Datasheet

Fail-Safe, High-Speed (10Mbps),
Slew-Rate-Limited RS-485/RS-422 Transceivers
SWITCHING CHARACTERISTICS—MAX3086–MAX3088, and MAX3089 with SRL = GND
(V
CC
= +5V ±5%, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +5V and T
A
= +25°C.)
t
DPHL
Figures 6 and 12, C
L
= 100pF, S1 closed ns
Figures 7 and 9, R
DIFF
= 54Ω,
C
L1
= C
L2
= 100pF
3500t
RZL(SHDN)
Figures 7 and 9, R
DIFF
= 54Ω,
C
L1
= C
L2
= 100pF
Receiver Enable from Shutdown
to Output Low
Figures 7 and 9, R
DIFF
= 54Ω,
C
L1
= C
L2
= 100pF
Figures 6 and 12, C
L
= 100pF, S2 closed
Figures 8 and 10, C
L
= 15pF, S1 closed
Figures 8 and 10, C
L
= 15pF, S2 closed
Figures 6 and 12, C
L
= 100pF, S1 closed
Figures 11 and 13;
|
V
ID |
≥ 2.0V;
rise and fall time of V
ID
≤ 15ns
(Note 5)
Figures 6 and 12, C
L
= 100pF, S2 closed
Figures 11 and 13;
|
V
ID |
≥ 2.0V;
rise and fall time of V
ID
≤ 15ns
Figures 8 and 10, C
L
= 15pF, S2 closed
Figures 8 and 10, C
L
= 100pF, S2 closed
Figures 8 and 10, C
L
= 100pF, S1 closed
Figures 6 and 12, C
L
= 100pF, S1 closed
Figures 8 and 10, C
L
= 15pF, S1 closed
Figures 6 and 12, C
L
= 100pF, S2 closed
CONDITIONS
34 60
ns3500t
RZH(SHDN)
Receiver Enable from Shutdown
to Output High
ns250t
DZL(SHDN)
Driver Enable from Shutdown to
Output Low
ns250t
DZH(SHDN)
Driver Enable from Shutdown to
Output High
ns50 200 600t
SHDN
Time to Shutdown
ns20 50t
RHZ
Receiver Disable Time from
High
ns20 50t
RLZ
Receiver Disable Time from Low
ns20 50t
RZH
Receiver Enable to Output High
ns14 25t
DR,
t
DF
Driver Rise or Fall Time
ns-2.5 ±10t
DSKEW
ns
34 60t
DPLH
Driver Input to Output
Driver Output Skew
|
t
DPLH
- t
DPHL |
ns20 50t
RZL
Receiver Enable to Output Low
ns0±10t
RSKD
|
t
RPLH
- t
RPHL |
Differential
Receiver Skew
ns106 150
t
RPLH
,
t
RPHL
Receiver Input to Output
ns100t
DHZ
Driver Disable Time from High
Mbps10f
MAX
Maximum Data Rate
ns150t
DZH
Driver Enable to Output High
ns150t
DZL
Driver Enable to Output Low
ns100t
DLZ
Driver Disable Time from Low
UNITSMIN TYP MAXSYMBOLPARAMETER
Note 5: The device is put into shutdown by bringing RE high and DE low. If the enable inputs are in this state for less than 50ns, the
device is guaranteed not to enter shutdown. If the enable inputs are in this state for at least 600ns, the device is guaranteed
to have entered shutdown.
MAX3080–MAX3089
6
Maxim Integrated