Patent ID: 7187319

Claim:
A sampling network, comprising: an analog comparator for comparing an analog input voltage to a plurality of successive voltage inputs; a plurality of capacitors connected in parallel, a first end of each of the capacitors coupled to a first input of the analog comparator to provide one of the successive voltage inputs to the first input of the analog comparator; a first plurality of switches, one connected to each of the plurality of capacitors, for connecting an input voltage to a second end of the capacitor, wherein a bulk of a switch of the first plurality of switches is connected to the input voltage while the input voltage is being sampled and to a power supply voltage while a reference voltage is being sampled; and a second plurality of switches in parallel with the first plurality of switches, one connected to each of the plurality of capacitors, for connecting the reference voltage to a second end of the capacitor, wherein a bulk of a switch of the second plurality of switches is connected to the reference voltage while the reference voltage is being sampled and to a power supply voltage while the input voltage is being sampled.