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Laser & Optoelectronics Progress, Volume. 60, Issue 12, 1228005(2023)

Correlated Multiple Sampling Technique for Low-Light CMOS Image Sensors

Shaomeng Li, Kaiming Nie*, and Jiangtao Xu
Author Affiliations
  • School of Microelectronics, Tianjin University, Tianjin 300072, China
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    AbstractGet PDF(in Chinese)
    Figures&Tables (12)
    Equations (5)
    References (11)
    Cited By (6)
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    Paper Information
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    Figures & Tables(12)
    Architecture of traditional SS ADC

    Fig. 1. Architecture of traditional SS ADC

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    Timing diagrams of traditional CMS technique

    Fig. 2. Timing diagrams of traditional CMS technique

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    Diagram of the SS ADC with voltage adaptive CMS technique

    Fig. 3. Diagram of the SS ADC with voltage adaptive CMS technique

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    Principles of voltage adaptive CMS technology. (a) Vpixel<Vref; (b) Vpixel>Vref

    Fig. 4. Principles of voltage adaptive CMS technology. (a) Vpixel<Vref; (b) Vpixel>Vref

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    Architecture of comparator

    Fig. 5. Architecture of comparator

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    Architecture of counter

    Fig. 6. Architecture of counter

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    Architecture of ramp generator

    Fig. 7. Architecture of ramp generator

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    Relationship between input and code value

    Fig. 8. Relationship between input and code value

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    DNL/INL performance of low noise SS ADC

    Fig. 9. DNL/INL performance of low noise SS ADC

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    Relationship between SNR and input value

    Fig. 10. Relationship between SNR and input value

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    • Table 1. Parameters of the two-stage comparator

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      Table 1. Parameters of the two-stage comparator

      ItemCurrent /µA3 dB bandwidth /kHzGain /dB
      First stage6.061843.5
      Second stage2.856444.03

    • Table 2. Comparison with prior techniques

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      Table 2. Comparison with prior techniques

      ParameterMethod in Ref.［1］Method in Ref.［2］Traditional method*This work*
      Process node /nm180110110
      Power supply（P）/V3.3/1.83.3/1.53.3/1.5
      Resolution /bit10/14111111
      Sampling times /1064544/2
      Random noise（Inoise）/µV127738082
      1 Horizon time（T）/µs283623
      Power /µW4543
      FOMa1 /（fJ·step-1）791483
      FOMb2 /（nVrms·Hz-1）2.022.881.93
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    Shaomeng Li, Kaiming Nie, Jiangtao Xu. Correlated Multiple Sampling Technique for Low-Light CMOS Image Sensors[J]. Laser & Optoelectronics Progress, 2023, 60(12): 1228005

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    Paper Information

    Category: Remote Sensing and Sensors

    Received: May. 5, 2022

    Accepted: Jun. 22, 2022

    Published Online: Jun. 5, 2023

    The Author Email: Kaiming Nie (nkaiming@tju.edu.cn)

    DOI:10.3788/LOP221508

    Topics

    laser devices and laser physics
    Lasers and Laser Optics
    Laser physics
    laser manufacturing
    Instrumentation, Measurement and Metrology