Datasheet

MAX13448E
±80V Fault-Protected Full-Duplex
RS-485 Transceiver
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC
= +3.0 to +5.5V, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +3.3V and T
A
= +25°C.) (Notes 2, 3)
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
RECEIVER
V
A
, V
B
= +12V
V
CC
= GND or
V
CC
= +3.0V to +5.5V
+125 µA
V
A
, V
B
= -7V -100 µA
Input Current I
A
,
B
V
A
, V
B
= ±80V -6 +6 mA
Receiver Differential Threshold
Voltage
V
TH
-7V ≤ V
CM
≤ +12V -200 -50 mV
Receiver Input Hysteresis ΔV
TH
25 mV
Output High Voltage V
OH
I
OH
= -1.6mA
V
CC
-
0.6
V
Output Low Voltage V
OL
I
OL
= 1mA 0.4 V
Three-State Output Current at
Receiver
I
OZR
0 ≤ V
A
, V
B
≤ V
CC
-1 +1 µA
Receiver Output Short-Circuit
Current
I
OSR
0 ≤ V
RO
≤ V
CC
-95 +95 mA
ESD PROTECTION
All Pins Human Body Model ±2 kV
ESD Protection Level
(A and B, Y and Z)
Human Body Model ±8 kV
CONTROL
Control Input High Voltage V
CIH
DE, RE 2V
Control Input Low Voltage V
CIL
DE, RE 0.8 V
Input Current Latch During First
Rising Edge
I
IN
DE, RE 80 µA
PROTECTION SPECIFICATIONS
Overvoltage Protection A, B, Y, Z -80 +80 V
PARAMETER SYMBOL CONDITION MIN TYP MAX UNITS
DRIVER
Driver Differential Propagation
Delay
t
DPLH
,
t
DPHL
R
L
= 54Ω, C
L
= 50pF, Figures 2 and 3 700 1500 ns
Driver Differential Output
Transition Time
t
LH
, t
HL
R
L
= 54Ω, C
L
= 50pF, Figures 2 and 3 250 1200 ns
Differential Driver Output Skew t
DSKEW
R
L
= 54Ω, C
L
= 50pF, t
DSKEW
= [t
DPLH
-
t
DPHL
], Figures 2 and 3
150 200 ns
Maximum Data Rate f
MAX
250 kbps
D r i ver E nab l e Ti m e to Outp ut H i g ht
DZH
R
L
= 500Ω, C
L
= 50pF, Figure 4 2000 ns
SWITCHING CHARACTERISTICS (V
CC
= +3.3V ±10%)
(T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC
= +3.3V and T
A
= +25°C.)