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BA2902F 데이터시트(PDF) 39 Page - Rohm

부품명 BA2902F
상세설명  Ground Sense Operational Amplifiers
PDF  56 Pages
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제조업체  ROHM [Rohm]
홈페이지  http://www.rohm.com
Logo ROHM - Rohm

BA2902F 데이터시트(HTML) 39 Page - Rohm

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Datasheet
www.rohm.com
TSZ02201-0RAR0G200130-1-2
© 2013 ROHM Co., Ltd. All rights reserved.
39/52
23.Jan.2014 Rev.003
TSZ22111･15･001
BA10358xx, BA10324Axx, BA2904xxx, BA2904Sxxx, BA2904Wxx
BA2902xx, BA2902Sxx
Examples of circuit
○Voltage follower
○Inverting amplifier
○Non-inverting amplifier
Voltage gain is 0 dB.
This circuit controls output voltage (OUT) equal input
voltage (IN), and keeps OUT with stable because of
high input impedance and low output impedance.
OUT is shown next formula.
OUT=IN
For inverting amplifier, IN is amplified by voltage gain
decided R1 and R2, and phase reversed voltage is
output.
OUT is shown next formula.
OUT=-(R2/R1)・IN
Input impedance is R1.
For non-inverting amplifier, IN is amplified by voltage
gain decided R1 and R2, and phase is same with IN.
OUT is shown next formula.
OUT= (1+R2/R1)・IN
This circuit realizes high input impedance because
Input
impedance
is
operational
amplifier’s
input
Impedance.
VEE
OUT
IN
VCC
R2
R1
VEE
R1//R2
IN
OUT
VCC



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