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ADM3486EARZ-REEL7 参数 Datasheet PDF下载

ADM3486EARZ-REEL7图片预览
型号: ADM3486EARZ-REEL7
PDF下载: 下载PDF文件 查看货源
内容描述: 3.3 V , 【 15千伏ESD保护,半双工和全双工, RS - 485 / RS -422收发器 [3.3 V, 【15 kV ESD-Protected, Half- and Full-Duplex, RS-485/RS-422 Transceivers]
分类和应用:
文件页数/大小: 20 页 / 536 K
品牌: AD [ ANALOG DEVICES ]
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ADM3483E/ADM3486E/ADM3488E/ADM3490E/ADM3491E
TEST CIRCUITS AND SWITCHING CHARACTERISTICS
Y
R
L
/2
V
OD
R
L
/2
Z
06284-007
V
OM
R
L
= 27Ω
S1
V
OC
D
GENERATOR
1
50Ω
V
CC
V
OH
+ V
OL
2
OUT
C
L
= 15pF
2
Figure 7. Driver Differential Output Voltage and
Common-Mode Output Voltage
375Ω
V
CM
=
–7V TO +12V
06284-008
V
OM
=
1.5V
1
PPR = 250kHz, 50% DUTY CYCLE,
t
6.0ns, Z = 50Ω.
R
O
2
C INCLUDES PROBE AND STRAY CAPACITANCE.
L
D
V
CC
V
OD
R
L
375Ω
3V
IN
1.5V
1.5V
0V
Figure 8. Driver Differential Output Voltage with
Varying Common-Mode Voltage
Y
OUT
t
PLH
V
OM
t
PHL
V
OH
V
OM
V
OL
V
ID
0
R
t
PHL
V
OL
V
OH
06284-009
t
PLH
V
OH
06284-011
I
OL
(+)
I
OH
(–)
Z
OUT
V
OM
V
OM
V
OL
Figure 9. Receiver Output Voltage High and Output Voltage Low
Figure 11. Driver Propagation Delays
C
L
D
GENERATOR
1
50Ω
V
CC
C
L
= 15pF
2
R
L
=
OUT
60Ω
S1
0V OR 3V
D
C
L
= 50pF
2
GENERATOR
1
50Ω
V
OM
=
V
OH
+ V
OL
2
1.5V
OUT
R
L
= 110Ω
1
PPR = 250kHz, 50% DUTY CYCLE,
t
6.0ns, Z = 50Ω.
R
O
2
C INCLUDES PROBE AND STRAY CAPACITANCE.
L
1
PPR = 250kHz, 50% DUTY CYCLE,
t
6.0ns, Z = 50Ω.
R
O
2
C INCLUDES PROBE AND STRAY CAPACITANCE.
L
+3V
IN
+1.5V
+1.5V
0V
3V
IN
1.5V
1.5V
0V
+2V
06284-010
t
DD
50%
10%
90%
90%
t
DD
t
PZH
OUT
V
OM
t
PHZ
06284-012
OUT
50%
10%
0.25V
V
OH
0V
t
TD
t
TD
–2V
Figure 10. Driver Differential Output Delay and Transition Times
Figure 12. Driver Enable and Disable Times (t
PZH
, t
PSH
, t
PHZ
)
Rev. A | Page 9 of 20