An analog-to-digital converter comprises a first set of comparators configured for generating a coarse digital measurement of an analog input signal, and a second set of comparators for performing a fine digital measurement of the analog input signal. The second set comprises a plurality of dynamic comparators, wherein each dynamic comparator is configurable for being activated by a clock signal. An activation circuit processes the coarse measurement and an input clock signal for generating a set of activation signals, which activate a subset of the dynamic comparators to generate the fine digital measurement.