Datasheet

©2004 Fairchild Semiconductor Corporation www.fairchildsemi.com
FOD0721, FOD0720, FOD0710 Rev. 1.0.9 5
FOD0721, FOD0720, FOD0710 — High CMR, 25Mbit/sec Logic Gate Optocoupler
Typical Performance Curves
Figure 1. Typical Output Voltage vs. Input Voltage
Figure 3. Typical Propogation Delay vs. Ambient Temperature
(FOD0710)
Figure 4. Typical Pulse Width Distortion vs. Ambient Temperature
(FOD0710)
Figure 5. Typical Propogation Delay vs. Ambient Temperature
(FOD0721/FOD0720)
Figure 6. Typical Pulse Width Distortion vs. Ambient Temperature
(FOD0721/FOD0720)
Figure 2. Typical Input Voltage Switching Threshold vs.
Input Supply Voltage
0
1
2
3
4
5
012345
V
O
-Output Voltage (V)
V
I
-Input Voltage (V)
1.4
1.5
1.6
1.7
1.8
1.9
4.50 4.75 5.00 5.25 5.50
V
ITH
-Typical Input Voltage Switching Threshold (V)
V
DD1
-Input Supply Voltage (V)
V
DD2
=5.0V
-4 0 -20 0 20 406080100
t
P
-Propagation Delay (ns)
T
A
-Ambient Temperature (°C)
-4 0 -20 0 20 4 06080100
PWD - Pulse Width Distortion (ns)
T
A
-Ambient Temperature (°C)
Frequency = 6.25MHz
Dut y Cycl e = 50%
V
DD1
=V
DD2
=5.0V
18
20
22
24
26
28
-40 -20 0 20 406080100
t
P
-Propagation Delay (ns)
T
A
-Ambient Temperature (°C)
t
PHL
t
PLH
Frequency = 12.5MHz
Duty Cycle = 50%
V
DD1
=V
DD2
=5.0V
-40 -20 0 20 406080100
PWD - Pulse Width Distortion (ns)
T
A
-Ambient Temperature (°C)
Frequency = 12.5MHz
Duty Cycle = 50%
V
DD1
=V
DD 2
=5.0V
18
19
20
21
22
23
24
25
26
t
PLH
t
PHL
-3
-2
-1
0
1
2
3
4
-3
-2
-1
0
1
2
3
4
5