Circuitry for use in comparators

Charge-mode circuitry for use in a comparator to capture a difference between magnitudes of first and second input signals, the circuitry comprising:

• a tail node configured during a capture operation to receive a charge packet;
• first and second nodes conductively connectable to said tail node along respective first and second paths;
• and
• control circuitry configured during the capture operation to control such connections between the tail node and the first and second nodes based on the first and second input signals such that said charge packet is divided between said first and second paths in dependence upon the difference between magnitudes of the first and second input signals,
• wherein:
• the circuitry comprises a controllable charge pump configured to provide said charge packet during said capture operation;
• the controllable charge pump is configured such that said charge packet has a given or predetermined size;
• and
• the controllable charge pump is configured to control said given or predetermined size, and the given or predetermined size is such that voltage levels at said first and second nodes settle at first and second different values during the capture operation in dependence upon the difference between magnitudes of the first and second input signals.