Datasheet

SN75C189, SN75C189A
QUADRUPLE LOW-POWER LINE RECEIVERS
SLLS041G – OCTOBER 1988 – REVISED JANUARY 2000
6
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 5
SN75C189
INPUT THRESHOLD VOLTAGE (POSITIVE GOING)
vs
FREE-AIR TEMPERATURE
– Input Threshold Voltage – V
T
A
– Free-Air Temperature – °C
V
IT+
V
CC
= 5.5 V
1.5
1.4
1.3
1.2
1.1
0 20406080100
Figure 6
SN75C189A
INPUT THRESHOLD VOLTAGE (POSITIVE GOING)
vs
FREE-AIR TEMPERATURE
T
A
– Free-Air Temperature – °C
V
CC
= 5.5 V
– Input Threshold Voltage – V
V
IT+
0 20406080100
2.4
2.2
2
1.8
1.6
1.4
1.2
Figure 7
SN75C189
INPUT THRESHOLD VOLTAGE (NEGATIVE GOING)
vs
FREE-AIR TEMPERATURE
T
A
– Free-Air Temperature – °C
V
CC
= 5.5 V
– Input Threshold Voltage – V
V
IT–
1.2
1.1
1
0.9
0.8
0 20406080100
Figure 8
SN75C189A
INPUT THRESHOLD VOLTAGE (NEGATIVE GOING)
vs
FREE-AIR TEMPERATURE
T
A
– Free-Air Temperature – °C
V
CC
= 5.5 V
– Input Threshold Voltage – V
V
IT–
0 20406080100
1.15
1.1
1.05
1
0.95
0.9
0.85