ADM3491 datasheet(9/12 Pages) AD

Part #	ADM3491

Description	3.3 V, Full Duplex, 840 uA 20 Mbps, EIA RS-485 Transceiver

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Manufacturer	AD [Analog Devices]

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ADM3491

–9–

REV. 0

TEMPERATURE – C

1.2

1.1

0.7

–40

100

–20

0

20

406080

1

0.9

0.8

Figure 19. Supply Current vs. Temperature

3

2

1

T

4

T

100FT

CABLE

CH1 1.00V

CH2 1.00V

M40.0ns CH3

640mV

CH3 2.00V

CH4 2.00V

[

T

]

Figure 20. Driving 100 ft. Cable L-H Transition

3

2

1

T

4

T

100FT CAT 5

CABLE

CH1 1.00V

CH2 1.00V

M40.0ns CH3

640mV

CH3 2.00V

CH4 2.00V

[

T

]

Figure 21. Driving 100 ft. Cable H-L Transition

TEMPERATURE – C

100

0

–40

80

–20

0

20

40

60

90

60

30

20

10

80

70

50

40

Figure 22. Shutdown Current vs. Temperature

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	ADM3491	327Kb / 20P	3.3 V Slew Rate Limited, Half- and Full-Duplex, RS-485/RS-422 Transceivers Rev. E
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Manufacturer	Part #	Datasheet	Description
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