+2.35V to +5.5V, 1µA, 2Tx/2Rx RS-232 Transceivers
with ±15kV ESD-Protected I/O and Logic Pins
Typical Operating Characteristics (continued)
(V
CC
= V
L
= +4.2V, C1 = 0.22µF, C2 = C3 = C4 = 1µF, C5 = 0.1µF parallel with 47µF, R
L
= 3kΩ, C
L
= 1000pF, data rate is 250kbps,
T
A
= +25°C, unless otherwise noted.)
MAX3381E
SLEW RATE vs. LOAD CAPACITANCE
MAX3380E toc04
MAX3380E/MAX3381E
SUPPLY CURRENT vs. LOAD CAPACITANCE
WHEN TRANSMITTING DATA
MAX3381E toc05
TRANSMITTER OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE (V
CC
FALLING)
TRANSMITTER OUTPUT VOLTAGE (V)
MAX3380E toc06
14
13
12
SLEW RATE (V/µs)
11
10
9
8
7
6
0
500
1000
1500
2000
2500
V
CC
= +2.5V
V
CC
= +4.2V
80
1 TRANSMITTER SWITCHING
70
SUPPLY CURRENT (mA)
60
50
40
30
20
10
0
20kbps
250kbps
460kbps
8
6
4
2
0
-2
-4
-6
V
OUT-
V
OUT+
3000
0
500
1000
1500
2000
2500
3000
2.5
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
3.5
4.5
SUPPLY VOLTAGE (V)
5.5
TRANSMITTER OUTPUT VOLTAGE
vs. SUPPLY VOLTAGE (V
CC
RISING)
MAX3380E toc07
SUPPLY CURRENT
vs. SUPPLY VOLTAGE (V
CC
FALLING)
1 TRANSMITTER SWITCHING
20
SUPPLY CURRENT (mA)
MAX3380E toc08
8
TRANSMITTER OUTPUT VOLTAGE (V)
6
4
2
0
-2
-4
-6
2.5
3.5
4.5
SUPPLY VOLTAGE (V)
V
OUT-
V
OUT+
25
15
10
5
0
5.5
2.5
3.5
4.5
5.5
SUPPLY VOLTAGE (V)
MAX3380E
DATASTREAM V
CC
= +4.2V
MAX3380E toc09
MAX3380E
DATASTREAM V
CC
= +2.5V
MAX3380E toc10
T_IN
5V/div
5V
0
T_IN
5V/div
5V
0
5V
T_OUT
5V/div
0
-5V
V
CC
= V
L
=
+2.5V
1µs/div
1µs/div
T_OUT
5V/div
5V
0
-5V
_______________________________________________________________________________________
5
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
