Velocity Saturation Currentmode Cmos Imaging Sensor

• doi: 10.1109/ISCAS.2013.6572418
• title: Velocity saturation current-mode CMOS imaging sensor
• publisher: IEEE
• isbn: 978-1-4673-5761-6
• issn: 2158-1525
• rank: 3956
• access_type: LOCKED
• content_type: Conferences
• abstract: A current-mode CMOS imaging sensor is presented in this paper. The read-out transistor in the photo pixel operates in velocity saturation regime and allows for high linearity between integrated photo charges and output drain current. The column parallel read-out circuitry implements a novel current conveyor with a feedback mechanism which improves matching of the output currents across the imaging array. Correlated double sampling (CDS) is performed on-chip in order to improve noise characteristics of the imager. A prototype of the proposed imaging sensor was fabricated in 0.18μm triple well CMOS process. The sensor operation and measurements are presented.
• article_number: 6572418
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6572418
• html_url: https://ieeexplore.ieee.org/document/6572418/
• abstract_url: https://ieeexplore.ieee.org/document/6572418/
• publication_title: 2013 IEEE International Symposium on Circuits and Systems (ISCAS)
• conference_location: Beijing, China
• conference_dates: 19-23 May 2013
• publication_number: 6560459
• is_number: 6571764
• publication_year: 2013
• publication_date: 19-23 May 2013
• start_page: 2630
• end_page: 2633
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 221
• insert_date: 20130801
• index_terms:
  • ieee_terms:
    • Transistors
    • Imaging
    • Arrays
    • Linearity
    • Electric potential
    • Noise
    • CMOS integrated circuits
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Saturation Velocity
    • Feedback Mechanism
    • Output Current
    • Array Images
    • Array Tomography
    • Drain Current
    • High Linearity
    • Voltage-gated
    • Gate Voltage
    • Operation Mode
    • Photodiode
    • Linear Mode
    • Linear Transition
    • Current Image
    • Current Sensor
    • Transconductance
    • Conductive Transfer
    • Drain Voltage
    • Uniform Intensity
    • Uniform Volume
    • Pixel Array
    • Lateral Field
    • Spatial Noise
    • Transistor Performance
    • Transistor Operation
    • Pixel Column
    • Switching Transistors
    • Function Of Gate Voltage
    • Temporal Noise
    • Pixel Pitch
    • Drain-source Current
    • Source-drain Current
    • Conversion Gain
    • Function Of Voltage
    • Impedance
    • Resistivity
    • Transistor Channel
• isbn_formats:
  • format: CD, value: 978-1-4673-5761-6, isbnType: New-2005
  • format: Print ISBN, value: 978-1-4673-5760-9, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-4673-5762-3, isbnType: New-2005
• authors:
  • Author Name: Raphael Njuguna
    Affiliation: Department of Computer Science and Engineering, Washington University, St. Louis, St. Louis, USA
    Author URL: https://ieeexplore.ieee.org/author/37542654300
    ID: 37542654300
    Order: 1
    Author Affiliations:
    • Department of Computer Science and Engineering, Washington University, St. Louis, St. Louis, USA
  • Author Name: Viktor Gruev
    Affiliation: Department of Computer Science and Engineering, Washington University, St. Louis, St. Louis, USA
    Author URL: https://ieeexplore.ieee.org/author/37269503900
    ID: 37269503900
    Order: 2
    Author Affiliations:
    • Department of Computer Science and Engineering, Washington University, St. Louis, St. Louis, USA

Image Sensor

• sensor_type: CMOS
• resolution: 54x60 pixels
• dynamic_range: 36.40 dB
• pixel_size: 25 μm
• 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: 100 fps
• power_consumption: 270 mW
• noise: 0.50% of saturation level

Applications & Benefits

• cell_imaging: Suitable for applications such as fluorescence imaging.
• benefits: Improved linearity, reduced noise, higher spatial and temporal performance.

Supporting Organizations

• supported_by: National Science Foundation (NSF) grant number 1130897 and Air Force Office of Scientific Research (AFOSR) grant number FA9550-10-1-0121.

Manuscript Details

• publication_date: 19-23 May 2013

Relevancy Score

• score: 10
• missing_fields:
  • quantum efficiency
  • on-chip colour filters
  • microlenses
  • global or rolling shutters
  • backside illumination

Processed JSON Filename

request_0524da8f-d227-42a7-bfb8-bb4d555caecf-velocity_saturation_currentmode_cmos_imaging_sensor.json