A capacitive touch panel consists of a touch panel having a plural conductive wires, a multiplex selector electrically connected to the plural conductive wires of the touch panel, a first switch electrically connected to the multiplex selector, a first resistor having a first resistor value, a second switch electrically connected to the resistor and the first switch, a capacitor having a capacitance value, the capacitor electrically connected to the first switch and the second switch, a third switch electrically connected to the capacitor, an Analogue to Digital converter, a fourth switch electrically connected to the Analogue to Digital converter and the third switch, and an integrating circuit electrically connected to the second switch and the fourth switch.