LM139AP 데이터 시트보기 (PDF) - STMicroelectronics

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LM139AP

LOW POWER QUAD VOLTAGE COMPARATORS

STMicroelectronics 

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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