MAX3480A datasheet(6/16 Pages) MAXIM

Part #	MAX3480A

Description	Complete, Isolated, 3.3V RS-485/RS-422 Data Interface

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Manufacturer	MAXIM [Maxim Integrated Products]

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6 / 16 page

Complete, Isolated, 3.3V

RS-485/RS-422 Data Interface

6

_______________________________________________________________________________________

____________________________Typical Operating Characteristics (continued)

(VCC_ = 3.3V, TA = +25°C, unless otherwise noted.)

0.1

10

1

100

DRIVER ENABLE TIME

vs. TEMPERATURE

TEMPERATURE (°C)

-40

-20

0

20

40

60

80

MAX3480A

MAX3480B

RL = 54Ω, DI´ = 0V MEASURED FROM

DE

´ TO VALID OUTPUT

350

0

MAX3480A

SUPPLY CURRENT vs. SUPPLY VOLTAGE

300

250

SUPPLY VOLTAGE (V)

100

150

50

3.0

3.2

3.4

3.6

3.8

200

DE

´ HIGH, 50

Ω LOAD

DE

´ HIGH, 100

Ω LOAD

DE

´ LOW, DI´ LOW

DE

´ LOW, DI´ HIGH

300

0

MAX3480B

SUPPLY CURRENT vs. SUPPLY VOLTAGE

200

250

SUPPLY VOLTAGE (V)

100

50

3.0

3.2

3.6

3.4

3.8

150

DE

´ HIGH,

100

Ω LOAD

DE

´ HIGH, 50

Ω LOAD

DE

´ LOW, DI´ LOW

DE

´ LOW, DI´ HIGH

MAX3480B DRIVER INPUT (AB)

AND RECEIVER OUTPUT (RO)

CIRCUIT OF FIGURE 2, TERMINATION: 100

Ω

DE

´ INPUT,

2V/div

A

B

RO,

74HC240,

2V/div

1µs/div

DI,

2V/div

MAX3480A DRIVER INPUT (AB)

AND RECEIVER OUTPUT (RO)

CIRCUIT OF FIGURE 2, TERMINATION: 100

Ω

100ns/div

DE

´ INPUT,

2V/div

A

B

RO,

74HC240,

DI,

2V/div

MAX3480A DRIVER ENABLE (AB)

AND RECEIVER OUTPUT (RO)

CIRCUIT OF FIGURE 2, TERMINATION: 100

Ω

DE

´ INPUT,

1V/div

A, 1V/div

B, 2V/div

100ns/div

MAX3480B DRIVER ENABLE (AB)

AND RECEIVER OUTPUT (RO)

CIRCUIT OF FIGURE 2, TERMINATION: 100

Ω

DE

´ INPUT,

1V/div

A, 1V/div

B, 2V/div

25µs/div

0.1

10

1

100

DRIVER DISABLE TIME

vs. TEMPERATURE

TEMPERATURE (°C)

-40

-20

0

20

40

60

80

MAX3480A

MAX3480B

RL = 54Ω, DI´ = 0V MEASURED FROM

DE

´ TO VALID OUTPUT

Similar Part No. - MAX3480A

Manufacturer	Part #	Datasheet	Description
Maxim Integrated Produc...	MAX3480EA	280Kb / 16P	-15kV ESD-Protected, Isolated, 3.3V RS-485/RS-422 Data Interfaces Rev 0; 4/01
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Manufacturer	Part #	Datasheet	Description
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