The LM324N is a quad operational amplifier, designed to operate from a single power supply over a wide range of voltages. It is manufactured by various semiconductor companies and is available in a variety of package types including PDIP, SOIC, and TSSOP. The LM324N is specifically designed to be used in general-purpose applications, such as amplifiers, comparators, and voltage followers. The LM324N features four independent operational amplifiers in one package, making it a convenient and cost-effective option for circuit designs that require multiple amplifiers. With a low supply current and a wide operating voltage range, the LM324N is suitable for battery-powered or portable applications. The pinout of the LM324N consists of 14 pins, with each pin serving a specific function such as power supply input, output, and control voltage input. With its versatile capabilities and ease of use, the LM324N is widely used in various electronic circuits and systems, making it a popular choice among engineers and hobbyists.