An electronic device and method for processing an input are provided. The electronic device includes a digitizer pad formed by a single channel and a digitizer pad controller configured to supply a current to the digitizer pad, sense a change in at least one of a frequency and a phase of an electromagnetic field corresponding to a pressure intensity applied by a tip of an external input device, and determine data related to the pressure intensity applied by the external input device based on the change in the at least one of the frequency and the phase of the sensed electromagnetic field.