LTC485_15 datasheet(4/14 Pages) LINER

Part #	LTC485

Description	Low Power RS485 Interface Transceiver

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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4 / 14 page

LTC485

4

485fk

For more information www.linear.com/LTC485

TYPICAL PERFORMANCE CHARACTERISTICS

Receiver Output Low Voltage

vs Temperature

Driver Differential Output Voltage

vs Output Current

Driver Differential Output Voltage

vs Temperature

Driver Output Low Voltage

vs Output Current

Driver Output High Voltage

vs Output Current

TTL Input Threshold

vs Temperature

Receiver Output Low Voltage

vs Output Current

Receiver Output High Voltage

vs Output Current

Receiver Output High Voltage

vs Temperature

OUTPUT VOLTAGE (V)

0

4

12

16

20

1.0

36

485 G01

8

0.5

2.0

24

28

32

1.5

TA = 25°C

OUTPUT VOLTAGE (V)

5

0

–2

–6

–8

–10

3

–18

485 G02

–4

4

–12

–14

–16

2

TA = 25°C

TEMPERATURE (°C)

–50

3.0

3.2

3.6

3.8

4.0

75

4.8

485 G03

3.4

0

125

4.2

4.4

4.6

–25

25

50

100

I = 8mA

TEMPERATURE (°C)

–50

0

0.1

0.3

0.4

0.5

75

0.9

485 G04

0.2

0

125

0.6

0.7

0.8

–25

25

50

100

I = 8mA

OUTPUT VOLTAGE (V)

0

8

24

32

40

2

72

485 G05

16

1

3

48

56

64

4

TA = 25°C

TEMPERATURE (°C)

–50

1.5

1.6

1.8

1.9

2.0

75

2.4

485 G06

1.7

0

125

2.1

2.2

2.3

–25

25

50

100

RI = 54

OUTPUT VOLTAGE (V)

0

10

30

40

50

2

90

485 G07

20

1

3

60

70

80

4

TA = 25°C

OUTPUT VOLTAGE (V)

0

–12

–36

–48

–60

2

–108

485 G08

–24

1

3

–72

–84

–96

4

TA = 25°C

TEMPERATURE (°C)

–50

1.55

1.56

1.58

1.59

1.60

75

1.64

485 G09

1.57

0

125

1.61

1.62

1.63

–25

25

50

100

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