Journal of Infrared and Millimeter Waves, Volume. 43, Issue 2, 268(2024)

Low noise ROIC integrated with correlated double sampling with adjustable intervals for hyperspectral applications

Shuang WU1,2, Qing-Hua LIANG1, Hong-Lei CHEN1, and Rui-Jun DING1、*
Author Affiliations
  • 1Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Sciences,Shanghai 200083,China
  • 2University of Chinese Academy of Sciences,Beijing 100049,China
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    Figures & Tables(19)
    Acquisition of hyperspectral data: (a) hyperspectral data cube; (b) schematic diagram of a hyperspectral imaging system
    Correlated double sampling: (a) structure of CDS; (b) timing diagram of CDS,equivalent circuits: (c) reset of C0 step at t2; (d) reset of Csh and clamp step at t3; (e) sample-hold step at t4
    1/f Noise Spectral Density reshaped by CDS with different Td : (a) the spectral density of 1/f noise; (b) comparison of two CDS transfer functions with different Td; (c) comparison of two output noise spectral density functions with different Td
    Structure of combined CTIA-CDS ROIC: (a) the schematic structure; (b) equivalent model structure
    Combined CTIA-AICDS ROIC
    Timing diagram and node voltage of the proposed ROIC pixel
    The proposed timing generator of AICDS
    Integration and dynamic simulation
    Time sequence transient simulation
    The histogram of V2 under different settings of Tr
    ENC and SNR vary with Tr
    Layout and floorplan of the fabricated chip
    Schematic diagram of experimental platform
    Structure of CDS test: (a) the schematic structure;(b) timing diagram
    The output voltage acquisition: (a) the grayscale map over 640×512 array when CDS-off;(b) the grayscale map over 640×512 array when CDS-on,the output noise acquisition;(c) the histogram of 16×16 segment when CDS-off;(d) the histogram of 16×16 segment when CDS-on
    The output noise voltage in condition of (a) CDS off and (b) varying ratio γ when CDS turns on
    • Table 1. Comparison of specifications of CRISM, PRISMA, Gaofen-5(GF-5), MAJIS and HyspIRI

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      Table 1. Comparison of specifications of CRISM, PRISMA, Gaofen-5(GF-5), MAJIS and HyspIRI

      InstrumentCRISMPRISMAGF-5 AHSIMAJISHyspIRI
      Platform nameMROPRISMASAST3000JUICEHyspIRI
      countryUSAItalyChinaEuropeUSA
      Launched year20052018201820222023
      Spectral bands-249330-220
      Spectral range/µm0.36~3.90.4~2.50.4~2.50.4~5.70.38~2.5
      Spectral/nm6.55105~103~710
      Format640×4801 000×256512×5121 024×1 024-
      detectorsHgCdTeHgCdTeHgCdTe--
      Pixel pitch/µm27303015-
      ROIC input stageCTIACTIACTIACTIA-
      Readout noise/e-<100<150/<35060/275<170-
    • Table 2. CDS reset time regulation

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      Table 2. CDS reset time regulation

      TR3:0Clock cycles
      00000
      000118
      001036
      1111270
    • Table 3. The performance of CTIA amplifier

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      Table 3. The performance of CTIA amplifier

      Amplifier parameter
      gain59.6 dB
      Phase margin/°60
      Bandwidth/Hz8M
      Swing/V2.23(1-3.23)
      pixel pitch/μm15
      DC current/nA68~100
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    Shuang WU, Qing-Hua LIANG, Hong-Lei CHEN, Rui-Jun DING. Low noise ROIC integrated with correlated double sampling with adjustable intervals for hyperspectral applications[J]. Journal of Infrared and Millimeter Waves, 2024, 43(2): 268

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    Paper Information

    Category: Research Articles

    Received: Aug. 23, 2023

    Accepted: --

    Published Online: Apr. 29, 2024

    The Author Email: Rui-Jun DING (dingrj@mail.sitp.ac.cn)

    DOI:10.11972/j.issn.1001-9014.2024.02.017

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