The present invention introduces a touch sensing apparatus capable of adjusting an Rx frequency band, and the touch sensing apparatus can adjust the width of the Rx frequency band of a driving signal which is applied from a driving electrode of a touch screen panel and transferred to a receiving electrode of the touch screen panel, using a high pass filter and a low pass filter which are implemented with a differentiator and an integrator, respectively. The touch sensing apparatus can adjusting the resistances of a plurality of resistors and the capacitance of a capacitor, thereby selectively receiving a driving signal at each frequency and amplifying the received driving signal to a predetermined magnitude. Thus, since the touch sensing apparatus does not requires a separate filter for removing noise contained in the driving signal, the system can be simplified.