LM124/LM224/LM324/LM2902Low Power Quad Operational AmplifiersGeneral Des criptionThe LM124 series consists of four independent, high gain,internally frequency compensated operational amplifierswhich were designed specifically to operate from a singlepower supply over a wide range of voltages. Operation fromsplit power supplies is also possible and the low powersupply current drain is independent of the magnitude of thepower supply voltage.Application areas include transducer amplifiers, DC gainblocks and all the conventional op amp circuits which nowcan be more easily implemented in single power supplysystems. For example, the LM124 series can be directlyoperated off of the standard +5V power supply voltage whichis used in digital systems and will easily provide the requiredinterface electronics without requiring the additional ±15Vpower supplies.Unique Characteristicsn In the linear mode the input common-mode voltagerange includes ground and the output voltage can alsoswing to ground, even though operated from only asingle power supply voltagen The unity gain cross frequency is temperaturecompensatedn The input bias current is also temperature compensatedAdvantagesn Eliminates need for dual suppliesn Four internally compensated op amps in a singlepackagen Allows directly sensing near GND and VOUT also goesto GNDn Compatible with all forms of logicn Power drain suitable for battery operationFeaturesn Internally frequency compensated for unity gainn Large DC voltage gain 100 dBn Wide bandwidth (unity gain) 1 MHz(temperature compensated)n Wide power supply range:Single supply 3V to 32Vor dual supplies ±1.5V to ±16Vn Very low supply current drain (700 μA)—essentiallyindependent of supply voltagen Low input biasing current 45 nA(temperature compensated)n Low input offset voltage 2 mVand offset current: 5 nAn Input common-mode voltage range includes groundn Differential input voltage range equal to the powersupply voltagen Large output voltage swing 0V to V+ − 1.5V