LT1039A_01 Datasheet, PDF (4/12 Pages) Linear Technology – Triple RS232 Driver/Receiver with Shutdown

LT1039A/LT1039A-16
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current in Shutdown
1000
SUPPLY CURRENT MEASURED
INTO V_CC AND V ⁺
100
10
1
–55 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1039A G04
Driver Output Leakage
in Shutdown
1000
100
V_OUT
– 30V
10
1
–55 –25
V_OUT
30V
0 25 50 75
TEMPERATURE (°C)
100 125
1039A G05
Receiver Output
Short-Circuit Current
60
55
50
SINKING
45
40
35
30
SOURCING
25
20
15
10
5
0
–55 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1039A G06
ON/OFF Pin Current vs Voltage
40
35
30
25
20
15
10
5
0
–5
– 10
0
1
2
3
4
5
INPUT VOLTAGE (V)
1039A G07
Driver Output Swing vs Current
V⁺
– 0.4
– 0.8
– 1.2
– 1.6
– 2.0
1.2
0.8
0.4
V^–
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0
OUTPUT CURRENT (mA)
1039A TA02
Output Waveforms
Shutdown to Driver Output
RECEIVER 5V
OUTPUT 0V
10V
DRIVER
OUTPUT ^0V
– 10V
INPUT ^5V
0V
V⁺ = 12V
V^– = –12V
V_CC = 5V
R_L = 3k
2µs/DIV
1039A G09
DRIVER OUTPUT CONNECTED TO RECEIVER INPUT
10V
DRIVER
OUTPUT
5V
0V
0V
DRIVER
OUTPUT
– 5V
– 10V
ON/OFF
INPUT
5V
0V
V⁺ = 12V
V^– = –12V
R_L = 3k
2µs/DIV
OUTPUT
HIGH
OUTPUT
LOW
1039A G10
1039afa
4