivers
MAX220–MAX249
__________________________________________Typical Operating Characteristics
MAX220/MAX222/MAX232A/MAX233A/MAX242/MAX243
OUTPUT VOLTAGE vs. LOAD CURRENT
MAX220-01
AVAILABLE OUTPUT CURRENT
vs. DATA RATE
MAX220-02
MAX222/MAX242
ON-TIME EXITING SHUTDOWN
1µF CAPS
V+
V+, V- VOLTAGE (V)
+5V
+5V
0V
0V
1µF CAPS
0.1µF CAPS
V-
V-
500µs/div
-10V
0.1µF CAPS
SHDN
V+
MAX220-03
10
8
6
OUTPUT VOLTAGE (V)
4
2
0
-2
-4
-6
-8
-10
0
5
EITHER V+ OR V- LOADED
V
CC
= ±5V
NO LOAD ON
TRANSMITTER OUTPUTS
(EXCEPT MAX220, MAX233A)
V- LOADED, NO LOAD ON V+
0.1µF
1µF
11
10
OUTPUT CURRENT (mA)
9
8
7
6
5
ALL CAPS
0.1µF
ALL CAPS
1µF
V
CC
= +5.25V
OUTPUT LOAD CURRENT
FLOWS FROM V+ TO V-
+10V
0.1µF
1µF
V
CC
= +4.75V
V+ LOADED, NO LOAD ON V-
10
15
20
25
LOAD CURRENT (mA)
4
0
10
20
30
40
50
60
DATA RATE (kbits/sec)
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
