MAX490ESA Maxim Integrated Products, MAX490ESA Datasheet - Page 12

• Manufacturer Part Number: MAX490ESA
• Description: RS-422/RS-485 Interface IC
• Manufacturer: Maxim Integrated Products

Specifications of MAX490ESA

• Case: SOP
• Lead Free Status / Rohs Status: No

Low-Power, Slew-Rate-Limited
RS-485/RS-422 Transceivers
Figure 15. MAX481/MAX485/MAX490/MAX491/MAX1487
Receiver t
Figure 17. MAX483, MAX487–MAX489 Receiver t
12
500mV/div
500mV/div
______________________________________________________________________________________
2V/div
2V/div
RO
RO
A
B
A
B
PHL
400ns/div
20ns/div
Figure 14. Receiver Propagation Delay Test Circuit
V
T
CC
A
= +25°C
t
R
= 5V
V
T
, t
A
CC
F
= +25°C
TTL IN
< 6ns
= 5V
PHL
D
Z
Y
100pF
100pF
R = 54Ω
Figure 16. MAX481/MAX485/MAX490/MAX491/MAX1487
Receiver t
Figure 18. MAX483, MAX487–MAX489 Receiver t
500mV/div
500mV/div
B
A
2V/div
2V/div
RO
RO
R
B
A
B
A
PLH
RECEIVER
OUT
400ns/div
20ns/div
V
T
V
T
A
CC
A
CC
= +25°C
= +25°C
= 5V
= 5V
PLH