Boosted Cmos Aps Pixel Readout For Ultra Lowvoltage And Lowpower Operation

• doi: 10.1109/TCSII.2013.2258249
• title: Boosted CMOS APS Pixel Readout for Ultra Low-Voltage and Low-Power Operation
• publisher: IEEE
• isbn:
• issn: 1558-3791
• rank: 1738
• access_type: LOCKED
• content_type: Journals
• abstract: A new pixel readout technique is proposed for three-transistor (3T) CMOS active pixel sensor (APS) pixels. It utilizes the supply-boosting technique (SBT) in order to reduce power consumption and allow ultra low-voltage operation. The pixel supply voltage as well as the pixel reset and select signals were boosted to achieve wider and extended linear operating ranges. A CMOS image sensor containing a 54 $\times$ 50 array of 3T CMOS APS pixels was fabricated in a standard 2P3M 5-V 0.5- $\mu\hbox{m}$ CMOS process to confirm the effectiveness of each boosting operation. Theory, simulation, and measurement results are presented. The boosting pixel supply voltage during pixel readout provides additional 31% dynamic range improvement on top of the seven times $(7\times)$ expansion attained by boosting the pixel reset signal. It was shown that the proposed boosted readout does not increase the number of transistors in the 3T CMOS APS pixels nor degrade the image quality.
• article_number: 6508839
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=6508839
• html_url: https://ieeexplore.ieee.org/document/6508839/
• abstract_url: https://ieeexplore.ieee.org/document/6508839/
• publication_title: IEEE Transactions on Circuits and Systems II: Express Briefs
• conference_location:
• conference_dates:
• publication_number: 8920
• is_number: 6530621
• publication_year: 2013
• publication_date: June 2013
• start_page: 341
• end_page: 345
• citing_paper_count: 8
• citing_patent_count: 0
• download_count: 945
• insert_date: 20130425
• index_terms:
  • ieee_terms:
    • Image quality
    • Low voltage
    • Active pixel sensors
    • Dynamic range
    • CMOS image sensors
    • Boosting
    • CMOS process
    • Transistors
    • Standards
    • Sensor arrays
  • author_terms:
    • CMOS active pixel sensor (APS)
    • image sensors
    • low-power
    • low-voltage
    • supply boosting
  • dynamic_index_terms:
    • Low-voltage Operation
    • Low-power Operation
    • Ultra-low Voltage
    • Active Pixel Sensor
    • Pixel Readout
    • Ultralow-voltage Operation
    • Simulation Results
    • Image Quality
    • Dynamic Range
    • Power Consumption
    • Signatures Of Selection
    • Image Sensor
    • Camera Sensor
    • Supply Voltage
    • CMOS Process
    • Pixel Array
    • Voltage Drop
    • Potential Drop
    • IR Drop
    • Threshold Voltage
    • Voltage Levels
    • Output Range
    • Yield Range
    • Readout Circuit
    • Standard CMOS
    • Input Range
    • Low Supply Voltage
    • Charge Pump
• authors:
  • Author Name: Suat U. Ay
    Affiliation: Department of Electrical and Computer Engineering, University of Idaho, Moscow, ID, USA
    Author URL: https://ieeexplore.ieee.org/author/37326790500
    ID: 37326790500
    Order: 1
    Author Affiliations:
    • Department of Electrical and Computer Engineering, University of Idaho, Moscow, ID, USA

Image Sensor

• sensor_type: CMOS Active Pixel Sensor (APS)
• resolution: 54x50 pixels
• dynamic_range: 9.5× improvement over standard readout
• 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

• power_consumption: Low-power operation confirmed, specifics not provided
• noise: Fixed Pattern Noise (FPN) reduced to 0.01% for voltage-mode readout

Applications & Benefits

• cell_imaging: Suitable for low-voltage applications like implantable biomedical devices and toy cameras; mobile devices and consumer electronics also targeted.
• benefits: Allows ultra low-voltage operation and reduced power consumption while extending input/output ranges.

Supporting Organizations

• supported_by: Micron Technology Foundation

Manuscript Details

• publication_date: June 2013

Relevancy Score

• score: 10
• missing_fields:
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • frame_rate
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • power_consumption
  • noise

Processed JSON Filename

request_2269310b-5566-48dd-a058-b2777994f179-boosted_cmos_aps_pixel_readout_for_ultra_lowvoltage_and_lowpower_operation.json