The LM2904P is a quad general-purpose operational amplifier from Texas Instruments. It is a low-cost, dual-in-line (DIP) package device that operates over a wide range of supply voltages, from 3V to 32V. This device consists of four independent, internally compensated, voltage-feedback amplifiers. The LM2904P is designed to operate in unity gain applications, allowing a wide range of gains, making it suitable for a variety of signal-conditioning applications, such as filtering, buffering, signal isolation, signal improvement, signal protection, gain control, and digital-to-analog signal conversion. The device features high input impedance, low-offset voltage, and low-distortion, making it an excellent choice for low-level signal applications. The LM2904P is also equipped with overload protection and excellent common-mode and power-supply rejection ratios.