Comparator Ic Lm324. It is composed of four groups of completely independent operational amplifiers. While any op amp can be made to work as a voltage comparator the lm393 proves itself to be advantages by providing an open collector output making it suitable to drive loads.
This ic has 4 independent operational amplifiers on a single chip. This a low power quad operational amplifier and it has high stability bandwidth which was designed to operate from a single power supply over a wide range of voltages. When the voltage at the positive input is higher than the voltage at the negative input the op ap lm324 outputs a low level.
Negative power supply included in common mode input and output range eliminates the need of external biasing.
The lm324 series are low cost quad operational amplifiers with true differential inputs. The lm324 operational amplifier ic can be worked as a comparator. The operational amplifier lm324 ic can work like a normal comparator and it comprises four independent op amps internally. The default input offset voltage is very low which is of magnitude 2mv.
