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
  • [11] Automatic tuning of time constants in continuous-time delta-sigma modulators
    Pavan, Shanthi
    Krishnapura, Nagendra
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2007, 54 (04) : 308 - 312
  • [12] Approaches to Digital Compensation of Excess Loop Delay in Continuous-Time Delta-Sigma Modulators Using a Scaled Quantizer
    Ding, Chongjun
    Zou, Liang
    Keller, Matthias
    Manoli, Yiannos
    2012 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS (ISCAS 2012), 2012,
  • [13] A Continuous-Time Delta-Sigma Modulator with Self-ELD Compensated Quantizer
    Han, Changsok
    Kim, Taewook
    Maghari, Nima
    2018 IEEE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC), 2018,
  • [14] Advanced Modeling Technique for Bandpass Continuous-Time Delta-Sigma Modulators
    Honarparvar, Mohammad
    Landry, Rene Jr.
    Nabki, Frederic
    Sawan, Mohamad
    2014 IEEE 12TH INTERNATIONAL NEW CIRCUITS AND SYSTEMS CONFERENCE (NEWCAS), 2014, : 341 - 344
  • [15] Analysis of integrator nonlinearity in a class of continuous-time delta-sigma modulators
    Sankar, Prabu
    Pavan, Shanthi
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2007, 54 (12) : 1125 - 1129
  • [16] Advances in High-Speed Continuous-Time Delta-Sigma Modulators
    Caldwell, Trevor
    Alldred, David
    Schreier, Richard
    Shibata, Hajime
    Dong, Yunzhi
    2014 IEEE PROCEEDINGS OF THE CUSTOM INTEGRATED CIRCUITS CONFERENCE (CICC), 2014,
  • [17] Wideband Continuous-Time MASH Delta-Sigma Modulators: A Tutorial Review
    Qi, Liang
    Liu, Yuekai
    Sin, Sai-Weng
    Xing, Xinpeng
    Wang, Guoxing
    Ortmanns, Maurits
    Martins, Rui P.
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS II-EXPRESS BRIEFS, 2022, 69 (06) : 2623 - 2628
  • [18] Continuous-Time Delta-Sigma Modulators Based on Passive RC Integrators
    de Melo, Joao L. A.
    Paulino, Nuno
    Goes, Joao
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2018, 65 (11) : 3662 - 3674
  • [19] Improved Continuous-Time Delta-Sigma Modulators With Embedded Active Filtering
    Manivannan, Saravana
    Pavan, Shanthi
    IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS I-REGULAR PAPERS, 2020, 67 (11) : 3778 - 3789
  • [20] Estimating circuit nonidealities of continuous-time multibit delta-sigma modulators
    Buhmann, Alexander
    Keller, Matthias
    Ortmanns, Maurits
    Manoli, Yiannos
    2007 IEEE INTERNATIONAL SYMPOSIUM ON CIRCUITS AND SYSTEMS, VOLS 1-11, 2007, : 2264 - 2267
12345