±1 5 k V ES D-P ro t e c t e d , S le w -Ra t e -Lim it e d ,
Lo w -P o w e r, RS -4 8 5 /RS -4 2 2 Tra n s c e ive rs
A
B
500mV/div
500mV/div
A
B
RO
5V/div
RO
5V/div
25ns/div
25ns/div
Figure 20. MAX481E/MAX485E/MAX490E/MAX491E/
Figure 19. MAX481E/MAX485E/MAX490E/MAX1487E Receiver
MAX1487E Receiver t
PLH
t
PHL
B
A
500mV/div
B
500mV/div
A
RO
5V/div
RO
5V/div
200ns/div
200ns/div
Figure 21. MAX483E/MAX487E–MAX489E Receiver t
Figure 22. MAX483E/MAX487E–MAX489E Receiver t
PHL
PLH
DI
5V
DI
5V
0V
0V
1V
0
0
V - V
V - V
B
A
A
B
-1V
-1V
DO
5V
0V
5V
0V
DO
2µs/div
2µs/div
Figure 23. MAX481E/MAX485E/MAX490E/MAX491E/
MAX1487E System Differential Voltage at 110kHz Driving
4000ft of Cable
Figure 24. MAX483E/MAX1487E–MAX489E System Differential
Voltage at 110kHz Driving 4000ft of Cable
35–9/MAX1487E
14 ______________________________________________________________________________________
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
