BU7291G Datasheet, PDF (22/27 Pages) Rohm – High Speed with Low Voltage CMOS Operational Amplifiers

BU7291G,BU7291SG,BU7255HFV,BU7255SHFV,
BU7495HFV,BU7495SHFV,BU7481G,BU7481SG,BU7485G,BU7485SG,BU5281G,BU5281SG
●Test circuit 3 Channel Separation
Technical Note
R2=100[kΩ]
R2=100[kΩ]
R1=1[kΩ]
VIN
R1//R2
VDD
R1=1[kΩ]
VDD
VSS
V
～
VOUT1
=1[Vrms]
R1//R2
VSS
V
～ _VOUT2
Fig.143 Test circuit 3
CS=20Log ^{100 × VOUT1}
VOUT2
●Schematic Diagram
○Input-Output Full Swing BU7291/BU7255 family
VDD
Vbias
IN+
class
IN－
AB control
OUT
VSS
Vbias
Fig.144 Input-Output Full Swing Schematic Diagram
○Ground Sense BU7495/BU7481/BU7485/BU5281 family
VDD
Vbias
IN+
class
IN‐
AB control
OUT
VSS
Vbias
Fig.145 Ground Sense Schematic Diagram
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22/26
2010.12 - Rev.A