MAX222C/D View Datasheet(PDF) - Maxim Integrated
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| MAX222C/D Datasheet PDF : 0 Pages | |||
MAX220–MAX249
+5V-Powered, Multichannel RS-232
Drivers/Receivers
__________________________________________Typical Operating Characteristics
MAX225/MAX244–MAX249
18
16
14
12
10
8
6
4
2
0
TRANSMITTER SLEW RATE
vs. LOAD CAPACITANCE
VCC = +5V
EXTERNAL POWER SUPPLY
1μF CAPACITORS
40kb/s DATA RATE
8 TRANSMITTERS
LOADED WITH 3kΩ
1
2
3
4
5
LOAD CAPACITANCE (nF)
OUTPUT VOLTAGE
vs. LOAD CURRENT FOR V+ AND V-
10
8
V+ AND V- LOADED
6
4 VCC = +5V
2 EXTERNAL CHARGE PUMP
1μF CAPACITORS
0 8 TRANSMITTERS
-2
DRIVING 5kΩ AND
2000pF AT 20kb/s
-4
EITHER V+ OR
V- LOADED
V- LOADED
-6 V+ AND V- LOADED
-8
V+ LOADED
-10
0 5 10 15 20 25 30 35
LOAD CURRENT (mA)
TRANSMITTER OUTPUT VOLTAGE (V+, V-)
vs. LOAD CAPACITANCE AT
DIFFERENT DATA RATES
9.0
VCC = +5V WITH ALL TRANSMITTERS DRIVEN
8.5
LOADED WITH 5kΩ
10kb/s
8.0
20kb/s
7.5
40kb/s
7.0
60kb/s
6.5
6.0
100kb/s
200kb/s
5.5
ALL CAPACITIORS 1μF
5.0
0
1
2
3
4
5
LOAD CAPACITANCE (nF)
10
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