Complete, Isolated RS-485/RS-422
Data Interface
_____________________________Typical Operating Characteristics (continued)
(V
CC_
= 5V, FS = V
, DE´ = V , V
CC_ CC_ DI´
= 0V to 5V at 1.25MHz, T = +25°C, unless otherwise noted.)
A
MAX1480A/MAX1490A
MAX1480A/MAX1490A
RECEIVER t
PHL
RECEIVER t
PLH
MAX1480/90-21
MAX1480/90-22
RECEIVER
INPUT A
1V/div
RECEIVER
INPUT B
1V/div
RECEIVER
INPUT B
1V/div
RECEIVER
INPUT A
1V/div
RO
RO
2V/div
2V/div
20ns/div
20ns/div
V
= 5.0V, DE´= V
CC_
CC_
V
= 5.0V, DE´= V
CC_ CC_
DI´ = 0V TO 5V AT 1.25MHz
DI´ = 0V TO 5V AT 1.25MHz
MAX1480B/MAX1480C/MAX1490B
MAX1480B/MAX1480C/MAX1490B
RECEIVER t
RECEIVER t
PHL
PLH
MAX1480/90-23
MAX1480/90-24
RECEIVER
INPUT A
1V/div
RECEIVER
INPUT A
1V/div
RECEIVER
INPUT B
1V/div
RECEIVER
INPUT B
1V/div
RO
RO
2V/div
2V/div
200ns/div
500ns/div
V
= 5.0V, DE´= V
CC_
CC_
V
= 5.0V, DE´= V
CC_ CC_
DI´= 0V TO 5V AT 125kHz
DI´= 0V TO 5V AT 125kHz
POWER-UP DELAY TO DRIVER OUTPUTS VALID
DRIVER
OUTPUT B
(Z FOR MAX1490)
2V/div
SD
2V/div
1µs/div
V
V
= 0V
DI´
= 5V TO 0V AT 1kHz
SD
_______________________________________________________________________________________
9
MAXIM [ MAXIM INTEGRATED PRODUCTS ]
