Datasheet

ADM485
Rev. F | Page 10 of 16
TEST CIRCUITS
V
OD
V
OC
R
R
0
0078-020
Figure 20. Driver Voltage Measurement
V
OD3
V
TST
60Ω
375Ω
375
Ω
00078-021
Figure 21. Driver Voltage Measurement
R
LDIFF
A
B
C
L1
C
L2
00078-022
Figure 22. Driver Propagation Delay
0V OR 3V
DE IN
S2S1
V
OUT
R
L
V
CC
C
L
00078-023
A
B
DE
Figure 23. Driver Enable/Disable
A
V
OUT
C
L
00078-024
B
RE
Figure 24. Receiver Propagation Delay
S2
S1
V
CC
00078-025
C
L
V
OUT
RE
RE
IN
+
1.5
V
–
1.5
V
R
L
Figure 25. Receiver Enable/Disable