VH
VL
INPUT
1/8
ADM5170
+V
–V
RS232/RS423A
TRANSMISSION
ADM5180
VDD
VH
+
VL
1/8
ADM5180
–
VOUT
TIE TO GND FOR
RS232
VFAILSAFE
Figure 4. EIA-232/V.28 Data Transmission
VH
VL
INPUT
RS422A/V.11
LINE DRIVER
+V
–V
+
RS422
TRANSMISSION
–
+V
–V
VDD
VH
+
VL
1/8
ADM5180
–
VOUT
VFAILSAFE
Figure 5. RS-422A/V.11 Data Transmission
Typical Performance Characteristics
4.0
VDD = 5V
FS = 5V
3.8
VID = O/C
3.6
3.4
3.2
3.0
–40
–20
0
20
40
60
80
TEMPERATURE – °C
Figure 6. Supply Current vs. Temperature
5.5
TA = +25°C
FS = 0V
VID = O/C
5.3
5.1
4.9
4.7
4.5
3.35
3.40
IDD – mA
3.45
3.50
Figure 7. Supply Current vs. Supply Voltage
REV. 0
–5–