LTC1685C Ver la hoja de datos (PDF) - Linear Technology
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LTC1685C Datasheet PDF : 12 Pages
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LTC1685
U
SWITCHING CHARACTERISTICS
Note 1: Absolute Maximum Ratings are those values beyond which the life
of a device may be impaired.
Note 2: All currents into the device pins are positive; all currents out of the
device pins are negative.
Note 3: All typicals are given for VDD = 5V, TA = 25°C.
Note 4: Guaranteed by design, but not tested.
Note 5: Short-circuit current does not represent output drive capability.
When the output detects a short-circuit condition, output drive current is
significantly reduced (from hundreds of mA to 20mA max) until the short
is removed.
TYPICAL PERFORMANCE CHARACTERISTICS
Receiver Input CMRR
46.5
46.0
45.5
45.0
44.5
44.0
43.5
43.0
42.5
TA = 25°C
42.0
10
1k
100k
FREQUENCY (Hz)
1M
1685 G01
Receiver Propagation Delay
vs Load Capacitance
30
TA = 25°C
25
20
15
10
5
0
5 15 25 35 55 105 205
LOAD CAPACITANCE (pF)
1685 G04
Supply Current vs Data Rate
70
BOTH DRIVER AND RECEIVER
ENABLED AND LOADED
60 TA = 25°C
50
40
30
20
10
0
1
10
20
30
40
50
DATA RATE (Mbps)
1685 G02
Receiver Propagation Delay
vs Common Mode
25
TA = 25°C
20
15
10
5
0
– 7 – 4 – 2 0 2 4 6 8 10 12
RECEIVER COMMON MODE (V)
1685 G05
Supply Current vs Temperature
59
58
57
56
55
54
53
52
BOTH DRIVER AND RECEIVER
51 ENABLED AND LOADED
25Mbps DATA RATE
50
–50 – 25 0
25 50
TEMPERATURE (°C)
75 100
1685 G03
Receiver Propagation Delay
vs Input Overdrive
25
TA = 25°C
20
15
10
5
0
0.3 0.5 0.7 1.0 1.25 1.5 2.0 2.5
RECEIVER INPUT OVERDRIVE (V)
1685 G06
4
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