Low-Power, Slew-Rate-Limited

RS-485/RS-422 Transceivers

_______________________________________________________________________________________ 5

30

0

0

2.5

OUTPUT CURRENT vs.

RECEIVER OUTPUT LOW VOLTAGE

5

25

OUTPUT LOW VOLTAGE (V)

1.5

15

10

0.5

1.0

2.0

20

35

40

45

0.9

0.1

-50

-25

25

75

RECEIVER OUTPUT LOW VOLTAGE vs.

TEMPERATURE

0.3

0.7

TEMPERATURE (°C)

0

50

0.5

0.8

0.2

0.6

0.4

0

100

125

-20

-4

1.5

2.0

3.0

5.0

OUTPUT CURRENT vs.

RECEIVER OUTPUT HIGH VOLTAGE

-8

-16

OUTPUT HIGH VOLTAGE (V)

2.5

4.0

-12

-18

-6

-14

-10

-2

0

3.5

4.5

4.8

3.2

-50

-25

25

75

RECEIVER OUTPUT HIGH VOLTAGE vs.

TEMPERATURE

3.6

4.4

TEMPERATURE (°C)

0

50

4.0

4.6

3.4

4.2

3.8

3.0

100

125

90

0

0

1.0

3.0

4.5

DRIVER OUTPUT CURRENT vs.

DIFFERENTIAL OUTPUT VOLTAGE

10

70

DIFFERENTIAL OUTPUT VOLTAGE (V)

2.0

4.0

50

30

80

60

40

20

0.5

1.5

2.5

3.5

2.3

1.5

-50

-25

25

125

DRIVER DIFFERENTIAL OUTPUT VOLTAGE

vs. TEMPERATURE

1.7

2.1

TEMPERATURE (°C)

0

75

1.9

2.2

1.6

2.0

1.8

100

50

2.4

R = 54

Ω

__________________________________________Typical Operating Characteristics

NOTES FOR ELECTRICAL/SWITCHING CHARACTERISTICS

Note 1:

All currents into device pins are positive; all currents out of device pins are negative. All voltages are referenced to device

ground unless otherwise specified.

Note 2:

Note 3:

Supply current specification is valid for loaded transmitters when DE = 0V.

Note 4:

Applies to peak current. See

Typical Operating Characteristics.

Note 5:

The MAX481/MAX483/MAX487 are put into shutdown by bringing

–

R

—

E

–

high and DE low. If the inputs are in this state for less

than 50ns, the parts are guaranteed not to enter shutdown. If the inputs are in this state for at least 600ns, the parts are

guaranteed to have entered shutdown. See

Low-Power Shutdown Mode section.

ARTSCHIP