Datasheet

3
LTC1484
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
∆V
TH
Receiver Input Hysteresis V
CM
= 0V, DE = 0 ● ±30 mV
V
OH
Receiver Output High Voltage I
OUT
= –4mA, (V
A
– V
B
) = 200mV ● 3.5 V
V
OL
Receiver Output Low Voltage I
OUT
= 4mA, (V
A
– V
B
) = –200mV ● 0.4 V
I
OZR
Three-State (High Impedance) Output Current V
CC
= Max, 0.4V ≤ V
OUT
≤ 2.4V, ● ±1 µA
at Receiver DE = 0
R
IN
Receiver Input Resistance –7V ≤ V
CM
≤ 12V ● 12 22 kΩ
I
CC
Supply Current No Load, Output Enabled (DE = V
CC
) ● 600 900 µA
No Load, Output Disabled (DE = 0)
● 400 700 µA
I
SHDN
Supply Current in Shutdown Mode DE = 0, RE = V
CC
, DI = 0 ● 120 µA
I
OSD1
Driver Short-Circuit Current, V
OUT
= High (Note 4) –7V ≤ V
OUT
≤ 10V 35 250 mA
I
OSD2
Driver Short-Circuit Current, V
OUT
= Low (Note 4) –7V ≤ V
OUT
≤ 10V 35 250 mA
I
OSR
Receiver Short-Circuit Current 0V ≤ V
OUT
≤ V
CC
● 785mA
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V ±5% (Notes 2 and 3) unless otherwise noted.
ELECTRICAL CHARACTERISTICS
SWITCHING CHARACTERISTICS
U
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
PLH
Driver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF ● 10 28.5 60 ns
(Figures 4, 6)
t
PHL
Driver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF ● 10 31 60 ns
(Figures 4, 6)
t
SKEW
Driver Output to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF ● 2.5 10 ns
(Figures 4, 6)
t
r
, t
f
Driver Rise or Fall Time R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF ● 31540 ns
(Figures 4, 6)
t
ZH
Driver Enable to Output High C
L
= 100pF (Figures 5, 7) S2 Closed ● 40 70 ns
t
ZL
Driver Enable to Output Low C
L
= 100pF (Figures 5, 7) S1 Closed ● 40 100 ns
t
LZ
Driver Disable Time from Low C
L
= 15pF (Figures 5, 7) S1 Closed ● 40 70 ns
t
HZ
Driver Disable Time from High C
L
= 15pF (Figures 5, 7) S2 Closed ● 40 70 ns
t
PLH
Receiver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF, ● 30 160 200 ns
(Figures 4, 8)
t
PHL
Receiver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF, ● 30 140 200 ns
(Figures 4, 8)
t
SKD
|t
PLH
– t
PHL
| Differential Receiver Skew R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF, 20 ns
(Figures 4, 8)
t
ZL
Receiver Enable to Output Low C
RL
= 15pF (Figures 3, 9) S1 Closed ● 20 50 ns
t
ZH
Receiver Enable to Output High C
RL
= 15pF (Figures 3, 9) S2 Closed ● 20 50 ns
t
LZ
Receiver Disable from Low C
RL
= 15pF (Figures 3, 9) S1 Closed ● 20 50 ns
t
HZ
Receiver Disable from High C
RL
= 15pF (Figures 3, 9) S2 Closed ● 20 50 ns
t
DZR
Driver Enable to Receiver Valid R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF ● 1600 3000 ns
(Figures 4, 10)
f
MAX
Maximum Data Rate (Note 5) ● 4 5 Mbps
t
SHDN
Time to Shutdown (Note 6) DE = 0, RE↑ ● 50 300 600 ns
The ● denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C.