3.0V, ±15kV ESD-Protected RS-232
Transceiver for PDAs and Cell Phones
MAX3386E
Typical Operating Characteristics
(V
CC
= V
L
= +3.3V, T
A
= +25°C, unless otherwise noted.)
TRANSMITTER OUTPUT VOLTAGE
vs. LOAD CAPACITANCE
MAX3386E toc 01
SLEW RATE vs. LOAD CAPACITANCE
14
12
SLEW RATE (V/µs)
SLEW RATE -
10
8
6
4
SLEW RATE +
MAX3386E toc 02
7.5
5.0
OUTPUT VOLTAGE (V)
2.5
0
-2.5
-5.0
-7.5
0
1000
2000
3000
4000
DATA RATE = 250kbps
LOAD = 3kΩ IN PARALLEL WITH C
L
16
2
0
5000
0
1000
2000
3000
4000
5000
LOAD CAPACITANCE (pF)
LOAD CAPACITANCE (pF)
TRANSMITTER OUTPUT VOLTAGE
vs. DATA RATE
MAX3386E toc 03
SUPPLY CURRENT vs. LOAD CAPACITANCE
LOAD = 3kΩ,
ONE TRANSMITTER
SWITCHING AT DATA
RATE, OTHER
250kbps
TRANSMITTERS
AT 1/8 DATA RATE
120kbps
MAX3386E toc 04
7.5
5.0
OUTPUT VOLTAGE (V)
2.5
0
-2.5
-5.0
-7.5
0
50
100
150
200
LOAD = 3kΩ, 1000pF
ONE TRANSMITTER
SWITCHING AT DATA
RATE, OTHER
TRANSMITTERS
AT 1/8 DATA RATE
60
50
SUPPLY CURRENT (mA)
40
30
20
10
0
20kbps
250
0
1000
2000
3000
4000
5000
DATA RATE (kbps)
LOAD CAPACITANCE (pF)
4
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
