A Low Power Dynamic Comparator With Floating Inverter Amplifier For Columnparallel Adc

• doi: 10.1109/ICICM56102.2022.10011258
• title: A Low Power Dynamic Comparator with Floating Inverter Amplifier for Column-Parallel ADC
• publisher: IEEE
• isbn: 978-1-6654-6058-3
• issn:
• rank: 778
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper presents a low power dynamic comparator for column-parallel Analog-to-Digital Converter (ADC) in CMOS image sensors (CIS). The pre-amplifier in the comparator is based on a floating inverter amplifier, which consists of an inverter-based input pair powered by a floating capacitor, achieves low power consumption. In addition, the preamplifier gain and dynamic power consumption of the comparator is insensitive to the input common-mode voltage. This circuit is implemented in TSMC 40nm CMOS process with a power supply of 0.9V. The simulation results show that the comparator achieves an accuracy of $500\mu \mathrm{V}$ and a power consumption of $2\mu \mathrm{W}$ with 40MHz comparison speed. Furthermore, the layout area is only $5\mu \mathrm{m}\times 35\mu \mathrm{m}$, reducing comparator area while achieving low power consumption.
• article_number: 10011258
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10011258
• html_url: https://ieeexplore.ieee.org/document/10011258/
• abstract_url: https://ieeexplore.ieee.org/document/10011258/
• 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: 312
• end_page: 316
• citing_paper_count: 1
• citing_patent_count: 0
• download_count: 865
• insert_date: 20230116
• index_terms:
  • ieee_terms:
    • Micromechanical devices
    • Integrated circuits
    • Power demand
    • Simulation
    • Layout
    • Capacitors
    • Voltage
  • author_terms:
    • floating inverter amplifier
    • dynamic comparator
    • low power
    • column-parallel ADC
  • dynamic_index_terms:
    • Low Power
    • Analog-to-digital Converter
    • Analog-to-digital
    • Digital-to-analog Converter
    • Floating Inverter Amplifier
    • Floating-inverter Amplifier
    • Floating-inverter-amplifier
    • Simulation Results
    • Power Consumption
    • Image Sensor
    • Camera Sensor
    • Low Power Consumption
    • Input Pair
    • Amount Of Variance
    • Voltage Difference
    • Voltage Deviation
    • Output Node
    • Clock Frequency
    • Node Voltage
    • Offset Voltage
    • Differential Pair
    • Good Rejection
• 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: Hejiu Zhang
    Affiliation: Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
    Author URL: https://ieeexplore.ieee.org/author/37086112754
    ID: 37086112754
    Order: 1
    Author Affiliations:
    • Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
  • Author Name: Lu Yuan
    Affiliation: Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
    Author URL: https://ieeexplore.ieee.org/author/37089625808
    ID: 37089625808
    Order: 2
    Author Affiliations:
    • Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
  • Author Name: Ningmei Yu
    Affiliation: Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
    Author URL: https://ieeexplore.ieee.org/author/37588111700
    ID: 37588111700
    Order: 3
    Author Affiliations:
    • Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
  • Author Name: Nan Lv
    Affiliation: Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
    Author URL: https://ieeexplore.ieee.org/author/37089624001
    ID: 37089624001
    Order: 4
    Author Affiliations:
    • Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
  • Author Name: Zhongjie Guo
    Affiliation: Department of Electronic Engineering, Xi’an University of Technology, Xi’an, China
    Author URL: https://ieeexplore.ieee.org/author/37086477116
    ID: 37086477116
    Order: 5
    Author Affiliations:
    • Department of Electronic Engineering, Xi’an University of Technology, Xi’an, 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

• frame_rate: 40MHz
• power_consumption: 2μW

Applications & Benefits

• cell_imaging: The paper focuses on low power consumption for column-parallel ADC in CMOS image sensors for applications like medical IoT devices which require small pixels for detailed images.
• benefits: Enables energy-efficient, high-speed image processing in compact sensor designs.

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:
  • resolution
  • dynamic_range
  • pixel_size
  • dark_current
  • focal_length
  • aperture
  • field_of_view
  • distortion
  • signal_to_noise_ratio
  • sensitivity
  • shutter_speed
  • noise

Processed JSON Filename

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