LM324 - Single Supply Quad Op-Amp

LM324 consist of four independent high-gain frequency-compensated operational amplifiers (op-amp) that are designed specifically to operate from a single supply over a wide range of voltages. The LM324 have  several  distinct  advantages  over standard operational amplifier types in single supply applications. The quad  amplifier  can  operate  at  supply voltages  as  low  as  3.0  V  or  as high  as  32  V  with  quiescent  currents  about  one−fifth  of  those associated with the MC1741 (on a per amplifier basis). The common mode input range includes the negative supply, thereby eliminating the necessity for external biasing components in many applications. The output voltage range also includes the negative power supply voltage.