ADM4850AR-REEL7 Ver la hoja de datos (PDF) - Analog Devices

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ADM4850AR-REEL7

5 V Slew-Rate Limited Half- and Full-Duplex RS-485/RS-422 Transceivers

Analog Devices 

SWITCHING CHARACTERISTICS

3V

1.5V

1.5V

0V

B

1/2VO

VO

tPLH

tPHL

A

5V

90% POINT

tSKEW = |tPLH –tPHL|

90% POINT

10% POINT

0V

tR

10% POINT

tF

Figure 10. Driver Propagation Delay, Rise/Fall Timing

A, B

0V

0V

tPLH

tPHL

VOH

RO

1.5V

tSKEW = |tPLH –tPHL|

1.5V

VOL

Figure 11. Receiver Propagation Delay

ADM4850–ADM4857

DE

1.5V

tZL

3V

1.5V

0V

tLZ

A, B

A, B

2.3V

tZH

2.3V

VOL +0.5V

tHZ

VOH –0.5V

VOL

VOH

0V

Figure 12. Driver Enable/Disable Timing

RE

1.5V

tZL

3V

1.5V

0V

tLZ

R

1.5V

O/P LOW

VOL +0.5V

VOL

tZH

O/P HIGH

tHZ

VOH

R

1.5V

VOH –0.5V

0V

Figure 13. Receiver Enable/Disable Timing

Rev. 0 | Page 9 of 16

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