RS-485/RS-422 Transceivers with Preemphasis

for High-Speed, Long-Distance Communication

6

_______________________________________________________________________________________

____________________________________Typical Operating Characteristics (continued)

0

0.75

0.50

0.25

1.75

1.50

1.25

1.00

2.00

2.75

2.50

2.25

3.00

-40

0

20

-20

40

60

80

100

NO-LOAD SUPPLY CURRENT

vs. TEMPERATURE

TEMPERATURE (°C)

0

20

10

40

30

60

50

70

0

1.0 1.5

0.5

2.0 2.5 3.0 3.5 4.0 4.5 5.0

OUTPUT SINK CURRENT vs.

RECEIVER OUTPUT LOW VOLTAGE

OUTPUT LOW VOLTAGE (V)

0

0.10

0.05

0.15

0.20

0.25

0.30

-40

0

20

-20

40

60

80

100

RECEIVER OUTPUT LOW VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

0

5

15

10

25

20

30

0

1.0 1.5

0.5

2.0 2.5 3.0 3.5 4.0 4.5 5.0

OUTPUT SOURCE CURRENT vs.

RECEIVER OUTPUT HIGH VOLTAGE

OUTPUT HIGH VOLTAGE (V)

4.10

4.25

4.20

4.15

4.35

4.30

4.45

4.40

4.55

4.50

4.60

-40

0

20

-20

40

60

80

100

RECEIVER OUTPUT HIGH VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

DRIVER PROPAGATION DELAY

20ns/div

DI

2.5V/

div

5V/

div