5

LTC1686/LTC1687

Receiver Propagation Delay

vs Temperature

TEMPERATURE (

°C)

–50

–25

0

10

25

0

50

75

1686/87 G09

5

20

15

25

100

125

Driver Propagation Delay

vs Temperature

TEMPERATURE (

°C)

–20

0

5

10

15

20

25

0

20

40

60

1686/87 G07

80

100

Receiver Maximum Data Rate

vs Input Overdrive

RECEIVER INPUT DIFFERENTIAL (V)

0.3

40

50

70

0.6

1.0

1686/87 G10

30

20

0.4

0.5

0.7

1.5

2.5

10

0

60

Driver Propagation Delay

vs Driver Input Voltage

DRIVER INPUT VOLTAGE (V)

2.5

15

20

25

4.5

1686/87 G08

10

5

0

3.0

3.5

4.0

5.0

INPUT THRESHOLD = 1.5V

Driver Propagation Delay

vs Capacitive Load

LOAD CAPACITANCE (pF)

5

16.0

16.5

17.0

17.5

18.0

19.0

15

25

50

75

1686/87 G11

100

150

18.5

LTC1686

0.1

µF 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.