1. A capacitance sensing device, comprising: a first plurality of sensor elements; a second plurality of sensor elements; a capacitance sensing circuit coupled to the first and second pluralities of sensor elements, the capacitance sensing circuit configured to generate a first current representative of a self capacitance of at least one of the first plurality of sensor elements and configured to generate a second current representative of a mutual capacitance of at least one of the second plurality of sensor elements; and a conversion circuit configured to convert the first current to a first digital value and the second current to a second digital value, wherein the capacitance sensing circuit is configured to generate the first current and the second current in response to a signal from a mode selection circuit.