LTC1485
4
1485fb
For more information www.linear.com/LTC1485
TYPICAL PERFORMANCE CHARACTERISTICS
Receiver Output Low Voltage vs
Output Current
Receiver Output High Voltage vs
Output Current
Receiver Output High Voltage vs
Temperature
SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
t
PLH
Driver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
l
10 30 50 ns
t
PHL
Driver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
l
10 30 50 ns
t
SKEW
Driver Output to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
l
4 10 ns
t
r
, t
f
Driver Rise or Fall Time R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF
(Figures 2, 5)
l
5 15 25 ns
t
ZH
Driver Enable to Output High C
L
= 100pF (Figures 4, 6) S2 Closed
l
40 70 ns
t
ZL
Driver Enable to Output Low C
L
= 100pF (Figures 4, 6) S1 Closed
l
40 70 ns
t
LZ
Driver Disable Time from Low C
L
= 15pF (Figures 4, 6) S1 Closed
l
40 70 ns
t
HZ
Driver Disable Time from High C
L
= 15pF (Figures 4, 6) S2 Closed
l
40 70 ns
t
PLH
Receiver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF (Figures 2, 7)
l
15 25 50 ns
t
PHL
Receiver Input to Output R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF (Figures 2, 7)
l
20 30 55 ns
t
SKEW
| t
PLH
– t
PHL
|
Differential Receiver Skew
R
DIFF
= 54Ω, C
L1
= C
L2
= 100pF (Figures 2, 7)
l
5 15 ns
t
ZL
Receiver Enable to Output Low C
L
= 15pF (Figures 3, 8) S1 Closed
l
30 45 ns
t
ZH
Receiver Enable to Output High C
L
= 15pF (Figures 3, 8) S2 Closed
l
30 45 ns
t
LZ
Receiver Disable from Low C
L
= 15pF (Figures 3, 8) S1 Closed
l
30 45 ns
t
HZ
Receiver Disable from High C
L
= 15pF (Figures 3, 8) S2 Closed
l
30 45 ns
SWITCHING CHARACTERISTICS
The l denotes the specifications which apply over the full operating
temperature range, otherwise specifications are at T
A
= 25°C. V
CC
= 5V (Notes 2, 3).
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: All currents into device pins are positive. All currents out of device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: All typicals are given for V
CC
= 5V and T
A
= 25°C.
OUTPUT VOLTAGE (V)
0
0
OUTPUT CURRENT (mA)
16
1.0
1485 G01
8
0.5 1.5
24
32
2.0
4
12
20
28
36
T
A
= 25°C
OUTPUT VOLTAGE (V)
5
0
OUTPUT CURRENT (mA)
–8
1485 G02
–4
4 3
–12
–16
2
–2
–6
–10
–14
–18
T
A
= 25°C
TEMPERATURE (°C)
–50
3.0
OUTPUT VOLTAGE (V)
3.8
50
1485 G03
3.4
–25 125
4.2
4.6
0
25
75 100
4.8
4.4
4.0
3.6
3.2
I = 8mA
