题目/Title：Analysis and simulation of a 2nd order ΔΣ modulator with single-comparator multi-bit quantizer

作者/Author：
                        Liyuan Liu,Dongmei Li,Yafei Ye,Zhihua Wang

会议/Conference：RFIT 2011

地点/Location：Beijing

年份/Issue Date：2011.30 Nov.-2 Dec.

页码/pages：pp. 189 - 192

摘要/Abstract：
A 2nd order ΔΣ modulator is presented. The feed forward topology with multi-bit quantizer is adopted. The digital summing is used. Single comparator successive approximation quantizer is proposed. Non-ideal effects of the quantizer such as comparator offset, components mismatch are modeled and simulated. Power consumption of the quantizer is given analytically. This topology is suitable to build high resolution ΔΣ modulator with low power consumption under low voltage.