LTC1383
5V Low Power
RS232 Transceiver
FEATURES
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DESCRIPTIO
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Operates from a Single 5V Supply
Low Supply Current: I
CC
= 220碌A(chǔ)
ESD Protection Over
鹵10kV
Available in 16-Pin SOIC Narrow Package
Uses Small Capacitors: 0.1碌F
Operates to 120kBaud
Output Overvoltage Does Not Force Current
Back into Supplies
RS232 I/O Lines Can Be Forced to
鹵25V
Without Damage
Pin Compatible with LT1181A and MAX232A
The LTC1383 is an ultra-low power 2-driver/2-receiver
RS232 transceiver that operates from a single 5V
supply. The charge pump requires only four space-
saving 0.1碌F capacitors. The supply current (I
CC
) of the
transceiver is only 220碌A(chǔ) with driver outputs unloaded.
The LTC1383 is fully compliant with all data rate and
overvoltage RS232 specifications. The transceiver can
operate up to 120kbaud with a 2500pF, 3k鈩?load. Both
driver outputs and receiver inputs can be forced to
鹵25V
without damage and can survive multiple
鹵10kV
ESD strikes.
APPLICATI
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Notebook Computers
Palmtop Computers
TYPICAL APPLICATI
1
0.1碌F
3
4
0.1碌F
5
11
V
CC
300k
LOGIC INPUT
LOGIC OUTPUT
10
12
5k
9
5k
LTC1383
V
CC
300k
16
2
6
V
CC
= 5V
0.1碌F
Quiescent Supply Current vs Temperature
600
TEST CONDITION: V
CC
= 5V
500
QUIESCENT CURRENT (碌A(chǔ))
0.1碌F
400
300
200
100
0
鈥?0
QUIESCENT
CURRENT
LOGIC INPUT
14
232 OUTPUT
7
13
232 OUTPUT
232 INPUT
LOGIC OUTPUT
8
15
232 INPUT
0
LTC1383 鈥?TA01
U
20
40
TEMPERATURE (擄C)
60
80
LTC1383 鈥?TA02
UO
UO
1