BU7241SFVM-TR View Datasheet(PDF) - ROHM Semiconductor

Part Name

Description

Manufacturer

BU7241SFVM-TR

Operational Amplifiers / Comparators Full Swing Low Voltage Operation CMOS Operational Amplifiers

ROHM Semiconductor 

BU7261/BU7261S family, BU7241/BU7241S family, BU7295/BU7295S family, BU7275/BU7275S family

BU7262/BU7262S family, BU7242/BU7242S family, BU7264/BU7264S family, BU7244/BU7244S family Technical Note

●Examples of circuit

○Adder circuit

R3

R1

Vin1

Vin2

R2

VDD

VSS

Vout

Adder circuit output the voltage that added up Input

voltage. A phase of the output voltage turns over,

because non-inverting circuit is used.

Vout is shown next formula.

Vout = -R3(Vin1/R1+Vin2/R2)

When three input voltage is as above, it connects

with input through resistance like R1 and R2.

Fig. 193 Adder circuit

○Differential amplifier

R1

Vin1

R3

Vin2

R4

R2

VDD

VSS

Vout

Differential amplifier output the voltage

that amplified a difference of input voltage.

In the case of R1=R3=Ra, R2=R4=Rb

Vout is shown next formula.

Vout = -Rb/Ra(Vin1-Vin2)

Fig. 194 Differential amplifier

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2010.12 - Rev.A

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