A method and device for input offset cancellation utilizing a latched comparator that is configurable as a linear amplifier capable of sampling and cancelling offset in the inputs to the latched comparator. The latched comparator is configured according to three control signals for operation in three operating intervals. During a first operating interval, the latched comparator is configured as a linear amplifier that samples the offset at the inputs to the latched comparator. Based on the sampled offset, the linear amplifier cancels the offset in the inputs to the latched comparator. During a second operating interval, the latched comparator is configured to operate as comparator and the inputs to the latch are reset. During a third interval, the latch resolves the inputs to the comparator and generates an output signal indicating the relative values of the inputs.