Datasheet

Technical Note
BA10358F/FV, BA10324AF/FV, BA2904SF/FV/FVM, BA2904F/FV/FVM
BA2902SF/FV/KN, BA2902F/FV/KN, BA3404F/FVM
19/25
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2011.08 - Rev.B
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●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