A low-power inverter-based Σ△ analog-to-digital converter for audio applications

被引：0

作者：

LIU XiaoPeng ^{[1
]}

HAN Yan ^{[1
]}

HAN XiaoXia ^{[1
]}

LUO Hao ^{[1
]}

Ray C C CHEUNG ^{[2
]}

CAO TianLin ^{[1
]}

机构：

[1] Institute of Microelectronics & Photoelectronics, Zhejiang University

[2] Department of Electronic Engineering, City University of Hong Kong

来源：

Science China(Information Sciences) | 2014年 / 57卷 / 04期

关键词：

Σ△; ADC; class-C inverter; low-power; high-resolution; gain-boost;

D O I：

暂无

中图分类号：

TN792 [];

学科分类号：

080902 ;

摘要：

This paper presents a design for a low-power,high-resolution audio Σ△ analog-to-digital converter(ADC)based on a novel gain-boost class-C inverter.The gain-boost class-C inverter behaves as a sub-threshold amplifier,thereby minimizing power dissipation.The proposed ADC chip is fabricated in a SMIC 65-nm CMOS process with a die area of 0.63 mm2.With 1.2 V of supply voltage,the ADC chip achieves a peak signal-tonoise-plus-distortion-ratio(SNDR)of 92 dB and a dynamic range(DR)of 97 dB over the 20 kHz audio band,consuming only 1.13 mW.These results make the ADC particularly suitable for portable electronics applications.

引用

页码：218 / 227

页数：10

共 5 条

[1]

A low-noise fully-differential CMOS preamplifier for neural recording applications[J]. ZHANG Xu,PEI WeiHua,HUANG BeiJu,GUAN Ning & CHEN HongDa State Key Laboratory on Integrated Optoelectronics,Institute of Semiconductors,Chinese Academy of Sciences,Beijing 100083,China.Science China(Information Sciences). 2012(02)

[2]

Low-power design and application based on CSD optimization for a fixed coefficient multiplier[J]. LIU HongXia & YUAN Bo Key Laboratory of Ministry of Education for Wide Band-Gap Semiconductor Devices,School of Microelectronics,Xidian University,Xi’an 710071,China.Science China(Information Sciences). 2011(11)

[3] A continuous-time/discrete-time mixed audio-band sigma delta ADC [J].

刘岩 ;

华斯亮 ;

王东辉 ;

侯朝焕 .

半导体学报, 2011, 32 (01) :97-102

[4] A 65-nm low-power high-linearity ΣΔ ADC for audio applications [J].

Liao Lu ;

Sun Ying ;

Han Yan ;

Liang Guo ;

Luo Hao ;

Liu XiaoPeng .

SCIENCE CHINA-INFORMATION SCIENCES, 2014, 57 (04) :1-7

[5]

The CMOS gain-boosting technique[J] . Klaas Bult,Govert J. G. M. Geelen.Analog Integrated Circuits and Signal Processing . 1991 (2)

← 1 →