A Compact 14Bit 110 Kss Twostage Incremental Adc For Cmos Image Sensors

• doi: 10.1109/MWSCAS.2017.8053139
• title: A compact 14-bit 110 KS/s two-stage incremental ΣΔ ADC for CMOS image sensors
• publisher: IEEE
• isbn: 978-1-5090-6390-1
• issn: 1558-3899
• rank: 1022
• access_type: LOCKED
• content_type: Conferences
• abstract: The requirements for data conversion in CMOS Image Sensors are increasing due to number and size of pixels and can not be met anymore by classic ramp converters. To address this issue, this paper presents a compact 14-bit two-stage Incremental-ΣΔ column-parallel ADC for use in CMOS Image Sensors. The ADC as well as a test array for a pixel matrix has been fabricated in a 110nm optical CMOS process with a 3.3V supply. The first ADC stage is 5 bit Incremental-ΣΔ, while the second stage is realized by reusing all circuit elements in a cyclic ADC configuration. This way the ADC column occupies an area of only 0.0029 mm2 and is layout with a fine pitch of 9.6 μm. At a speed of 110 KS/s it consumes 123 μW and achieves a DNL and INL of +0.65/-0.83 LSB and +0.9/-0.81 LSB respectively.
• article_number: 8053139
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8053139
• html_url: https://ieeexplore.ieee.org/document/8053139/
• abstract_url: https://ieeexplore.ieee.org/document/8053139/
• publication_title: 2017 IEEE 60th International Midwest Symposium on Circuits and Systems (MWSCAS)
• conference_location: Boston, MA, USA
• conference_dates: 6-9 Aug. 2017
• publication_number: 8039346
• is_number: 8052834
• publication_year: 2017
• publication_date: 6-9 Aug. 2017
• start_page: 1180
• end_page: 1183
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 457
• insert_date: 20171002
• index_terms:
  • ieee_terms:
    • Capacitors
    • Switches
    • Clocks
    • Image resolution
    • CMOS image sensors
    • Modulation
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Circuit Elements
    • Electrical Elements
    • Pixel Matrix
    • Pixel Matrices
    • Power Consumption
    • Stages Of Cycle
    • Input Signal
    • Analog-to-digital Converter
    • Analog-to-digital
    • Digital-to-analog Converter
    • Capacity Of Samples
    • Extent Of Occurrence
    • Area Of Occupancy
    • Integration Of Inputs
    • Clock Cycles
    • Decision Level
    • Capacitor C1
    • Nyquist Rate
    • Nyquist Sampling Rate
    • Output Bits
    • Delta-sigma
    • Sigma-delta
    • Integrator Output
    • Voltage Feedback
    • Capacitors C2
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-5090-6390-1, isbnType: New-2005
  • format: USB ISBN, value: 978-1-5090-6388-8, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-5090-6389-5, isbnType: New-2005
• authors:
  • Author Name: Francesco Giorgio
    Affiliation: Department of Engineering Science, University of Oxford
    Author URL: https://ieeexplore.ieee.org/author/37089406445
    ID: 37089406445
    Order: 1
    Author Affiliations:
    • Department of Engineering Science, University of Oxford
  • Author Name: Bhaskar Choubey
    Affiliation: Department of Engineering Science, University of Oxford
    Author URL: https://ieeexplore.ieee.org/author/37274571900
    ID: 37274571900
    Order: 2
    Author Affiliations:
    • Department of Engineering Science, University of Oxford

Image Sensor

• sensor_type: CMOS
• resolution: 400x400 pixels
• dynamic_range:
• pixel_size: 9.6 µm
• dark_current:

Optical Data

• focal_length:
• aperture:
• field_of_view:
• distortion:

Performance Metrics

• frame_rate: 30 fps
• signal_to_noise_ratio:
• sensitivity:
• shutter_speed:
• power_consumption: 123 µW
• noise:

Applications & Benefits

• cell_imaging: This paper discusses the use of a 14-bit two-stage Incremental ΣΔ ADC specifically designed for CMOS Image Sensors, enabling efficient data conversion in sensitive imaging applications.
• benefits: Achieves high resolution (14-bits), low power consumption (123 µW), compact area (0.0029 mm²), and allows faster image capture (30 fps at full resolution).

Supporting Organizations

• supported_by: European Commission, EDISON-GA project

Manuscript Details

• publication_date: 6-9 Aug. 2017

Relevancy Score

• score: 9
• missing_fields:
  • fill factor
  • quantum efficiency
  • noise sources
  • readout speed
  • microlenses
  • on-chip colour filters
  • global or rolling shutters
  • backside illumination

Processed JSON Filename

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