LM324 یک آپ امپ با 4 تقویت کننده تفاضلی داخلی است همچنین پکیج این آی سی SMD بوده و دارای 14 پایه میباشد

These devices consist of four independent high-gain frequency-compensated operational amplifiers that are designed specifically to operate from a single supply over a wide range of voltages. Operation from split supplies also is possible when the difference between the two supplies is 3 V to 30 V (for the LM2902, 3 V to 26 V) and VCC is at least 1.5 V more positive than the input common-mode voltage. The low supply-current drain is independent of the magnitude of the supply voltage.