ADM488 Analog Devices, ADM488 Datasheet - Page 6

• Manufacturer Part Number: ADM488
• Description: Full-Duplex/ Low Power/ Slew Rate Limited/ EIA RS-485 Transceivers
• Manufacturer: Analog Devices

Switching Characteristics
ADM488/ADM489
+VO
–VO
Figure 6. Driver Propagation Delay, Rise/Fall Timing
0V
3V
0V
A
B
VO
A–B
RO
10% POINT
1/2VO
Figure 7. Receiver Propagation Delay
90% POINT
T
T
PLH
1.5V
PLH
0V
T
R
1.5V
T
SKEW
1.5V
T
PHL
0V
T
1.5V
PHL
T
90% POINT
F
10% POINT
V
V
T
OH
OL
SKEW
–6–
A, B
A, B
DE
RE
R
R
0V
Figure 9. Receiver Enable/Disable Timing
Figure 8. Driver Enable/Disable Timing
T
1.5V
T
T
T
ZH
ZL
ZH
1.5V
ZL
1.5V
1.5V
2.3V
2.3V
O/P LOW
O/P HIGH
T
T
T
T
1.5V
LZ
HZ
1.5V
LZ
HZ
V
V
V
OL
OL
V
OH
OH
+ 0.5V
+ 0.5V
– 0.5V
– 0.5V
3V
0V
3V
0V
V
V
OL
OH
V
V
OL
OH
0V
REV. 0