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ADM2485 Datasheet(PDF) 9 Page - Analog Devices

Part # ADM2485
Description  High Speed Isolated RS-485 Transceiver with Integrated Transformer Driver
PDF  15 Pages
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Manufacturer  AD [Analog Devices]
Direct Link  http://www.analog.com
Logo AD - Analog Devices

ADM2485 Datasheet(HTML) 9 Page - Analog Devices

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Preliminary Technical Data
ADM2485
SWITCHING CHARACTERISTICS
0.7VDD1
3V
tPHL
tPLH
VO
1.5V
1.5V
tF
tR
10% POINT
10% POINT
90% POINT
90% POINT
1/2VO
tSKEW = |tPLH – tPHL|
tLZ
tZL
tHZ
tZH
VOH –0.5V
VOH +0.5V
0.3VDD1
0.5VDD1
0.5VDD1
2.3V
2.3V
VOL
VOH
0.7VDD1
0.3VDD1
0.5VDD1
0.5VDD1
VOL
O/P LOW
tLZ
tZL
tHZ
tZH
VOH +0.5V
1.5V
RTS
A–B
A–B
0V
B
A
VO
0V
–VO
0V
Figure 12. Driver Propagation Delay, Rise/Fall Timing
Figure 14. Driver Enable/Disable Timing
A–B
RxD
0V
0V
1.5V
1.5V
tPLH
tSKEW = |tPLH – tPHL|
tPHL
RE
VOH
RxD
O/P HIGH
VOH
VOH –0.5V
1.5V
Figure 15. Receiver Enable/Disable Timing
VOL
RxD
0V
Figure 13. Receiver Propagation Delay
Rev. PrK | Page 9 of 15



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