LM124A 데이터 시트보기 (PDF) - STMicroelectronics

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LM124A

LOW POWER QUAD OPERATIONAL AMPLIFIERS

STMicroelectronics 

TYPICAL SINGLE - SUPPLY APPLICATIONS

ACTIVER BANDPASS FILTER

LM124A-LM224A-LM324A

HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER

For RR-----12-- = RR-----43--

(CMRR depends on this resistor ratio match)

Fo = 1kHz

Q = 50

Av = 100 (40dB)

e0





1

+

RR-----43--

(e2 - e1)

As shown e0 = (e2 - e1)

USING SYMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT (GENERAL CONCEPT)

9/13

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