ADM3491 Analog Devices, ADM3491 Datasheet - Page 3

• Manufacturer Part Number: ADM3491
• Description: 3.3 V/ Full Duplex/ 840 uA 20 Mbps/ EIA RS-485 Transceiver
• Manufacturer: Analog Devices

TIMING SPECIFICATIONS
Parameter
DRIVER
ENABLE/DISABLE
RECEIVER
REV. 0
TIMING SPECIFICATIONS
Parameter
DRIVER
ENABLE/DISABLE
RECEIVER
Differential Output Delay T
Differential Output Transition Time
Propagation Delay Input to Output T
Driver O/P to O/P T
Driver Enable to Output Valid
Driver Disable Timing
Driver Enable from Shutdown
Time to Shutdown
Propagation Delay Input to Output T
Skew T
Receiver Enable T
Receiver Disable T
Receiver Enable from Shutdown
Differential Output Delay T
Differential Output Transition Time
Propagation Delay Input to Output T
Driver O/P to O/P T
Driver Enable to Output Valid
Driver Disable Timing
Driver Enable from Shutdown
Time to Shutdown
Propagation Delay Input to Output T
Skew T
Receiver Enable T
Receiver Disable T
Receiver Enable from Shutdown
PLH
PLH
–T
–T
PHL
PHL
EN
EN
DEN
DEN
SKEW
SKEW
DD
DD
(V
(V
PLH
PLH
PLH
PLH
CC
CC
, T
, T
, T
, T
= +3.3 V
= +3.3 V, T
PHL
PHL
PHL
PHL
A
Min
1
2
7
50
25
Min
1
1
7
80
25
0.3 V, T
= +25 C)
A
= T
Typ
8
22
45
40
650
65
25
25
Typ
8
22
45
40
650
190
65
25
25
190
–3–
MIN
to T
Max
70
15
70
10
110
110
110
500
115
20
50
50
600
Max
35
15
35
8
90
80
110
300
90
10
50
45
500
MAX
)
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units Test Conditions/ Comments
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units Test Conditions/ Comments
ns
ns
R
R
R
R
R
R
R
C
C
C
C
C
R
R
R
R
R
R
R
C
C
C
C
C
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
L
= 60 , C
= 60 , C
= 27 , C
= 54 , C
= 110 , C
= 110 , C
= 110 , C
= 60 , C
= 60 , C
= 27 , C
= 54 , C
= 110 , C
= 110 , C
= 110 , C
= 15 pF, Figure 8
= 15 pF, Figure 8
= 15 pF, Figure 4
= 15 pF, Figure 4
= 15 pF, Figure 4
= 15 pF, Figure 8
= 15 pF, Figure 8
= 15 pF, Figure 4
= 15 pF, Figure 4
= 15 pF, Figure 4
L1
L1
L1
L1
L1
L1
L1
L1
L
L
L
L
L
L
= C
= C
= C
= C
= C
= C
= C
= C
= 50 pF, Figure 3
= 50 pF, Figure 3
= 15 pF, Figure 3
= 50 pF, Figure 3
= 50 pF, Figure 3
= 15 pF, Figure 3
L2
L2
L2
L2
L2
L2
L2
L2
ADM3491
= 15 pF, Figure 5
= 15 pF, Figure 5
= 15 pF, Figure 6
= 15 pF, Figure 6
= 15 pF, Figure 5
= 15 pF, Figure 5
= 15 pF, Figure 6
= 15 pF, Figure 6