A Chopper Negative-R Delta-Sigma ADC for Audio MEMS Sensors

作     者：Jamel Nebhen Pietro M.Ferreira 

作者机构：College of Computer Engineering and SciencesPrince Sattam bin Abdulaziz UniversityAlkharj11942Saudi Arabia Universit´e Paris-SaclayCentrale SupelecCNRSLaboratory de G´enie Electrique et Electronique de ParisGif-sur-Yvette91192France Sorbonne UniversiteCNRSLab.de Genie Electrique et Electronique de ParisParis75252France 

出 版 物：《Computer Modeling in Engineering & Sciences》 (工程与科学中的计算机建模（英文）)

年 卷 期：2022年第130卷第2期

页      面：607-631页

核心收录：

学科分类：080902[工学-电路与系统] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 0835[工学-软件工程] 0701[理学-数学] 0811[工学-控制科学与工程] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：M&NEMS sensor △∑ ADC chopper negative-R IoT 1/f noise SNR 

摘      要：This paper presents a proposed low-noise and high-sensitivity Internet of Thing(IoT)system based on an M&NEMS *** IoT device consists of an M&NEMS resistive accelerometer associated with an electronic readout circuit,which is a silicon nanowire and a Continuous-Time(CT)△∑*** first integrator of the△∑ADC is based on a positive feedback DC-gain enhancement two-stage amplifier due to its high linearity and low-noise *** mitigate both the offset and 1/f noise,a suggested delay-time chopper negative-R stabilization technique is applied around the first integrator.A 65-nm CMOS process implements the CT△∑*** supply voltage of the CMOS circuit is 1.2-V while 0.96-mW is the power consumption and 0.1-mm^(2) is the silicon *** M&NEMS microphone and△∑ADC complete circuit are fabricated and *** a working frequency bandwidth of 20-kHz,the measurement results of the proposed IoT system reach a signal to noise ratio(SNR)of ***,it has a measured dynamic range(DR)of 108-dB and a measured signal to noise and distortion ratio(SNDR)of 101.3-dB.