@inproceedings{5e163d548883425e8023336dd90bee50,

title = "A low power small area multi-bit quantizer with a capacitor string in Sigma-Delta modulator",

abstract = "An ultra-low power area-efficient fully differential multi-bit quantizer used in Sigma-Delta modulator (SDM) is presented. The quantizer is named as capacitor-string area-efficient (CSAE) quantizer since instead of the typical resistor string, it employs a capacitor string to avoid static power consumption. Furthermore, a novel circuit configuration with saving half number of comparators is applied to it to save area for cutting cost of chip. The novel multi-bit quantizer is designed in a standard 0.35μm CMOS process. Simulation results show that a 17-level CSAE quantizer clocked at 32 kHz achieves a power consumption of 0.225μW when the power supply voltage is 1.8V. Its area is 0.145mm2. Compared with traditional design, the proposed CSAE quantizer saves 81% power and 37% area and thus is suitable for ultra-low power applications.",

keywords = "Area-efficient, CSAE multi-bit quantizer, SDM, Ultra-low power",

author = "Xuxia Wang and Jian Xu and Xiaobo Wu",

year = "2010",

month = dec,

day = "1",

language = "English (US)",

isbn = "9789881701282",

series = "Proceedings of the International MultiConference of Engineers and Computer Scientists 2010, IMECS 2010",

pages = "1115--1119",

booktitle = "Proceedings of the International MultiConference of Engineers and Computer Scientists 2010, IMECS 2010",

note = "International MultiConference of Engineers and Computer Scientists 2010, IMECS 2010 ; Conference date: 17-03-2010 Through 19-03-2010",

}