3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
DC ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.3V ±0.3V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at T
A
= +25°C.)
PARAMETER
Driver Short-Circuit Output Current
Receiver Short-Circuit Output Current
SYMBOL
I
OSD
I
OSR
CONDITIONS
V
OUT
= -7V
V
OUT
= 12V
0
≤
V
RO
≤
V
CC
IEC 1000-4-2 Air Discharge
IEC 1000-4-2 Contact Discharge
(MAX3483E, MAX3485E,
MAX3486E, MAX3491E)
IEC 1000-4-2 Contact Discharge
(MAX3490E, MAX3488E)*
Human Body Model
MIN
TYP
MAX
-250
250
±60
UNITS
mA
mA
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
±8
±15
±8
ESD Protection for Y, Z, A, B
kV
±6
±15
*MAX3488E
and MAX3491E will be compliant to ±8kV per IEC 1000-4-2 Contact Discharge by September 1999.
DRIVER SWITCHING CHARACTERISTICS—MAX3485E/MAX3490E/MAX3491E
(V
CC
= +3.3V, T
A
= +25°C.)
PARAMETER
Maximum Data Rate
Driver Differential Output Delay
Driver Differential Output Transition Time
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
SYMBOL
t
DD
t
TD
t
PLH
t
PHL
t
PDS
t
PZL
t
PZH
t
PHZ
t
PLZ
t
PSL
t
PSH
CONDITIONS
R
L
= 60Ω, Figure 7
R
L
= 60Ω, Figure 7
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
MIN
12
1
3
7
7
TYP
15
22
11
23
23
-1.4
42
42
35
35
650
650
MAX
35
25
35
35
±8
90
90
80
80
900
900
UNITS
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
|
t
PLH
- t
PHL
|
Driver Propagation-Delay Skew (Note 2)
Driver-Output Enable Time to Low Level
Driver-Output Enable Time to High Level
Driver-Output Disable Time from High Level
Driver-Output Disable Time from Low Level
Driver-Output Enable Time from Shutdown to Low Level
Driver-Output Enable Time from Shutdown to High Level
DRIVER-OUTPUT ENABLE/DISABLE TIMES (MAX3485E/MAX3491E only)
DRIVER SWITCHING CHARACTERISTICS—MAX3486E
(V
CC
= +3.3V, T
A
= +25°C.)
PARAMETER
Maximum Data Rate
Driver Differential Output Delay
Driver Differential Output Transition Time
Driver Propagation Delay, Low-to-High Level
Driver Propagation Delay, High-to-Low Level
SYMBOL
t
DD
t
TD
t
PLH
t
PHL
t
PDS
t
PZL
t
PZH
t
PHZ
t
PLZ
t
PSL
t
PSH
CONDITIONS
R
L
= 60Ω, Figure 7
R
L
= 60Ω, Figure 7
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 27Ω, Figure 8
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 9
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 10
R
L
= 110Ω, Figure 9
MIN
2.5
20
15
20
20
TYP
42
28
42
42
-6
52
52
40
40
700
700
MAX
70
60
75
75
±12
100
100
80
80
1000
1000
UNITS
Mbps
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
3
|
t
PLH
- t
PHL
|
Driver Propagation-Delay Skew (Note 2)
DRIVER-OUTPUT ENABLE/DISABLE TIMES
Driver-Output Enable Time to Low Level
Driver-Output Enable Time to High Level
Driver-Output Disable Time from High Level
Driver-Output Disable Time from Low Level
Driver-Output Enable Time from Shutdown to Low Level
Driver-Output Enable Time from Shutdown to High Level
_______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
