LT1039A_15 Datasheet, PDF (4/14 Pages) Linear Technology – Triple RS232 Driver/Receiver with Shutdown

LT1039A/LT1039A-16
Typical Performance Characteristics
Driver Output Short-Circuit Current
50
45
40
SINKING
35
30
25
SOURCING
20
15
10
5
0
–55 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1039A G01
Supply Current in Shutdown
1000
SUPPLY CURRENT MEASURED
INTO V_CC AND V ⁺
Receiver Input Thresholds
3.00
2.75
2.50
2.25
INPUT HIGH
2.00
1.75
1.50
1.25
INPUT LOW
1.00
0.75
0.50
–55 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1039A G02
Driver Output Leakage
in Shutdown
1000
100
100
10
1
–55 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1039A G04
V_OUT
– 30V
10
1
–55 –25
V_OUT
30V
0 25 50 75
TEMPERATURE (°C)
100 125
1039A G05
ON/OFF Pin Thresholds
5.0
4.5
4.0
3.5
3.0
2.5
2.0
MINIMUM ON VOLTAGE
1.5
1.0
MINIMUM OFF VOLTAGE
0.5
0
–55 –25
0 25 50 75 100 125
TEMPERATURE (°C)
1039A G03
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
4
Driver Output Swing vs Current
V⁺
Output Waveforms
– 0.4
RECEIVER 5V
– 0.8
OUTPUT _0V
– 1.2
10V
– 1.6
DRIVER
OUTPUT
0V
– 2.0
–10V
INPUT ^5V
1.2
0V
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)
V⁺ = 12V
V^– = –12V
V_CC = 5V
R_L = 3k
2µs/DIV
1039A G09
DRIVER OUTPUT CONNECTED TO RECEIVER INPUT
1039A G08
1039afb
For more information www.linear.com/1039