Datasheet
Driver Input to Output
MAX1481/MAX1484/MAX1485/MAX1486
Software-Selectable, Half-/Full-Duplex, Slew-Rate-Limited,
12Mbps, RS-485/RS-422 Transceivers in µMAX Package
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(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.) (Note 1)
SWITCHING CHARACTERISTICS (MAX1484/MAX1486)
(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.)
-7V ≤ V
CM
≤ 12V
-7V ≤ V
CM
≤ 12V
I
O
= 4mA, V
ID
= -200mV
I
O
= -4mA, V
ID
= 200mV
0.4V ≤ V
O
≤ 2.4V
CONDITIONS
kΩ96R
IN
Receiver Input Resistance
µA±1I
OZR
Three-State Output Current at
Receiver
mV70∆V
TH
Receiver Input Hysteresis
mV-200 200V
TH
Receiver Differential Threshold
Voltage
V0.4V
OL
Receiver Output Low Voltage
V3.5V
OH
Receiver Output High Voltage
UNITSMIN TYP MAXSYMBOLPARAMETER
0V ≤ V
RO
≤ V
CC
RE = GND, DE = V
CC
mA±95I
OSR
Receiver Output Short-Circuit
Current
µA300 600I
CC
No-Load Supply Current
DE = GND, RE = V
CC
µA0.1 10I
SHDN
Supply Current in Shutdown
Mode (MAX1481 Only)
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF,
Figures 7 and 9
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF,
Figures 7 and 9
CONDITIONS
ns5 10t
DSKEW
Driver Output Skew
| t
DPLH
- t
DPHL
|
30 60t
DPLH
ns
30 60t
DPHL
Driver Input to Output
UNITSMIN TYP MAXSYMBOLPARAMETER
C
L
= 15pF, S1 closed, Figures 8 and 10
C
L
= 100pF, S2 closed, Figures 8 and 10
C
L
= 100pF, S1 closed, Figures 8 and 10
ns40 70t
DLZ
Driver Disable Time from Low
ns40 70t
DZH
Driver Enable to Output High
ns40 70t
DZL
Driver Enable to Output Low
Mbps12f
MAX
Maximum Data Rate
C
L
= 15pF, S2 closed, Figures 8 and 10
C
L
= 100pF, S2 closed, Figures 6 and 12
C
L
= 100pF, S1 closed, Figures 6 and 12
ns20 50t
RZH
Receiver Enable to Output High
ns20 50t
RZL
Receiver Enable to Output Low
ns40 70t
DHZ
Driver Disable Time from High
C
L
= 100pF, S2 closed, Figures 6 and 12
C
L
= 100pF, S1 closed, Figures 6 and 12
ns20 50t
RHZ
Receiver Disable Time from High
ns20 50t
RLZ
Receiver Disable Time from Low
Figures 11 and 13 ns5t
RSKD
| t
RPLH
- t
RPHL
| Differential
Receiver Skew
Figures 11 and 13 ns90 150
t
RPLH
,
t
RPHL
Receiver Input to Output
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF,
Figures 7 and 9
ns5 15 35t
DR
, t
DF
Driver Rise or Fall Time
RECEIVER
SUPPLY CURRENT