LM324 is a 14pin IC consisting of four independent operational amplifiers (op-amps) compensated in a single package. Op-amps are high gain electronic voltage amplifier with differential input and, usually, a single-ended output. The output voltage is many times higher than the voltage difference between input terminals of an op-amp.
These op-amps are operated by a single power supply LM324 and need for a dual supply is eliminated. They can be used as amplifiers, comparators, oscillators, rectifiers etc. The conventional op-amp applications can be more easily implemented with LM324.
Output of 1st comparator
Inverting input of 1st comparator
Non-inverting input of 1st comparator
Supply voltage; 5V (up to 32V)
Non-inverting input of 2nd comparator
Inverting input of 2nd comparator
Output of 2nd comparator
Output of 3rd comparator
Inverting input of 3rd comparator
Non-inverting input of 3rd comparator
Non-inverting input of 4th comparator
Inverting input of 4th comparator
Output of 4th comparator