Rohm Productdetail
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.
Specifications:
Grade
Standard
Power supply(Min.)[V](+5V=5, +/-5V=10)
1.7
Power supply(Max.)[V](+5V=5, +/-5V=10)
5.5
Channel
1
Circuit Current(Typ.)[mA]
0.0085
Input Offset Voltage(Max.)[mV]
6.0
Input Bias Current(Typ.)[nA]
0.001
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
Features:
・Ultra Low Power : 8.5[μA]・High large signal voltage gain
・Wide temperature range
-40[℃] ～ +85[℃]
・Low input bias current 1[pA] (Typ.)
・Internal ESD protection
Human body model (HBM) ±4000 [V] (Typ.)
・Internal phase compensation
・Low operating supply voltage
+1.7[V] ～ +5.5[V] (single supply)