參數資料
型號: ADM3490ARZ
廠商: ANALOG DEVICES INC
元件分類: 通用總線功能
英文描述: 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
中文描述: LINE TRANSCEIVER, PDSO8
封裝: LEAD FREE, MS-012AA, SOIC-8
文件頁數: 11/20頁
文件大小: 315K
代理商: ADM3490ARZ
ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
SWITCHING CHARACTERISTICS
Rev. B | Page 11 of 20
IN
OUT
1.5V
1.5V
+3V
0
+2V
–2V
t
DD
t
DD
t
TD
t
TD
50%
10%
50%
10%
90%
90%
0
Figure 16. Driver Differential Output Delay and Transition Times
3V
0V
V
OH
V
OL
V
OH
V
OL
V
OM
V
OM
V
OM
V
OM
IN
A/Y
OUT
B/Z
OUT
1.5V
1.5V
t
PLH
t
PHL
t
PHL
t
PLH
0
Figure 17. Driver Propagation Delays
0
V
OH
0
3V
1.5V
1.5V
0.25V
IN
OUT
V
OM
t
PZH
t
PHZ
0
Figure 18. Driver Enable and Disable Times (t
PZH
, t
PSH
, t
PHZ
)
V
OL
V
CC
0
3V
0.25V
IN
OUT
1.5V
1.5V
t
PSL
t
PLZ
V
OM
0
Figure 19. Driver Enable and Disable Times (t
PZL
, t
PSL
, t
PLZ
)
0
3V
0
V
CC
0
IN
OUT
V
OM
V
OM
1.5V
1.5V
t
RPHL
t
RPLH
Figure 20. Receiver Propagation Delays
+3V
0
V
OH
0
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 CLOSED
S2 OPEN
S3 = –1.5V
S1 OPEN
S2 CLOSED
S3 = +1.5V
S1 CLOSED
S2 OPEN
S3 = –1.5V
+3V
0
V
CC
V
OL
+3V
0
V
CC
V
OL
+3V
0
V
OH
0
1.5V
1.5V
1.5V
IN
OUT
IN
OUT
IN
OUT
IN
OUT
t
PRZL
t
PRSL
t
PRLZ
t
PRHZ
+0.25V
+0.25V
1.5V
1.5V
1.5V
t
PRZH
t
PRSH
0
Figure 21. Receiver Enable and Disable Times
相關PDF資料
PDF描述
ADM3491AR-REEL 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
ADM3491AR-REEL7 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
ADM3491ARZ 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
ADM3491ARZ-REEL 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
ADM3491ARZ-REEL7 3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
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