An input device, including: a plurality of sensor electrodes configured to receive a first plurality of capacitive signals and a second plurality of capacitive signals; and a processing system operatively connected to the plurality of sensor electrodes and configured to: operate in a superdoze mode by receiving the first plurality of capacitive signals from a single receive channel connected to the plurality of sensor electrodes; execute an analysis of the first plurality of capacitive signals; and operate, based on the analysis, in an active mode by: driving a plurality of transmitter electrodes with a first drive pattern of a sensing signal; and receiving the second plurality of capacitive signals associated with the first drive pattern from a plurality of receive channels connected to the plurality of sensor electrodes. The superdoze mode requires less power than the active mode.