LM139ADT 데이터 시트보기 (PDF) - STMicroelectronics
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LM139ADT Datasheet PDF : 19 Pages
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LM139, LM239, LM339
Typical applications
Figure 14. Time delay generator
VC C = +15 V
10 kΩ 15 kΩ
200 kΩ
10 kΩ
V3
10 MΩ
1/4
LM139
VCC
0t
o
t
A
Input gating signal
VCC
10 kΩ
V(ref.)
V3
VC1 V2
V1
0
t
t0 t1 t2 t3
t4
1/4
LM139
51 kΩ
VC1
10 kΩ
V2
0.001 μF
10 MΩ
1/4
LM139
51 kΩ
V1
51 kΩ
10 kΩ
10 MΩ
1/4
LM139
3 kΩ
V03 VCC
t
o
t3
3kΩ
VO2 VCC
t
o
t
2
3 kΩ
V
O1
VCC
tt
01
Figure 15. Low frequency op amp with offset
adjust
Offset adjust
5V
100 kΩ
R2
RS
R1
el ~
1 MΩ
1 kΩ
1 MΩ
15 kΩ
1/ 4
LM139
0.5 μ F
R1
100 kΩ
5V
2N 2222
eo
Figure 16. Zero crossing detector (single
power supply)
5V
5.1 kΩ
el
100 kΩ
5.1 kΩ
1N4148
100 kΩ
1/ 4
LM139
5.1 kΩ
10 kΩ
20 MΩ
Figure 17. Two-decade high-frequency VCO
Frequency control
voltage input
Vcontrol
VCC
100 kΩ
100 kΩ
0.1 μF
500 pF
1/ 4
LM139
3 kΩ
5.1 kΩ
0.01 μF
1/ 4
LM139
50 kΩ
20 kΩ
20 kΩ
VCC /2
VCC = + 30 V
+250 mV Vcontrol +50 V
700 Hz
fo 100 kHz
1/ 4
LM139
VCC /2
VCC
3 kΩ
Output 1
Output 2
Doc ID 2159 Rev 3
9/19
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