BA10324AKN 데이터 시트보기 (PDF) - ROHM Semiconductor

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BA10324AKN

Operational Amplifiers / Comparators Ground Sense Operational Amplifiers

ROHM Semiconductor 

BA10358F/FV, BA10324AF/FV, BA2904SF/FV/FVM, BA2904F/FV/FVM

BA2902SF/FV/KN, BA2902F/FV/KN, BA3404F/FVM

●Examples of circuit

○Voltage follower

Technical Note

VCC

Vout

Voltage gain is 0 [dB].

This circuit controls output voltage (Vout) equal input

voltage (Vin), and keeps Vout with stable because of

high input impedance and low output impedance.

Vout is shown next formula.

Vout=Vin

Vin

VEE

○Inverting amplifier

R1

Vin

R2

VCC

R1//R2

VEE

○Non-inverting amplifier

R1

R2

VCC

Vin

VEE

Vout

For inverting amplifier, Vin is amplified by voltage gain

decided R1 and R2, and phase reversed voltage is

outputed.

Vout is shown next formula.

Vout=-(R2/R1)・Vin

Input impedance is R1.

Vout

For non-inverting amplifier, Vin is amplified by voltage

gain decided R1 and R2, and phase is same with Vin.

Vout is shown next formula.

Vout=(1+R2/R1)・Vin

This circuit realizes high input impedance because

Input impedance is operational amplifier’s input

Impedance.

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© 2011 ROHM Co., Ltd. All rights reserved.

19/25

2011.08 - Rev.B

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