Datasheet

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TYPICAL CHARACTERISTICS
Input Threshold Voltage − V
INPUT THRESHOLD VOLTAGE
vs
FREE-AIR TEMPERATURE
T
A
− Free-Air Temperature − °C
V
T
−
V
T
+
2.4
2.2
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
010203040506070
INPUT THRESHOLD VOLTAGE
vs
SUPPLY VOLTAGE
V
CC
− Supply Voltage − V
Input Threshold Voltage − V
V
T
−
V
T
+
2
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
2345678910
0
0.2
MAXIMUM SUPPLY VOLTAGE
vs
FREE-AIR TEMPERATURE
T
A
− Free-Air Temperature − °C
R
L
≥ 3 kΩ
(from each output to GND)
V − Supply Voltage − V
CC
16
14
12
10
8
6
4
2
0
0 10203040506070
Amplitude − V
NOISE REJECTION
C
C
= 300 pF
V
CC
= 5 V
T
A
= 25°C
See Note A
t
w
− Pulse Duration − ns
C
C
= 500 pF
C
C
= 12 pF
C
C
= 100 pF
NOTE A: This figure shows the maximum amplitude of a positive-going
pulse that, starting from 0 V, will not cause a change in the
output level.
6
5
4
3
2
1
0
10 40 100 400 1000 4000 10000
SN75185
MULTIPLE RS-232 DRIVERS AND RECEIVERS
SLLS181D–DECEMBER 1994 – REVISED JANUARY 2006
ABC
RECEIVER SECTION
Figure 11. Figure 12.
Figure 13. Figure 14.
11