Datasheet
MAX3460–MAX3464
+5V, Fail-Safe, 20Mbps, Profibus RS-485/
RS-422 Transceivers
_______________________________________________________________________________________ 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)
PARAMETER SYMBOL CONDITIONS MIN TYP MAX UNITS
Receiver Input Hysteresis ∆V
TH
V
A
+ V
B
= 0 20 mV
Receiver Output High Voltage V
OH
I
O
= -4mA, V
A
- V
B
= V
TH
V
CC
- 1.5 V
Receiver Output Low Voltage V
OL
I
O
= 4mA, V
B
- V
A
= V
TH
0.4 V
Three-State Output Current at
Receiver
I
OZR
0 ≤ V
O
≤ V
CC
±1µA
Receiver Input Resistance R
IN
-7V ≤ V
CM
≤ 12V 48 kΩ
Receiver Output Short-Circuit
Current
I
OSR
0 ≤ V
RO
≤ V
CC
±7 ±95 mA
SUPPLY CURRENT
N or m al O p er ati on ( stati c cond i ti on) I
Q
No load, DI = V
CC
or DI = GND 2.5 4 mA
Supply Current in SHDN I
SHDN
DE = GND and RE = V
CC
, or SHDN = V
CC
110µA
SWITCHING CHARACTERISTICS
t
PLH
Driver Propagation Delay
t
PHL
Figures 6 and 7, R
DIFF
= 54Ω,
C
L
= 50pF
20 ns
t
R
Driver Differential Output Rise or
Fall Time
t
F
Figures 6 and 7, R
DIFF
= 54Ω,
C
L
= 50pF
20 ns
Driver Output Skew |t
PLH
- t
PHL
|t
SKEW
Figures 6 and 7, R
DIFF
= 54Ω,
C
L
= 50pF, TXP = GND or floating
2ns
Maximum Data Rate 20 Mbps
Driver Enable to Output High t
ZH
Figures 8 and 9, S2 closed, R
L
= 500Ω,
C
L
= 50pF
100 ns
Driver Enable to Output Low t
ZL
Figures 8 and 9, S1 closed, R
L
= 500Ω,
C
L
= 50pF
100 ns
Driver Disable Time from Low t
LZ
Figures 8 and 9, S1 closed, R
L
= 500Ω,
C
L
= 50pF
100 ns
Driver Disable Time from High t
HZ
Figures 8 and 9, S2 closed, R
L
= 500Ω,
C
L
= 50pF
100 ns
t
PLH
Receiver Propagation Delay
t
PHL
Figure 10, C
L
= 15pF (Note 4) 20 ns
Recei ver O utp ut S kew |t
PLH
- t
P H L
| t
SKEW
Figure 10, C
L
= 15pF, RXP = GND or
floating (Note 4)
2ns
Receiver Enable to Output Low t
ZL
Figures 8 and 11, R
L
= 1kΩ, C
L
= 15pF,
S1 closed (Note 4)
100 ns
Receiver Enable to Output High t
ZH
Figures 8 and 11, R
L
= 1kΩ, C
L
= 15pF,
S2 closed (Note 4)
100 ns
Receiver Disable Time from Low t
LZ
Figures 8 and 11, R
L
= 1kΩ, C
L
= 15pF,
S1 closed (Note 4)
100 ns
Receiver Disable Time from High t
HZ
Figures 8 and 11, R
L
= 1kΩ, C
L
= 15pF,
S2 closed (Note 4)
100 ns