A driver integrated circuit for external compensation and a display device including the same are disclosed. The driver integrated circuit includes a sensing unit including a plurality of sensing switches, that is connected to a plurality of pixels through a sensing channel and operates differently depending on a current sensing mode and a voltage sensing mode, the sensing unit configured to sense electrical characteristics of the pixels input from the sensing channel, a sample and hold unit configured to sample analog sensing data corresponding to the electrical characteristics of the pixels, and an analog-to-digital converter (ADC) configured to convert the analog sensing data sampled by the sample and hold unit into digital sensing data.