3.3V-Powered, ±15kV ESD-Protected, 12Mbps and
Slew-Rate-Limited True RS-485/RS-422 Transceivers
MAX3483E/MAX3485E/MAX3486E/MAX3488E/MAX3490E/MAX3491E
B
1V/div
DI
2V/div
Z
1V/div
A
1V/div
Y
1V/div
20ns/div
RO
2V/div
20ns/div
Figure 15. MAX3485E/MAX3490E/MAX3491E Driver Propagation
Delay
Figure 16. MAX3485E/MAX3490E/MAX3491E Receiver
Propagation Delay Driven by External RS-485 Device
B
1V/div
DI
2V/div
Z
1V/div
Y
1V/div
1µs/div
A
1V/div
RO
2V/div
1µs/div
Figure 17. MAX3483E/MAX3488E Driver Propagation Delay
Figure 18. MAX3483E/MAX3488E Receiver Propagation Delay
DI
5V/div
V
Y
- V
Z
2V/div
DI
5V/div
V
Y
- V
Z
2V/div
RO
5V/div
RO
5V/div
2µs/div
2µs/div
Figure 19. MAX3483E/MAX3488E System Differential Voltage at
125kHz Driving 4000 Feet of Cable
Figure 20. MAX3485E/MAX3490E/MAX3491E System Differential
Voltage at 125kHz Driving 4000 Feet of Cable
12
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MAXIM [ MAXIM INTEGRATED PRODUCTS ]
