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ADM3483 Datasheet(PDF) 5 Page - Analog Devices

Part No. ADM3483
Description  3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers
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Maker  AD [Analog Devices]
Homepage  http://www.analog.com
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ADM3483 Datasheet(HTML) 5 Page - Analog Devices

 
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ADM3483/ADM3485/ADM3488/ADM3490/ADM3491
Rev. B | Page 5 of 20
TIMING SPECIFICATIONS—ADM3485/ADM3490/ADM3491
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 3.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Delay (tDD)
1
22
35
ns
RL = 60 Ω
(see Figure 10 and Figure 16)
Differential Output Transition Time (tTD)
3
8
25
ns
RL = 60 Ω
(see Figure 10 and Figure 16)
Propagation Delay, Low-to-High Level (tPLH)
7
22
35
ns
RL = 27 Ω
(see Figure 11 and Figure 17)
Propagation Delay, High-to-Low Level (tPHL)
7
22
35
ns
RL = 27 Ω
(see Figure 11 and Figure 17)
|tPLH – tPHL| Propagation Delay Skew1 (tPDS)
8
ns
RL = 27 Ω
(see Figure 11 and Figure 17)
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3485/
ADM3491 ONLY)
Output Enable Time to Low Level (tPZL)
45
90
ns
RL = 110 Ω
(see Figure 13 and Figure 19)
Output Enable Time to High Level (tPZH)
45
90
ns
RL = 110 Ω
(see Figure 12 and Figure 18)
Output Disable Time from High Level (tPHZ)
40
80
ns
RL = 110 Ω
(see Figure 12 and Figure 18)
Output Disable Time from Low Level (tPLZ)
40
80
ns
RL = 110 Ω
(see Figure 13 and Figure 19)
Output Enable Time from Shutdown to Low Level (tPSL)
650
900
ns
RL = 110 Ω
(see Figure 13 and Figure 19)
Output Enable Time from Shutdown to High Level (tPSH)
650
900
ns
RL = 110 Ω
(see Figure 12 and Figure 18)
1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.
TIMING SPECIFICATIONS—ADM3483/ADM3488
VCC = 3.3 V, TA = 25°C, unless otherwise noted.
Table 4.
Parameter
Min
Typ
Max
Unit
Test Conditions/Comments
DRIVER
Differential Output Delay (tDD)
600
900
1400
ns
RL = 60 Ω
(see Figure 10 and Figure 16)
Differential Output Transition Time (tTD)
400
700
1200
ns
RL = 60 Ω
(see Figure 10 and Figure 16)
Propagation Delay, Low-to-High Level (tPLH)
700
1000
1500
ns
RL = 27 Ω
(see Figure 11 and Figure 17)
Propagation Delay, High-to-Low Level (tPHL)
700
1000
1500
ns
RL = 27 Ω
(see Figure 11 and Figure 17)
|tPLH – tPHL| Propagation Delay Skew1 (tPDS)
100
ns
RL = 27 Ω
(see Figure 11 and Figure 17)
DRIVER OUTPUT ENABLE/DISABLE TIMES (ADM3483 ONLY)
Output Enable Time to Low Level (tPZL)
900
1300
ns
RL = 110 Ω
(see Figure 13 and Figure 19)
Output Enable Time to High Level (tPZH)
600
800
ns
RL = 110 Ω
(see Figure 12 and Figure 18)
Output Disable Time from High Level (tPHZ)
50
80
ns
RL = 110 Ω
(see Figure 12 and Figure 18)
Output Disable Time from Low Level (tPLZ)
50
80
ns
RL = 110 Ω
(see Figure 13 and Figure 19)
Output Enable Time from Shutdown to Low Level (tPSL)
1.9
2.7
μs
RL = 110 Ω
(see Figure 13 and Figure 19)
Output Enable Time from Shutdown to High Level (tPSH)
2.2
3.0
μs
RL = 110 Ω
(see Figure 12 and Figure 18)
1 Measured on |tPLH (Y) − tPHL (Y)| and |tPLH (Z) − tPHL (Z)|.


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