Twostep Singleslope Adc With Threestage Bandwidthlimited Comparator For Cmos Image Sensors

• doi: 10.1109/ICICM56102.2022.10011249
• title: Two-Step Single-Slope ADC with Three-Stage Bandwidth-Limited Comparator for CMOS Image Sensors
• publisher: IEEE
• isbn: 978-1-6654-6058-3
• issn:
• rank: 3910
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper proposes a low-power column parallel two-step single-slope Analog-to-Digital Converter (SS ADC) with three-stage Bandwidth-Limited preamplifier. The slight expanding ramp generator is used to reduce the accuracy error caused by the limited bandwidth. A prototype sensor was designed using UMC 110 nm CMOS image sensors process. The simulation results show that the proposed three-stage Bandwidth-Limited preamplifier consumes $73\mu\mathrm{W}$ power per column, saved 70% power consumption. The DNL is −0.2LSB/ +0.4LSB, INL is −0.2LSB/ +0.3LSB at 20MHz with 3.3V/1.2V supply voltage.
• article_number: 10011249
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10011249
• html_url: https://ieeexplore.ieee.org/document/10011249/
• abstract_url: https://ieeexplore.ieee.org/document/10011249/
• publication_title: 2022 7th International Conference on Integrated Circuits and Microsystems (ICICM)
• conference_location: Xi'an, China
• conference_dates: 28-31 Oct. 2022
• publication_number: 10011216
• is_number: 10011228
• publication_year: 2022
• publication_date: 28-31 Oct. 2022
• start_page: 273
• end_page: 277
• citing_paper_count: 0
• citing_patent_count: 0
• download_count: 377
• insert_date: 20230116
• index_terms:
  • ieee_terms:
    • Micromechanical devices
    • Integrated circuits
    • Power demand
    • Simulation
    • Prototypes
    • Bandwidth
    • CMOS image sensors
  • author_terms:
    • low power comparator
    • two-step ADC
    • preamplifier
    • bandwidth-limited
  • dynamic_index_terms:
    • Power Consumption
    • Analog-to-digital Converter
    • Analog-to-digital
    • Digital-to-analog Converter
    • Least Significant Bit
    • Low Bit
    • Sensor Prototype
    • Output Function
    • Yield Function
    • Most Significant Bit
    • High Bit
    • Highest Bit
    • Clock Frequency
    • Turn Off
    • Dynamic Voltage
    • Offset Voltage
    • Average Power Consumption
    • Output Buffer
    • Sufficient Bandwidth
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-6654-6058-3, isbnType: New-2005
  • format: USB ISBN, value: 978-1-6654-6042-2, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-6654-6043-9, isbnType: New-2005
• authors:
  • Author Name: Nan Lv
    Affiliation: School of Automation, Xi’an University of Technology, Xi’an
    Author URL: https://ieeexplore.ieee.org/author/37089624001
    ID: 37089624001
    Order: 1
    Author Affiliations:
    • School of Automation, Xi’an University of Technology, Xi’an
  • Author Name: Nini Kang
    Affiliation: School of Automation, Xi’an University of Technology, Xi’an
    Author URL: https://ieeexplore.ieee.org/author/37089686940
    ID: 37089686940
    Order: 2
    Author Affiliations:
    • School of Automation, Xi’an University of Technology, Xi’an
  • Author Name: Ningmei Yu
    Affiliation: School of Automation, Xi’an University of Technology, Xi’an
    Author URL: https://ieeexplore.ieee.org/author/37588111700
    ID: 37588111700
    Order: 3
    Author Affiliations:
    • School of Automation, Xi’an University of Technology, Xi’an
  • Author Name: Hejiu Zhang
    Affiliation: School of Automation, Xi’an University of Technology, Xi’an
    Author URL: https://ieeexplore.ieee.org/author/37086112754
    ID: 37086112754
    Order: 4
    Author Affiliations:
    • School of Automation, Xi’an University of Technology, Xi’an
  • Author Name: Zhongjie Guo
    Affiliation: School of Automation, Xi’an University of Technology, Xi’an
    Author URL: https://ieeexplore.ieee.org/author/37086477116
    ID: 37086477116
    Order: 5
    Author Affiliations:
    • School of Automation, Xi’an University of Technology, Xi’an

Image Sensor

• sensor_type: CMOS
• resolution: 10-bit, 0-2V
• dynamic_range: Not directly stated
• pixel_size: Not directly stated
• dark_current: Not directly stated

Optical Data

• focal_length: Not directly stated
• aperture: Not directly stated
• field_of_view: Not directly stated
• distortion: Not directly stated

Performance Metrics

• frame_rate: 20 MHz clock frequency
• signal_to_noise_ratio: Not directly stated
• sensitivity: Not directly stated
• shutter_speed: Not directly stated
• power_consumption: 73µW per column
• noise: Dynamic Noise Level (DNL): -0.2LSB/+0.4LSB, Integral Nonlinearity (INL): -0.2LSB/+0.3LSB

Applications & Benefits

• cell_imaging: Utilized for various applications including medical imaging, unmanned driving, face recognition, industrial monitoring, and digital products.
• benefits: Low power consumption enabling use in portable products.

Supporting Organizations

• supported_by: National Natural Science Foundation of China (No. 62201450, 62171367) and Shaanxi Innovation Capability Support Project (2022TD-39)

Manuscript Details

• publication_date: 28-31 Oct. 2022

Relevancy Score

• score: 9
• missing_fields:
  • pixel_size
  • dynamic_range
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed

Processed JSON Filename

request_01cb22c2-a810-46f4-9a78-6c8bd64e0926-twostep_singleslope_adc_with_threestage_bandwidthlimited_comparator_for_cmos_image_sensors.json