Datasheet

Typical applications LM139, LM239, LM339
8/19 Doc ID 2159 Rev 3
5 Typical applications
Figure 8. Basic comparator Figure 9. Driving CMOS
V
CC
= 5 V
15 kΩ
V
O
+V
(ref)
1/4
LM139
-V
(ref)
5 V
100 kΩ
&
1/ 4
LM139
+V
(ref)
-V
(ref)
Figure 10. Driving TTL Figure 11. Low frequency op amp
5 V
10 kΩ
+V
(ref)
&
&
1/ 4
LM139
-V
(ref)
5 V
15 k
Ω
e
o
0.5 μ F
100 kΩ
e
l
1 kΩ
~
1/4
LM139
A
V
= 100
Figure 12. Low frequency op amp Figure 13. Transducer amplifier
5 V
15 kΩ
0.5 μF
100 kΩ
1 kΩ
~
2N 2222
(e
o
= 0 V for e
l
= 0 V)
1/ 4
LM139
e
o
e
l
A
V
= 100
5 V
10 kΩ
e
o
20 MΩ
3 kΩ
Magnetic pick-up
10 kΩ
1/ 4
LM139