An 88Db Snr 30M Pixel Pitch Infrared Image Sensor With A 2Step 16 Bit Ad Conversion

• doi: 10.1109/VLSIC.2012.6243823
• title: An 88dB SNR, 30µm pixel pitch Infra-Red image sensor with a 2-step 16 bit A/D conversion
• publisher: IEEE
• isbn: 978-1-4673-0845-8
• issn: 2158-5636
• partnum: 12CH38956
• rank: 1450
• access_type: LOCKED
• content_type: Conferences
• abstract: A new readout IC (ROIC) with a 2 step A/D conversion for cooled infrared image sensors is presented in this paper. The sensor operates at a 50Hz frame rate in an Integrate-While-Read snapshot mode. The 16 bit ADC resolution preserves the excellent detector SNR at full well (~3Ge-). The ROIC, featuring a 320×256 array with 30μm pixel pitch, has been designed in a standard 0.18μm CMOS technology. The IC has been hybridized (indium bump bonding) to a LWIR (Long Wave Infra Red) detector fabricated using our in-house HgCdTe process. The first measurement results of the detector assembly validate both the 2-step ADC concept and its circuit implementation. This work sets a new state-of-the-art SNR of 88dB.
• article_number: 6243823
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6243823
• html_url: https://ieeexplore.ieee.org/document/6243823/
• abstract_url: https://ieeexplore.ieee.org/document/6243823/
• publication_title: 2012 Symposium on VLSI Circuits (VLSIC)
• conference_location: Honolulu, HI, USA
• conference_dates: 13-15 June 2012
• publication_number: 6235082
• is_number: 6243757
• publication_year: 2012
• publication_date: 13-15 June 2012
• start_page: 128
• end_page: 129
• citing_paper_count: 7
• citing_patent_count: 0
• download_count: 1029
• insert_date: 20120719
• index_terms:
  • ieee_terms:
    • Signal to noise ratio
    • Detectors
    • Radiation detectors
    • CMOS integrated circuits
    • Dynamic range
    • Random access memory
  • dynamic_index_terms:
    • Infrared Imaging
    • Infrared Camera
    • Thermal Imaging
    • Thermal Camera
    • Pixel Pitch
    • Standard CMOS
    • High Dynamic Range
    • Dynamic Capabilities
    • Digital Output
• isbn_formats:
  • format: Online ISBN, value: 978-1-4673-0845-8, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4673-0848-9, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4673-0849-6, isbnType: New-2005
• authors:
  • Author Name: Arnaud Peizerat
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/37397198600
    ID: 37397198600
    Order: 1
    Author Affiliations:
    • CEA-LETI, Grenoble, France
  • Author Name: Jean-Pierre Rostaing
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/37268562100
    ID: 37268562100
    Order: 2
    Author Affiliations:
    • CEA-LETI, Grenoble, France
  • Author Name: Noureddine Zitouni
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/38466629000
    ID: 38466629000
    Order: 3
    Author Affiliations:
    • CEA-LETI, Grenoble, France
  • Author Name: Nicolas Baier
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/38466554400
    ID: 38466554400
    Order: 4
    Author Affiliations:
    • CEA-LETI, Grenoble, France
  • Author Name: Fabrice Guellec
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/37888104300
    ID: 37888104300
    Order: 5
    Author Affiliations:
    • CEA-LETI, Grenoble, France
  • Author Name: Rémi Jalby
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/38466600400
    ID: 38466600400
    Order: 6
    Author Affiliations:
    • CEA-LETI, Grenoble, France
  • Author Name: Michael Tchagaspanian
    Affiliation: CEA-LETI, Grenoble, France
    Author URL: https://ieeexplore.ieee.org/author/38075507000
    ID: 38075507000
    Order: 7
    Author Affiliations:
    • CEA-LETI, Grenoble, France

Image Sensor

• sensor_type: CMOS
• resolution: 320x256
• dynamic_range: 88dB
• pixel_size: 30µm
• dark_current: not specified

Optical Data

• focal_length: not specified
• aperture: not specified
• field_of_view: not specified
• distortion: not specified

Performance Metrics

• frame_rate: 50Hz
• signal_to_noise_ratio: 88dB
• power_consumption: <72mW
• noise: 1.5 DN in ITR mode, 20% larger in IWR mode

Applications & Benefits

• cell_imaging: not specified
• benefits: High dynamic range capability with breakthrough thermal sensitivity.

Supporting Organizations

• supported_by: CEA-LETI, Minatec Campus, Grenoble, France

Manuscript Details

• publication_date: 13-15 June 2012

Relevancy Score

• score: 10
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • sensitivity
  • shutter_speed
  • cell_imaging

Processed JSON Filename

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