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ADM3491EARZ-REEL7 其他数据使用手册 - ADI（亚德诺）
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ADI（亚德诺）
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接口芯片
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SOIC-14
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
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ADM3491EARZ-REEL7数据手册
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ADM3053 Data Sheet
Rev. D | Page 4 of 20
TIMING SPECIFICATIONS
All voltages are relative to their respective ground; 3.0 V ≤ V
IO
≤ 5.5 V; 4.5 V ≤ V
CC
≤ 5.5 V. T
A
= −40°C to +85°C, unless otherwise noted.
Table 2.
Parameter Symbol Min Typ Max Unit Test Conditions/Comments
DRIVER
Maximum Data Rate 1 Mbps
Propagation Delay from TxD On to Bus Active t
onTxD
90 ns R
S
= 0 Ω; see Figure 2 and Figure 24
R
L
= 60 Ω, C
L
= 100 pF
Propagation Delay from TxD Off to Bus Inactive t
offTxD
120 ns R
S
= 0 Ω; see Figure 2 and Figure 24
R
L
= 60 Ω, C
L
= 100 pF
RECEIVER
Propagation Delay from TxD On to Receiver Active t
onRxD
200 ns R
S
= 0 Ω; see Figure 2
630 ns R
S
= 47 kΩ; see Figure 2
Propagation Delay from TxD Off to Receiver Inactive
1
t
offRxD
250 ns R
S
= 0 Ω; see Figure 2
480 ns R
S
= 47 kΩ; see Figure 2
CANH, CANL SLEW RATE |SR| 7 V/µs R
S
= 47 kΩ
1
Guaranteed by design and characterization.
SWITCHING CHARACTERISTICS
0.25V
IO
0.9V
V
OR
V
OD
0V
0V
V
IO
0.5V
0.4V
V
DIFF
V
RxD
V
IO
V
TxD
V
IO
– 0.3V
0.7V
IO
V
DIFF
= V
CANH
– V
CANL
t
onTxD
t
offTxD
t
onRxD
t
offRxD
09293-002
Figure 2. Driver Propagation Delay, Rise/Fall Timing
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