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