A 1V 210µW 98dB SFDR Audio ΔΣ modulator in 180nm standard CMOS

Liangdong Chen,Liyuan Liu,Dongmei Li,Chun Zhang,Zhihua Wang

Solid-State and Integrated Circuit Technology（2010）

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摘要

A single-loop second-order 3 bits ΔΣ modulator in 180 nm standard CMOS is presented. The design is intended to achieve high linearity in low-voltage low-power environment. The modulator achieves 89-dB SNDR and 98-dB SFDR in 20Hz~16kHz signal bandwidth, while the power consumption is 210 μW under 1-V supply voltage.

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关键词

standard cmos,cmos integrated circuits,low-voltage low-power environment,low-power electronics,delta-sigma modulation,voltage 1 v,sfdr audio δς modulator,power 210 muw,delta sigma modulation,dynamic range,linearity,capacitors,low power electronics,low voltage,modulation,second order,bandwidth

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