MAX231 Maxim, MAX231 Datasheet - Page 10

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MAX231

Manufacturer Part Number
MAX231
Description
+5V-Powered / Multichannel RS-232 Drivers/Receivers
Manufacturer
Maxim
Datasheet

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www.DataSheet4U.com
+5V-Powered, Multichannel RS-232
Drivers/Receivers
10
__________________________________________Typical Operating Characteristics
www.DataSheet4U.com
18
16
14
12
10
8
6
4
2
______________________________________________________________________________________
0
TRANSMITTER SLEW RATE
1
vs. LOAD CAPACITANCE
LOAD CAPACITANCE (nF)
EXTERNAL POWER SUPPLY
1µF CAPACITORS
2
3
40kb/s DATA RATE
8 TRANSMITTERS
LOADED WITH 3kΩ
V
4
CC
= 5V
5
MAX225/MAX244–MAX249
-10
10
-2
-4
-6
-8
8
6
4
2
0
0
V
EXTERNAL CHARGE PUMP
1µF CAPACITORS
8 TRANSMITTERS
DRIVING 5kΩ AND
2000pF AT 20kbits/sec
V+ AND V- LOADED
V+ AND V- LOADED
vs. LOAD CURRENT FOR V+ AND V-
CC
= 5V
5
10
OUTPUT VOLTAGE
LOAD CURRENT (mA)
15
20
EITHER V+ OR
V- LOADED
25
V- LOADED
V+ LOADED
30
35
8.5
8.0
7.5
7.0
6.5
6.0
5.5
9.0
5.0
TRANSMITTER OUTPUT VOLTAGE (V+, V-)
0
ALL CAPACITIORS 1µF
V
CC
vs. LOAD CAPACITANCE AT
DIFFERENT DATA RATES
1
= 5V WITH ALL TRANSMITTERS DRIVEN
LOAD CAPACITANCE (nF)
200kb/sec
2
3
LOADED WITH 5kΩ
100kb/sec
20kb/sec
60kb/sec
10kb/sec
40kb/sec
4
5

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