
±15kV ESD-Protected, 1A, 3.0V to 5.5V, 250kbps,
RS-232 Transceivers with AutoShutdown
Typical Operating Characteristics (continued)
(VCC = +3.3V, 250kbps data rate, 0.1F capacitors, all transmitters loaded with 3k and CL, TA = +25°C, unless otherwise noted.)
-6
-5
-4
-3
-2
-1
0
1
2
3
4
5
6
0
MAX3243E
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3224E-04
LOAD CAPACITANCE (pF)
TRANSMITTER
OUTPUT
VOLTAGE
(V)
2000
3000
1000
4000
5000
1 TRANSMITTER AT 250kbps
2 TRANSMITTERS AT 15.6kbps
VOUT+
VOUT-
0
4
2
8
6
12
10
14
0
1000
2000
3000
4000
5000
MAX3243E
SLEW RATE vs. LOAD CAPACITANCE
MAX3243E-05
LOAD CAPACITANCE (pF)
SLEW
RATE
(V/
s)
0
30
20
10
40
50
60
0
2000
1000
3000
4000
5000
MAX3243E
OPERATING SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3243E-06
LOAD CAPACITANCE (pF)
SUPPLY
CURRENT
(mA)
250kbps
120kbps
20kbps
T1 TRANSMITTING AT 250kbps
T2 (MAX3223E) TRANSMITTING AT 15.6kbps
0
5
10
15
20
25
30
35
40
45
0
2000
1000
3000
4000
5000
MAX3221E/MAX3223E
OPERATING SUPPLY CURRENT
vs. LOAD CAPACITANCE
MAX3224E-03
LOAD CAPACITANCE (pF)
SUPPLY
CURRENT
(mA)
250kbps
120kbps
20kbps
T1 TRANSMITTING AT 250kbps
T2 (MAX3223E) TRANSMITTING AT 15.6kbps
Maxim Integrated
5
MAX3221E/MAX3223E/MAX3243E