Programmable DTE/DCE,
+5V RS-232 Transceiver
MAX214
__________________________________________Typical Operating Characteristics
(V
CC
= 5V, C1 to C4 = 1µF, all transmitters loaded with 3kΩ in parallel with 2.5nF, T
A
= +25°C, unless otherwise noted.)
TRANSMITTER OUTPUT VOLTAGE (V
OL
)
vs. LOAD CAPACITANCE
AT DIFFERENT DATA RATES
MAX214-01
TRANSMITTER OUTPUT VOLTAGE (V
OH
)
vs. LOAD CAPACITANCE
AT DIFFERENT DATA RATES
MAX214-02
TRANSMITTER OUTPUT VOLTAGE (V
OH
)
vs. V
CC
POSITIVE SUPPLY VOLTAGE
1 TRANSMITTER LOADED
8.5
2 TRANSMITTERS LOADED
3 TRANSMITTERS LOADED
MAX214-03
MAX214-06
-5.5
-6.0
-6.5
V
OL
(V)
7.6
20kbps
7.4
7.2
64kbps
7.0
V
OH
(V)
6.8
6.6
120kbps
9.0
120kbps
-7.0
-7.5
64kbps
V
OH
(V)
8.0
7.5
20kbps
-8.0
-8.5
0
1000 2000 3000 4000 5000 6000 7000
LOAD CAPACITANCE (pF)
6.4
7.0
6.2
6.0
0
1000 2000 3000 4000 5000 6000 7000
LOAD CAPACITANCE (pF)
DATA RATE = 0kbps
6.5
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
V
CC
(V)
TRANSMITTER OUTPUT VOLTAGE (V
OL)
vs. POSITIVE SUPPLY VOLTAGE
MAX214-04
TRANSMITTER OUTPUT VOLTAGES
vs. V+, V- LOAD CURRENT
MAX214-05
SLEW RATE vs. LOAD CAPACITANCE
20
18
16
SLEW+
3 TRANSMITTERS LOADED
SLEW-
3 TRANSMITTERS LOADED
SLEW+
1 TRANSMITTER LOADED
-7.0
3 TRANSMITTERS LOADED
-7.5
2 TRANSMITTERS LOADED
1 TRANSMITTER LOADED
V
OL
(V)
-8.0
10
8
6
T
OUT
+, T
OUT
-
(V)
V+ AND V-
2 EQUALLY
0 LOADED
-2
-4
-6
ALL TRANSMITTERS UNLOADED, 0kbps
V- LOADED,
NO LOAD
ON V+
V+ LOADED,
NO LOAD
ON V-
SLEW RATE (V/µs)
4
14
12
10
8
-8.5
-9.0
DATA RATE = 0kbps
-9.5
4.5 4.6 4.7 4.8 4.9 5.0 5.1 5.2 5.3 5.4 5.5
V
CC
(V)
-8
-10
0
20
40
60
LOAD CURRENT (mA)
80
SLEW-
6 1 TRANSMITTER LOADED
4
0
2000
4000
6000
LOAD CAPACITANCE (pF)
4
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
