LM239P View Datasheet(PDF) - STMicroelectronics
Part Name
Description
MFG CO.
'LM239P' PDF : 10 Pages View PDF
LM139,A - LM239,A - LM339,A
TYPICAL APPLICATIONS (continued)
TWO-DECADE HIGH-FREQUENCY VCO
VCC
100kΩ
Frequency control
voltage input
vcon trol
100kΩ
10kΩ
0.1µF
500pF
1/4
LM139
3kΩ
5.1kΩ
0.01µF
1/4
LM139
50kΩ
20kΩ
20kΩ
VCC /2
VCC = +30V
+250mV Vcontrol +50V
700 Hz of 100kHz
1/4
LM139
VCC /2
VCC
3kΩ
Output 1
Output 2
LIMIT COMPARATOR
CRYSTAL CONTROLLED OSCILLATOR
VCC (12V)
VCC = 15V
V (ref)
hig h
2R S
RS
10kΩ
1/4
LM139
Lamp
eI ~
V (ref)
low
2R S
1/4
LM139
2N 2222
SPLIT-SUPPLY APPLICATIONS
ZERO CROSSING DETECTOR
15V
200kΩ
0.1µF
100kΩ
1/4
LM139
2kΩ
VCC
0
eo
200kΩ
f = 100kHz
COMPARATOR WITH A NEGATIVE
REF ERE NCE
15V
eI ~
1/4
LM139
5.1k Ω
eo
15V
eI ~
1/4
LM139
5V
15V
5.1k Ω
eo
7/10
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