Time-interleaved noise-shaping successive-approximation analog-to-digital converter

A time-interleaved noise-shaping successive-approximation analog-to-digital converter, comprising:

• a first successive-approximation channel, having a first set of successive-approximation registers and a first coarse comparator coupled to the first set of successive-approximation registers to coarsely adjust the first set of successive-approximation registers;
• a second successive-approximation channel, having a second set of successive-approximation registers and a second coarse comparator coupled to the second set of successive-approximation registers to coarsely adjust the second set of successive-approximation registers;
• a fine comparator, coupled to the first set of successive-approximation registers and the second set of successive-approximation registers, to finely adjust the first set of successive-approximation registers and the second set of successive-approximation registers;
• and
• a noise-shaping circuit, sampling residues of the first successive-approximation channel for the fine comparator to finely adjust the second set of successive-approximation registers, and sampling residues of the second successive-approximation channel for the fine comparator to finely adjust the first set of successive-approximation registers.