Low Power Ground Sense Operational Amplifier - BU7421G

Ultra Low Power CMOS Op-Amp BU7265/BU7205/BU7271/BU7245 family (Input-Output Full Swing) and BU7411 / BU7421 / BU7475 (ground sense) are monolithic IC. Supply current is very small (BU7265/BU7411 family: 0.35[µA], BU7421 family: 8.5[µA], BU7271 family: 8.6[µA]), and VDD range is +1.6[V] ~ +5.5[V] (BU7411 family: single supply), so operable with low voltage. It’s suitable for applications of portable equipments and battery movements.

Part NumberStatusPackageUnit QuantityMinimum Package QuantityPacking TypeRoHS
BU7421G-TRActiveSSOP530003000TapingYes

BU7421G Data Sheet

Specifications
GradeStandard
Power supply(Min.)[V](+5V=5, +/-5V=10)1.7
Power supply(Max.)[V](+5V=5, +/-5V=10)5.5
Channel1
Circuit Current(Typ.)[mA]0.0085
Input Offset Voltage(Max.)[mV]6.0
Input Bias Current(Typ.)[nA]0.0010
Slew Rate(Typ.)[V/µS]0.05
Input Voltage Range [V]VSS to VDD-1.2
Output Voltage Range [V]VSS+0.1 to VDD-0.1
Voltage gain(Typ.)[dB]100.0
Output current(Typ.)[mA]4.0
CMRR(Typ.)[dB]60.0
PSRR(Typ.)[dB]80.0
GBW(Typ.)[MHz]0.09
Operating Temperature (Min.)[°C]-40
Operating Temperature (Max.)[°C]85
Applications
  • Coin Processing Machines
  • Portable Data Terminal
  • Meter for Medical Treatments Portable
  • Barcode Scanner
  • Digital Multimeter: Handy Type
  • Digital Stethoscope
  • Single Board Computer
  • Network Attached Storage
  • Notebook PC
  • Mobile Phone
  • X-ray Inspection Machine for Security
  • Monitor for Medical
  • CT Scanner
  • ECG(EKG)
  • Intercom / Baby Monitor
  • Surveillance Camera for Network
  • Fingerprint Authentication Device
  • Machine Vision Camera for Industrial
  • Pulse Oximeter
  • Display for EMS
  • Digital Multimeter: Bench Type
  • Netbook
  • Smartphone / Tablet PCs
Technical Documents
Pin Configuration
Related Product
PART NUMBERProduct SeriesDatasheet
TLR341GLow Power Operational Amplifiers: Ground SenseDatasheet
LM358FStandard Operational Amplifiers: Ground SenseDatasheet
LM358FJStandard Operational Amplifiers: Ground SenseDatasheet
LM358FVStandard Operational Amplifiers: Ground SenseDatasheet
LM358FVTStandard Operational Amplifiers: Ground SenseDatasheet
LM324FStandard Operational Amplifiers: Ground SenseDatasheet
BU7421SG BU7421SG
TLR344F TLR344F
LM358FVT LM358FVT
Spice Model BU7421SG
Application Note BU7475SHFV
Application Note BA12004BF
Application Note BA12004BF
Package Information BU4SU69G2
Reliability Information BU7421G
Package Information BU4SU69G2
Part Explanation BA12004BF
Package Information BU7421G