LT1039-16_15 Datasheet, PDF (4/12 Pages) Linear Technology – RS232 Driver/Receiver with Shutdown

LT1039/LT1039-16
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current in Shutdown
1000
SUPPLY CURRENT MEASURED
INTO V_CC AND V ⁺
100
Driver Output Leakage
in Shutdown
1000
100
Receiver Output
Short-Circuit Current
100
OUTPUT SINKING
10
V_OUT
– 30V
OUTPUT SOURCING
10
10
1
1
–55 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1039 G04
1
–55 –25
V_OUT
30V
0 25 50 75
TEMPERATURE (°C)
100 125
1039 G05
0.1
–55 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1039 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)
1039 G07
Driver Output Swing vs Current
V⁺
– 0.2
OUTPUT HIGH
– 0.4
1.2
1.0
OUTPUT LOW
0.8
0.6
0.4
0.2
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)
1039 G08
Output Waveforms
Shutdown to Driver Output
RECEIVER 5V
OUTPUT 0V
10V
DRIVER ^0V
OUTPUT _{– 10V}
5V
INPUT
0V
V⁺ = 12V
V^– = –12V
V_CC = 5V
R_L = 3k
2µs/DIV
1039 G09
DRIVER OUTPUT CONNECTED TO RECEIVER INPUT
10V
DRIVER _5V
OUTPUT
0V
0V
DRIVER
OUTPUT
– 5V
– 10V
ON/OFF
INPUT
5V
0V
V⁺ = 12V
V^– = –12V
R_L = 3k
1ms/DIV
OUTPUT
HIGH
OUTPUT
LOW
1039 G10
1039fd
4