题目/Title：
                        A 1.1 mW 87 dB dynamic range ΔΣ modulator for audio applications

作者/Author：刘力源,陈良栋,李冬梅,王志华,魏少军
                        Liyuan Liu,Liangdong Chen,Dongmei Li,Zhihua Wang,Shaojun Wei

期刊/Journal：半导体学报 Chinese Journal of Semiconductors

年份/Issue Date：2010.May

卷（期）及页码/Volume（No.）&pages：Vol.31, No.5, pp. 0550031 - 0550037

摘要/Abstract：

This paper presents a 1.1 mW 87 dB dynamic range third orderΔΣmodulator implemented in 0.18μm CMOS technology for audio applications.By adopting a feed-forward multi-bit topology,the signal swing at the output of the first integrator can be suppressed.A simple current mirror single stage OTA with 34 dB DC gain working under 1 V power supply is used in the first integrator.The prototype modulator achieves 87 dB DR and 83.8 dB peak SNDR across the bandwidth from 100 Hz to 24 kHz with 3 kHz input signal.