LM139A 데이터 시트보기 (PDF) - STMicroelectronics
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LM139A Datasheet PDF : 10 Pages
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LM139,A - LM239,A - LM339,A
TYPICAL APPLICATIONS (continued)
TIME DELAY GENERATOR
VCC = +15V
10kΩ 15kΩ
200kΩ
3kΩ
10MΩ
10kΩ
V3
1/4
LM139
VO3 VCC
t0
t3
10kΩ
VCC
0 tO tA
V(ref . )
INPUT GATING SIGNAL
VCC
V3
VC1 V2
V1
0
t
t0 t1 t2 t3
t4
1/4
LM139
51kΩ
VC1
V2
0.001µF
10kΩ
51kΩ
V1
51kΩ
10kΩ
10MΩ
1/4
LM139
10MΩ
1/4
LM139
3kΩ
VO2 VCC
t0 t2
3kΩ
V
O1
VCC
t0 t1
LOW FREQUENCY OP AMP WITH OFFSET
ADJUST
5V
Offset Adjust 100kΩ
R2
Rs
RI
eI ~
1MΩ
1kΩ
1MΩ
15kΩ
1/4
LM139
0.5µF
R1
100kΩ
5V
2N 2222
eo
ZERO CROSSING DETECTOR
(single power supply)
5V
5.1kΩ
eI
100kΩ
5.1kΩ
1N4148
100kΩ
5.1kΩ
1/2
LM139
10kΩ
20MΩ
6/10
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