adm3485 Analog Devices, Inc., adm3485 Datasheet - Page 11

• Manufacturer Part Number: adm3485
• Description: 3.3 V Slew Rate Limited, Half- And Full-duplex, Rs-485/rs-422 Transceivers
• Manufacturer: Analog Devices, Inc.

SWITCHING CHARACTERISTICS
Figure 16. Driver Differential Output Delay and Transition Times
OUT
OUT
OUT
A/Y
B/Z
IN
IN
10%
Figure 17. Driver Propagation Delays
50%
1.5V
OUT
1.5V
OUT
IN
IN
V
V
+0.25V
90%
OM
OM
t
t
t
DD
PLH
PHL
t
TD
1.5V
1.5V
1.5V
90%
t
t
t
PRSH
PRZH
PRHZ
50%
10%
V
V
OM
OM
t
t
t
DD
PHL
PLH
t
1.5V
TD
1.5V
OUT
+3V
0
≈ +2V
≈ –2V
3V
0V
V
V
V
V
IN
t
RPLH
OH
OL
OH
OL
Figure 21. Receiver Enable and Disable Times
Figure 20. Receiver Propagation Delays
+3V
0
V
0
+3V
0
V
0
OH
OH
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 OPEN
S2 CLOSED
S3 = +1.5V
1.5V
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
V
Rev. B | Page 11 of 20
OM
1.5V
OUT
OUT
IN
IN
V
+0.25V
OM
t
RPHL
Figure 18. Driver Enable and Disable Times (t
1.5V
OUT
Figure 19. Driver Enable and Disable Times (t
OUT
IN
IN
3V
0
V
0
t
CC
t
PZH
PRLZ
t
t
PRSL
PRZL
1.5V
1.5V
1.5V
V
1.5V
V
OM
t
OM
PSL
t
PHZ
1.5V
1.5V
+3V
0
V
V
+3V
0
V
V
CC
OL
CC
OL
S1 CLOSED
S2 OPEN
S3 = –1.5V
S1 CLOSED
S2 OPEN
S3 = –1.5V
t
PLZ
0.25V
0.25V
PZH
PZL
3V
0
V
V
, t
, t
3V
0
V
0
CC
OL
OH
PSH
PSL
, t
, t
PLZ
PHZ
)
)