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BA2902F 데이터시트(PDF) 19 Page - Rohm

부품명 BA2902F
상세설명  Ground Sense Operational Amplifiers
PDF  26 Pages
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
Logo ROHM - Rohm

BA2902F 데이터시트(HTML) 19 Page - Rohm

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Technical Note
BA10358F/FV, BA10324AF/FV, BA2904SF/FV/FVM, BA2904F/FV/FVM
BA2902SF/FV/KN, BA2902F/FV/KN, BA3404F/FVM
19/25
www.rohm.com
2011.08 - Rev.B
© 2011 ROHM Co., Ltd. All rights reserved.
●
Examples of circuit
○
Voltage follower
○
Inverting amplifier
○
Non-inverting amplifier
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
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.
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.
VEE
Vout
Vin
VCC
R2
R1
VEE
R1//R2
Vin
Vout
VCC
VEE
R2
VCC
Vin
Vout
R1



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