MAX1490AEPG datasheet(6/21 Pages) MAXIM

Part #	MAX1490AEPG

Description	Complete, Isolated RS-485/RS-422 Data Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

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Complete, Isolated RS-485/RS-422

Data Interface

6

_______________________________________________________________________________________

__________________________________________Typical Operating Characteristics

(TA = +25°C, unless otherwise noted.)

0

OUTPUT CURRENT vs.

RECEIVER OUTPUT LOW VOLTAGE

OUTPUT LOW VOLTAGE (V)

1.5

10

20

30

40

50

60

70

80

MEASURED AT ISO RO DRV

1.0

0.5

03.5

3.0

2.5

2.0

5.0

4.5

4.0

0

OUTPUT CURRENT vs.

RECEIVER OUTPUT HIGH VOLTAGE

OUTPUT HIGH VOLTAGE (V)

1.5

-5

MEASURED AT ISO RO DRV

1.0

0.5

03.5

3.0

2.5

2.0

5.0

4.5

4.0

-10

-15

-20

-25

-30

3.00

-40

20

RECEIVER OUTPUT HIGH VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

0

-20

60

40

80

3.25

3.50

3.75

4.00

4.25

4.50

4.75

5.00

MEASURED AT ISO RO DRV

IRO = 8mA

0

-40

20

RECEIVER OUTPUT LOW VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

0

-20

60

40

80

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

MEASURED AT ISO RO DRV

IRO = 8mA

0

DRIVER OUTPUT CURRENT

vs. DIFFERENTIAL OUTPUT VOLTAGE

DIFFERENTIAL OUTPUT VOLTAGE (V)

1.5

10

20

30

40

50

60

70

80

DI

´ = HIGH OR OPEN

1.0

0.5

03.5

3.0

2.5

2.0

5.0

4.5

4.0

OUTPUT CURRENT vs.

DRIVER OUTPUT LOW VOLTAGE

OUTPUT LOW VOLTAGE (V)

0

160

180

140

100

120

80

40

60

0

20

123

4567

8

9 10 11 12

0

-7

OUTPUT CURRENT vs.

DRIVER OUTPUT HIGH VOLTAGE

OUTPUT HIGH VOLTAGE (V)

0

-10

-20

-30

-40

-50

-60

-70

-80

-90

-100

-6 -5 -4 -3 -2 -1

1

2

3 4

5

6

2.0

-40

20

DRIVER DIFFERENTIAL OUTPUT VOLTAGE

vs. TEMPERATURE

TEMPERATURE (°C)

0

-20

60

40

80

2.1

2.2

2.3

2.4

2.5

2.6

2.7

2.8

2.9

3.0

DI

´ = HIGH OR OPEN

RL = 54Ω

0

-40

20

MAX1480B/MAX1480C/MAX1490B

SHUTDOWN CURRENT vs. TEMPERATURE

TEMPERATURE (°C)

0

-20

60

40

80

0.05

0.10

0.15

0.20

0.25

0.30

0.35

0.40

SD = VCC_, DI´ = VCC_

DE

´ (MAX1480B/C ONLY) = VCC_

MEASURED AT VCC1 AND VCC2

__________________________________________Typical Operating Characteristics

(VCC_ = 5V, FS = VCC_, TA = +25°C, unless otherwise noted.)

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