ADM485AR Analog Devices Inc, ADM485AR Datasheet - Page 11

• Manufacturer Part Number: ADM485AR
• Description: IC TX/RX SINGLE RS-485 5V 8SOIC
• Manufacturer: Analog Devices Inc
• Type: Transceiverr

Specifications of ADM485AR

• Rohs Status: RoHS non-compliant
• Number Of Drivers/receivers: 1/1
• Protocol: RS422, RS485
• Voltage - Supply: 4.75 V ~ 5.25 V
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)

SWITCHING CHARACTERISTICS
–V
3V
0V
+V
0V
B
A
O
V
A, B
A, B
O
O
DE
10% POINT
1/2V
90% POINT
Figure 26. Driver Propagation Delay, Rise/Fall Timing
O
1.5V
t
t
t
Figure 27. Driver Enable/Disable Timing
1.5V
PLH
ZL
ZH
t
R
2.3V
2.3V
t
SKEW
=
t
PLH
–
t
PHL
t
t
1.5V
LZ
HZ
1.5V
V
V
OL
OH
t
PHL
+ 0.5V
– 0.5V
90% POINT
t
F
3V
0V
10% POINT
V
V
OL
OH
0V
Rev. F | Page 11 of 16
A, B
RO
RE
RO
RO
0V
t
1.5V
t
Figure 29. Receiver Enable/Disable Timing
t
PLH
0V
ZH
ZL
Figure 28. Receiver Propagation Delay
1.5V
1.5V
1.5V
OUTPUT HIGH
t
OUTPUT LOW
SKEW
=
t
PLH
–
t
PHL
t
t
1.5V
HZ
LZ
t
PHL
0V
V
V
OL
OH
1.5V
+ 0.5V
– 0.5V
ADM485
3V
0V
V
V
OL
V
V
OH
OH
OL