The LM224D is a quad operational amplifier in an 8-pin mini-DIP package from Texas Instruments. It is a low power, monolithic general-purpose operational amplifier with a wide range of uses in applications such as signal conditioning, active filters, and comparators. The LM224D is equipped with internal compensation for unity gain stability as well as galvanic isolation to protect the device from voltage surges. Additionally, the device features low power quiescent current draw of 1.2 mA, low offset voltage of 100 µV, and wide bandwidth of 10 MHz. It is suitable for a wide range of home and industrial applications.