Study of Quantizer-Bandwidth in Continuous-Time Delta-Sigma Modulators

被引：0
|
作者：
Han, Changsok [1 ]
Kim, Taewook [1 ]
Xu, Xiaodong [1 ]
Maghari, Nima [1 ]
机构：
[1] Univ Florida, Dept Elect & Comp Engn, Gainesville, FL 32611 USA
来源：
2019 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS) | 2019年
关键词：
EXCESS LOOP DELAY;
D O I：
暂无
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：
The effect of finite bandwidth of quantizers in continuous-time (CT) delta-sigma modulators (DSMs) is studied. It is shown that the finite quantizer-bandwidth in CTDSMs degrades the performance much more severely than it does in their discrete-time counterparts. It is demonstrated that CTDSMs with excess loop delay (ELD) compensation schemes require an even higher quantizer-bandwidth compared to ELD-free CTDSMs. Furthermore, it is shown that the required quantizer-bandwidth increases as the order and the out-of-band gain increases. Detailed mathematical analyses and simulation results are provided to show the effect of the finite quantizer-bandwidth.
引用
收藏
页数：5
相关论文
共 50 条
  • [31] A Self Calibration Technique for Tunable Continuous-Time Bandpass Delta-Sigma Modulators
    Afifi, Mohamed
    Shahein, Ahmed
    Maurer, Michael
    Keller, Matthias
    Manoli, Yiannos
    2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012), 2012,
  • [32] Analysis of single-event effects in continuous-time Delta-Sigma modulators
    Leuciuc, A
    Zhao, B
    Tian, Y
    Sun, JH
    IEEE TRANSACTIONS ON NUCLEAR SCIENCE, 2004, 51 (06) : 3519 - 3524
  • [33] Automatic Tuning of Time Constants in Single Bit Continuous-Time Delta-Sigma Modulators
    Saxena, Saurabh
    Sankar, Prabu
    Pavan, Shanthi
    ISCAS: 2009 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-5, 2009, : 2257 - 2260
  • [34] Hierarchical statistical analysis of performance variation for continuous-time delta-sigma modulators
    Tang, Hua
    VLSI-SOC 2007: PROCEEDINGS OF THE 2007 IFIP WG 10.5 INTERNATIONAL CONFERENCE ON VERY LARGE SCALE INTEGRATION, 2007, : 37 - 41
  • [35] Influence of Excess Loop Delay on the STF of Continuous-Time Delta-Sigma Modulators
    Pietzko, Michael
    Wagner, Johannes
    Abdelaal, Ahmed
    Kauffman, John G.
    Ortmanns, Maurits
    2021 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2021,
  • [36] Approaches to the Implementation of Noise-Coupling in Continuous-Time Delta-Sigma Modulators
    Ding, Chongjun
    Manoli, Yiannos
    Keller, Matthias
    2013 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2013, : 1047 - 1050
  • [37] Fundamental limitations of continuous-time delta-sigma modulators due to clock jitter
    Reddy, Karthikeyan
    Pavan, Shanthi
    2006 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, PROCEEDINGS, 2006, : 2021 - +
  • [38] Influence of finite integrator gain bandwidth on continuous-time sigma delta modulators
    Ortmanns, M
    Gerfers, F
    Manoli, K
    PROCEEDINGS OF THE 2003 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOL I: ANALOG CIRCUITS AND SIGNAL PROCESSING, 2003, : 925 - 928
  • [39] A High Speed Tracking Quantizer for Continuous-Time Multi-Bit Sigma Delta Modulators
    Leow, Yoon Hwee
    Siek, Liter
    PROCEEDINGS OF THE 2010 IEEE ASIA PACIFIC CONFERENCE ON CIRCUIT AND SYSTEM (APCCAS), 2010, : 776 - 779
  • [40] An Asynchronous Sub-Two-Step Quantizer for Continuous-Time Sigma-Delta Modulators
    Tan, Xiao Liang
    Chan, P. K.
    Dasgupta, U.
    2014 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS), 2014, : 710 - 713
12345