LTC1686CS8 Ver la hoja de datos (PDF) - Linear Technology
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LTC1686CS8 Datasheet PDF : 12 Pages
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TYPICAL PERFORMANCE CHARACTERISTICS
LTC1686/LTC1687
Receiver Propagation Delay
vs Temperature
25
20
15
Receiver Maximum Data Rate
vs Input Overdrive
70
TA = 25°C
60
50
40
Driver Propagation Delay
vs Temperature
25
20
15
10
30
10
20
5
10
5
0
–50 –25
0 25 50 75
TEMPERATURE (°C)
100 125
1686/87 G09
0
0.3 0.4 0.5 0.6 0.7 1.0 1.5 2.5
RECEIVER INPUT DIFFERENTIAL (V)
1686/87 G10
0
– 20 0 20 40 60 80 100
TEMPERATURE (°C)
1686/87 G07
Driver Propagation Delay
vs Driver Input Voltage
25
VDD = 5V
INPUT THRESHOLD = 1.5V
20 TA = 25°C
tHL
tLH
15
10
5
Driver Propagation Delay
vs Capacitive Load
19.0
TA = 25°C
18.5
18.0
17.5
17.0
16.5
0
2.5 3.0 3.5 4.0 4.5 5.0
DRIVER INPUT VOLTAGE (V)
1686/87 G08
16.0
5
15 25 50 75 100 150
LOAD CAPACITANCE (pF)
1686/87 G11
PIN FUNCTIONS
LTC1686
VDD (Pin 1): Positive Supply, 5V to ±5%. Bypass with
0.1µF ceramic capacitor.
R (Pin 2): Receiver Output. If A ≥ B by 300mV, then R will
be high. If A ≤ B by 300mV, then R will be low.
D (Pin 3): Driver Input. Controls the states of the Y and Z
outputs. Do not float.
GND (Pin 4): Ground.
Y (Pin 5): Noninverting Driver Output.
Z (Pin 6): Inverting Driver Output.
B (Pin 7): Inverting Receiver Input.
A (Pin 8): Noninverting Receiver Input.
LTC1687
NC (Pins 1, 8, 13): No Connection.
R (Pin 2): Receiver Output. If A ≥ B by 300mV, then R will
be high. If A ≤ B by 300mV, then R will be low.
RE (Pin 3): Receiver Enable. RE = low enables the receiver.
RE = high forces receiver output into high impedance
state. Do not float.
5
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