adm3485e Analog Devices, Inc., adm3485e Datasheet - Page 4

• Manufacturer Part Number: adm3485e
• Description: ?15 Kv Esd-protected, 3.3 V,12 Mbps, Eia Rs-485/rs-422 Transceiver
• Manufacturer: Analog Devices, Inc.

ADM3485E
TIMING SPECIFICATIONS
V
Table 2.
Parameter
DRIVER
RECEIVER
1
The transceivers are put into shutdown mode by bringing the RE high and the DE low. If the inputs are in this state for less than 80 ns, the parts are guaranteed not to
enter shutdown. If the parts are in this state for 300 ns or more, the parts are guaranteed to enter shutdown.
CC
Maximum Data Rate
Differential Output Delay
Differential Output Transition Time
Propagation Delay
|t
Enable/Disable Timing
Propagation Delay
|t
Enable/Disable Timing
PLH
RPLH
= 3.3 V, T
From Low to High Level
From High to Low Level
Enable Time to Low Level
Enable Time to High Level
Disable Time from Low Level
Disable Time from High Level
Enable Time from Shutdown to Low Level
Enable Time from Shutdown to High Level
From Low to High Level
From High to Low Level
Enable Time to Low Level
Enable Time to High Level
Disable Time from Low Level
Disable Time from High Level
Enable Time from Shutdown to Low Level
Enable Time from Shutdown to High Level
Time to Shutdown
− t
− t
PHL
RPHL
| Propagation Delay Skew
| Propagation Delay Skew
A
= 25°C.
1
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
DD
TD
PLH
PHL
PDS
PZL
PZH
PLZ
PHZ
PSL
PSH
RPLH
RPHL
RPDS
RPZL
RPZH
RPLZ
RPHZ
RPSL
RPSH
SHDN
Rev. C | Page 4 of 16
Min
12
1
3
7
7
25
25
80
Typ
15
22
11
23
23
–1.4
42
42
35
35
650
650
62
62
6
25
25
25
25
720
720
190
Max
35
25
35
35
±8
90
90
80
80
900
900
90
90
±10
50
50
45
45
1400
1400
300
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Test Conditions/Comments
R
R
R
R
R
R
R
R
R
R
R
V
V
V
C
C
C
C
C
C
L
L
L
L
L
L
L
L
L
L
L
ID
ID
ID
L
L
L
L
L
L
= 60 Ω, C
= 60 Ω, C
= 27 Ω (see Figure 7)
= 27 Ω (see Figure 7)
= 27 Ω (see Figure 7)
= 110 Ω (see Figure 9)
= 110 Ω (see Figure 8)
= 110 Ω (see Figure 9)
= 110 Ω (see Figure 8)
= 110 Ω (see Figure 9)
= 110 Ω (see Figure 8)
= 15 pF (see Figure 11)
= 15 pF (see Figure 11)
= 15 pF (see Figure 11)
= 15 pF (see Figure 11)
= 15 pF (see Figure 11)
= 15 pF (see Figure 11)
= 0 V to 3.0 V, C
= 0 V to 3.0 V, C
= 0 V to 3.0 V, C
L1
L1
= C
= C
L2
L2
L
L
L
= 15 pF (see Figure 6)
= 15 pF (see Figure 6)
= 15 pF (see Figure 10)
= 15 pF (see Figure 10)
= 15 pF (see Figure 10)