LTC1487 Просмотр технического описания (PDF) - Linear Technology
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LTC1487 Datasheet PDF : 8 Pages
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LTC1487
U
SWITCHI G CHARACTERISTICS 0°C ≤ TA ≤ 70°C, VCC = 5V (Notes 2, 3) unless otherwise noted.
SYMBOL
tZH(SHDN)
tZL(SHDN)
tZH(SHDN)
tZL(SHDN)
PARAMETER
Driver Enable from Shutdown to Output High
Driver Enable from Shutdown to Output Low
Receiver Enable from Shutdown to Output High
Receiver Enable from Shutdown to Output Low
CONDITIONS
CL = 100pF (Figures 4, 6), S2 Closed
CL = 100pF (Figures 4, 6), S1 Closed
CL = 15pF (Figures 2, 8), S2 Closed
CL = 15pF (Figures 2, 8), S1 Closed
MIN
q
q
q
q
TYP
MAX UNITS
2000
ns
2000
ns
2000
ns
2000
ns
The q denotes specifications which apply over the full operating
temperature range.
Note 1: Absolute maximum ratings are those beyond which the safety of
the device cannot be guaranteed.
Note 2: All currents into device pins are positive; all currents out ot device
pins are negative. All voltages are referenced to device ground unless
otherwise specified.
Note 3: All typicals are given for VCC = 5V and TA = 25°C.
Note 4: The LTC1487 is not tested and is not quality-assurance sampled at
– 40°C and at 85°C. These specifications are guaranteed by design,
correlation, and/or inference from 0°C, 25°C and/or 70°C tests.
TYPICAL PERFORMANCE CHARACTERISTICS
Supply Current vs Temperature
450
400
350
THERMAL SHUTDOWN
300
WITH DRIVER ENABLED
AND NOMINAL LOAD
250
200
150
DRIVER ENABLED
100
WITH NO LOAD
50 DRIVER DISABLED WITH NO LOAD
0
– 50 –25 0 25 50 75 100 125 150 175
TEMPERATURE (°C)
LTC1487 • TPC01
Driver Output Low Voltage
vs Output Current
120
TA = 25°C
100
80
60
40
20
0
0
1
2
3
4
OUTPUT VOLTAGE (V)
LTC1487 • TPC04
4
Driver Differential Output Voltage
vs Output Current
80
TA = 25°C
70
60
50
40
30
20
10
0
0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5
OUTPUT VOLTAGE (V)
LTC1487 • TPC02
Driver Output High Voltage
vs Output Current
0
TA = 25°C
–10
–20
–30
– 40
– 50
– 60
–70
– 80
– 90
–100
0
1
2
3
4
5
OUTPUT VOLTAGE (V)
LTC1487 • TPC05
Driver Differential Output Voltage
vs Temperature
2.24
2.22
2.20
2.18
2.16
2.14
2.12
2.10
2.08
2.06
2.04
2.02
2.00
–50 –25
RL = 54Ω
0 25 50 75 100 125
TEMPERATURE (°C)
LTC1487 • TPC03
Driver Skew vs Temperature
500
450
400
350
300
250
200
150
–50 –25
0 25 50 75 100 125
TEMPERATURE (°C)
LTC1487 • G06
sn1487 1487fs
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