Lowpower And Highspeed Currentmode Cmos Imager With 1T Biasing Scheme

• doi: 10.1109/ICSENS.2010.5689949
• title: Low-power and high-speed current-mode CMOS imager with 1T biasing scheme
• publisher: IEEE
• isbn: 978-1-4244-8168-2
• issn: 1930-0395
• partnum: 10CH38272
• rank: 2952
• access_type: LOCKED
• content_type: Conferences
• abstract: A low-power and high-speed current-mode CMOS image sensor is proposed in this paper. Only one column-level transistor is used in the read-out circuit as a current conveyor to bias the in-pixel transistor operating in triode region. As a result, the current-mode read-out circuit is significantly simplified by the proposed structure, while saving the power by more than half. The proposed scheme enables less than 20ns output settling time due to very low impedance at the internal high capacitance bus, leading to fast operating speed. In addition, a relevant CDS technique is also proposed in order to reduce the first order coefficient variation. A test structure is fabricated using a CMOS 0.35μm process.
• article_number: 5689949
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5689949
• html_url: https://ieeexplore.ieee.org/document/5689949/
• abstract_url: https://ieeexplore.ieee.org/document/5689949/
• publication_title: SENSORS, 2010 IEEE
• conference_location: Waikoloa, HI, USA
• conference_dates: 1-4 Nov. 2010
• publication_number: 5678851
• is_number: 5689839
• publication_year: 2010
• publication_date: 1-4 Nov. 2010
• start_page: 1653
• end_page: 1656
• citing_paper_count: 1
• citing_patent_count: 0
• download_count: 231
• insert_date: 20110120
• index_terms:
  • ieee_terms:
    • Transistors
    • CMOS integrated circuits
    • Noise
    • Mirrors
    • Power demand
    • CMOS technology
    • Linearity
  • dynamic_index_terms:
    • High-speed CMOS
    • Image Sensor
    • Camera Sensor
    • Operation Speed
    • Readout Circuit
    • Power Consumption
    • Low Voltage
    • Random Noise
    • Channel Noise
    • Photocurrent
    • Output Current
    • Channel Width
    • Supply Voltage
    • Previous Strategies
    • Previous Schemes
    • CMOS Technology
    • Saturation Region
    • Linear Scheme
    • Differential Amplifier
    • Transistor Size
    • Transistor Count
    • Readout Time
    • Differential Pair
    • Current Mirror
    • Single Transistor
• isbn_formats:
  • format: Online ISBN, value: 978-1-4244-8168-2, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4244-8170-5, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4244-8169-9, isbnType: New-2005
• authors:
  • Author Name: Fang Tang
    Affiliation: S2IS Laboratory, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China
    Author URL: https://ieeexplore.ieee.org/author/37393880400
    ID: 37393880400
    Order: 1
    Author Affiliations:
    • S2IS Laboratory, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China
  • Author Name: Amine Bermak
    Affiliation: S2IS Laboratory, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China
    Author URL: https://ieeexplore.ieee.org/author/37275353200
    ID: 37275353200
    Order: 2
    Author Affiliations:
    • S2IS Laboratory, Department of Electronic and Computer Engineering, Hong Kong University of Science and Technology, Hong Kong, China

Image Sensor

• sensor_type: CMOS
• resolution: not specified
• dynamic_range: not specified
• pixel_size: not specified
• dark_current: not specified

Optical Data

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

Performance Metrics

• signal_to_noise_ratio: 67 dB (with ∣Vgs1∣=1.5V), 60 dB (without ADC noise)
• power_consumption: 10 µA
• noise: 1.07 nA

Applications & Benefits

• cell_imaging: The sensor is applicable in various image capture scenarios such as smartphones and potentially medical devices.
• benefits: The proposed imager offers high speed (20 ns settling time), low power consumption, and reasonable linearity.

Supporting Organizations

• supported_by: Hong Kong University of Science and Technology

Manuscript Details

• publication_date: 1-4 Nov. 2010

Relevancy Score

• score: 9
• missing_fields:
  • fill factor
  • quantum efficiency
  • specific pixel size
  • frame rate
  • focal length
  • aperture
  • field of view
  • distortion
  • sensitivity
  • shutter speed
  • noise details

Processed JSON Filename

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