ADM1487EARZ Analog Devices Inc, ADM1487EARZ Datasheet - Page 5

• Manufacturer Part Number: ADM1487EARZ
• Description: IC TXRX HALF DUP RS485/422 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM1487EARZ

• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

V
Table 4. ADM487E
Parameter
DRIVER
RECEIVER
1
The ADM487E is put into shutdown mode by bringing RE high and DE low. If the inputs are in this state for less than 50 ns, the parts are guaranteed not to enter
shutdown. If the inputs are in this state for at least 600 ns, the ADM487E is guaranteed to enter shutdown.
CC
Driver Propagation Delay Input to Output, High to Low
Receiver Propagation Delay Input to Output, Low to High
Receiver Propagation Delay Input to Output, High to Low
Maximum Data Rate
Time to Shutdown
Driver Enable from Shutdown to Output High
Driver Enable from Shutdown to Output Low
Receiver Enable from Shutdown to Output High
Receiver Enable from Shutdown to Output Low
Driver Propagation Delay Input to Output, Low to High
Output Skew to Output
Rise/Fall Time
Enable Time to High Level
Enable Time to Low Level
Disable Time from Low Level
Disable Time from High Level
|t
Enable Time to Low Level
Enable Time to High Level
Disable Time from Low Level
Disable Time from High Level
PLH
= 5 V ± 10%, T
− t
PHL
| Differential Receiver Skew
A
1
= T
MIN
to T
MAX
, unless otherwise noted.
Symbol
t
t
t
t
t
t
t
t
t
t
t
t
t
t
t
f
t
t
t
t
t
MAX
DPLH
DPHL
SKEW
DR
DZH
DZL
DLZ
DHZ
RPLH
RPHL
SKEW
RZL
RZH
RLZ
RHZ
SHDN
DZH(SHDN)
DZL(SHDN)
RZH(SHDN)
RZL(SHDN)
Rev. B | Page 5 of 16
, t
DF
Min
250
250
250
250
250
300
300
250
250
250
50
Typ
800
800
20
100
25
25
25
25
200
5000
5000
5000
5000
Max
2000
2000
800
2000
2000
2000
3000
3000
2000
2000
50
50
50
50
600
ADM485E/ADM487E/ADM1487E
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
kbps
ns
ns
ns
ns
ns
Test Conditions/Comments
R
(see
R
(see
R
(see
R
(see
C
C
C
C
See
See
See
C
C
C
t
C
C
C
C
PLH
DIFF
DIFF
DIFF
DIFF
L
L
L
L
L
L
L
L
L
L
L
= 100 pF, S1 closed (see
= 100 pF, S1 closed (see
= 15 pF, S1 closed (see
= 15 pF, S1 closed (see
= 15 pF, S2 closed (see
= 15 pF, S1 closed (see
= 15 pF, S2 closed (see
= 100 pF, S1 closed (see
= 100 pF, S1 closed (see
= 15 pF, S2 closed (see
= 15 pF, S1 closed (see
, t
Figure 23
Figure 23
Figure 23
= 54 Ω, C
= 54 Ω, C
= 54 Ω, C
= 54 Ω, C
Figure 19
Figure 19
Figure 19
Figure 19
PHL
< 50% of data period
L1
L1
L1
L1
and
and
and
and
and
and
and
= C
= C
= C
= C
L2
L2
L2
L2
Figure 24
Figure 24
Figure 24
Figure 20
Figure 20
Figure 20
Figure 20
= 100 pF
= 100 pF
= 100 pF
= 100 pF
Figure 22
Figure 21
Figure 25
Figure 25
Figure 25
Figure 25
Figure 25
Figure 21
Figure 22
Figure 21
Figure 22
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