Datasheet

MAX1480E/MAX1490E
±15kV ESD-Protected, Isolated RS-485/RS-422
Data Interfaces
_______________________________________________________________________________________ 3
ELECTRICAL CHARACTERISTICS (continued)
(V
CC_
= +5V ±10%, V
FS
= V
CC_
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC_
= +5V and T
A
= +25°C.)
(Notes 1, 2)
SWITCHING CHARACTERISTICS—MAX1480EA/MAX1490EA
(V
CC_
= +5V ±10%, V
FS
= V
CC_
, T
A
= T
MIN
to T
MAX
, unless otherwise noted. Typical values are at V
CC_
= +5V and T
A
= +25°C.)
Driver Disable Time from Low
(MAX1480EA Only)
t
LZ
0.5 1.8 µsFigures 6 and 8, C
L
= 15pF, S1 closed
Driver Disable Time from High
(MAX1480EA Only)
t
HZ
0.5 1.8 µsFigures 6 and 8, C
L
= 15pF, S2 closed
Driver Enable to Output Low
(MAX1480EA Only)
t
ZL
1.0 1.8 µsFigures 6 and 8, C
L
= 100pF, S1 closed
PARAMETER SYMBOL MIN TYP MAX UNITS
Driver Rise or Fall Time t
R,
t
F
15 50 ns
Receiver Input to Output
Propagation Delay
t
PHL
90 225
ns
Figures 5 and 7, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
t
PLH
120 225
Driver Enable to Output High
(MAX1480EA Only)
t
ZH
1.0 1.8 µs
Figures 5 and 10, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
Figures 6 and 8, C
L
= 100pF, S2 closed
t
PLH
90 275
Figures 5 and 7, R
DIFF
= 54Ω,
C
L1
= C
L2
= 100pF
Driver Output Skew
CONDITIONS
t
SKEW
30 100 ns
Driver Input to Output
Propagation Delay
t
PHL
60 275
ns
Figures 5 and 7, R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
-7V ≤ V
CM
≤ +12V VV
TH
Receiver Differential Threshold
A, B, Y, and Z pins, tested using Human Body
Model, Figures 1 and 2
kVISO I
OSD
ESD Protection
R = 27Ω or 50Ω, Figure 4 V
0.3
∆V
OD
CONDITIONS
Change in Magnitude of
Driver Output Voltage for
Complementary Output States
mA
0.25
R = 27Ω or 50Ω, Figure 4
V
CM
= 0
kΩR
IN
Receiver Input Resistance
mV∆V
TH
Receiver Input Hysteresis
V4V
OC
Driver Common-Mode Output
1.0
UNITSMIN TYP MAXSYMBOLPARAMETER
V
OUT
= 5.5V µAI
OH
Receiver Output High Current
Using resistor values listed in Tables 1 and 2
-7V ≤ V
O
≤ 12V (Note 5) mAISO I
OSD
Driver Short-Circuit Current
VV
OL
Receiver Output Low Voltage
Differential
Common mode 0.3
MAX1490EA/
MAX1490EB
MAX1480EA/
MAX1480EC
MAX1480EA/
MAX1480EC
MAX1490EA/
MAX1490EB
0.2
ISO I
IN
Input Current (A, B)
0.8
DE´ = 0,
V
CC_
= 0 or +5.5V
V
IN
= +12V
V
IN
= -7V
12
-0.2 0.2
70
0.4
250
100
±15
-7V ≤ V
CM
≤ +12V
48
(MAX1490E_)
(MAX1480E_)