An 18-bit 2-2 MASH delta-sigma modulator for isolated amplifier

被引：0
|
作者：
Yu, Wenxin [1 ]
He, Lenian [1 ]
Xi, Jianxiong [1 ]
机构：
[1] Zhejiang Univ, Inst VLSI Design, Hangzhou 310058, Peoples R China
来源：
MICROELECTRONICS JOURNAL | 2023年 / 136卷
关键词：
Isolated amplifier; MASH; Delta-sigma modulator; High precision;
D O I：
10.1016/j.mejo.2023.105794
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
This paper presents an 18-bit 2-2 MASH delta-sigma modulator (DSM) for the isolated amplifier. Combining the cascade of integrators with feedforward (CIFF) structure and the cascade of integrators with feedback (CIFB) structure, the DSM effectively results in reduced harmonic distortion. Gain boost and slew rate (SR) boost techniques are used to enhance the performance of the first stage integrator. To reduce low-frequency noise, the chopper technique is adopted as well. The DSM was fabricated in a 0.18 mu m CMOS process with an active area of 0.90 mm2, dissipating 29.70 mW under a 3.3 V supply with the Schreier figure-of-merit (FoMs) 170.00 dB. The 108.71 dB signal-to-noise and distortion ratio (SNDR) and 17.77 bits the effective number of bits (ENOB) are achieved by simulation in a 20 kHz bandwidth.
引用
收藏
页数：8
相关论文
共 50 条
  • [31] A Low-Spur MASH Delta-Sigma Modulator With an Adaptive Length Extension Technique
    Ding, Xin
    Yan, Chenggang
    Li, Xin
    Wu, Jianhui
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2020, 67 (12) : 2818 - 2822
  • [32] SMASH-MASH Delta-Sigma Modulator using Noise-Shaping Quantizers
    Han, Changsok
    Kim, Taewook
    Maghari, Nima
    2016 14TH IEEE INTERNATIONAL NEW CIRCUITS AND SYSTEMS CONFERENCE (NEWCAS), 2016,
  • [33] A 1.2V Power Adaptable 95-to-67dB DR 2-2 Mash Delta-Sigma ADC with Configurable OSR
    Wu, Haijun
    Li, Bin
    Zhang, Huabin
    Zou, Linli
    Zeng, Longyue
    Li, Zhengping
    2013 IEEE INTERNATIONAL CONFERENCE OF ELECTRON DEVICES AND SOLID-STATE CIRCUITS (EDSSC), 2013,
  • [34] Sturdy-MASH Delta-Sigma Modulator with Improved Resolution Using Noise-coupling Multi-bit Quantizer
    Ucar, Akif Omer
    Gerfers, Friedel
    2022 IEEE 65TH INTERNATIONAL MIDWEST SYMPOSIUM ON CIRCUITS AND SYSTEMS (MWSCAS 2022), 2022,
  • [35] On the Design of a 2-2-0 MASH Delta-Sigma-Pipeline Modulator
    Mohammadi, Reza
    Shamsi, Hossein
    Abedinkhan, Mazyar
    2012 19TH IEEE INTERNATIONAL CONFERENCE ON ELECTRONICS, CIRCUITS AND SYSTEMS (ICECS), 2012, : 348 - 351
  • [36] A 72.9-dB SNDR 20-MHz BW 2-2 Discrete-Time Sturdy MASH Delta-Sigma Modulator Using Source-Follower-Based Integrators
    Kwak, Yong-Sik
    Cho, Kang-Il
    Kim, Ho-Jin
    Lee, Seung-Hoon
    Ahn, Gil-Cho
    2017 IEEE ASIAN SOLID-STATE CIRCUITS CONFERENCE (A-SSCC), 2017, : 289 - 292
  • [37] A 14-bit Oversampled Delta-Sigma Modulator for Silicon Condenser Microphones
    Chiang, Cheng-Ta
    Huang, Yu-Chung
    I2MTC: 2009 IEEE INSTRUMENTATION & MEASUREMENT TECHNOLOGY CONFERENCE, VOLS 1-3, 2009, : 1028 - +
  • [38] Multi-bit delta-sigma modulator using a modified DWA algorithm
    Kuo, CH
    Hsueh, TC
    Liu, SI
    ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, 2002, 33 (03) : 289 - 300
  • [39] A low-power 2nd-order CT delta-sigma modulator with a single operational amplifier
    Dejan Radjen
    Martin Anderson
    Lars Sundström
    Pietro Andreani
    Analog Integrated Circuits and Signal Processing, 2014, 80 : 387 - 397
  • [40] Multi-bit Delta-Sigma Modulator Using a Modified DWA Algorithm
    Chien-Hung Kuo
    Tzu-Chien Hsueh
    Shen-Iuan Liu
    Analog Integrated Circuits and Signal Processing, 2002, 33 : 289 - 300
12345