A Lowvoltage Wide Swing Image Sensor With Simultaneous Energy Harvesting And Imaging Modes

• doi: 10.1109/ICECS58634.2023.10382887
• title: A Low-Voltage Wide Swing Image Sensor with Simultaneous Energy Harvesting and Imaging Modes
• publisher: IEEE
• isbn: 979-8-3503-2650-5
• issn:
• rank: 816
• access_type: LOCKED
• content_type: Conferences
• abstract: This paper proposes a CMOS image sensor that can achieves imaging and energy harvesting simultaneously without introducing additional P-N junctions in the pirel array. The proposed pixel utilizes the vertical N+P-well/DNW/P-sub structures as photodiodes based on a standard 180 nm CMOS mixed-signal process. The N+P-well is used for imaging, while the P-well/DNW and DNW/P-sub are used for energy harvesting with shorting P-well and P-sub together. Moreover, the traditional 4 T pirel has been improved by using CMOS pairs as the switches and zero-threshold NMOS as the source follower. The rail-to-rail pixel output swing can be achieved. Simulation results show that the dynamic range is increased by 13.4 dB compared with the traditional 4 T pirel. Single pixel occupies an area of $11 \times 13~\mathrm{mm}^{2}$ with a fill factor of 72%. An image sensor with 32 × 32 proposed pixel array and a dual-channel PWM quantizer is designed. Simulation results show that the average power consumption of the image sensor is approximately 6.7$\mu$W@2MHz.
• article_number: 10382887
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=10382887
• html_url: https://ieeexplore.ieee.org/document/10382887/
• abstract_url: https://ieeexplore.ieee.org/document/10382887/
• publication_title: 2023 30th IEEE International Conference on Electronics, Circuits and Systems (ICECS)
• conference_location: Istanbul, Turkiye
• conference_dates: 4-7 Dec. 2023
• publication_number: 10382705
• is_number: 10382711
• publication_year: 2023
• publication_date: 4-7 Dec. 2023
• start_page: 1
• end_page: 4
• citing_paper_count: 1
• citing_patent_count: 0
• download_count: 176
• insert_date: 20240110
• index_terms:
  • ieee_terms:
    • Image sensors
    • Power demand
    • Simulation
    • Voltage
    • Pulse width modulation
    • Dynamic range
    • Energy harvesting
  • author_terms:
    • image sensor
    • energy harvesting
    • wide swing
    • low voltage
    • PWM
  • dynamic_index_terms:
    • Imaging Modalities
    • Low Voltage
    • Energy Harvesting
    • Image Sensor
    • Camera Sensor
    • Simultaneous Imaging
    • Simultaneous Energy
    • Simultaneous Mode
    • Wide Swings
    • Harvesting Mode
    • Energy Harvesting Mode
    • Simultaneous Energy Harvesting
    • Dynamic Range
    • Power Consumption
    • Photodiode
    • Fill Factor
    • Pixel Array
    • Output Pixel
    • Pulse Width
    • Pulsewidth Modulation
    • Output Signal
    • Final Output
    • Rising Edge
    • Photocurrent
    • Current Source
    • Current Regulations
    • Short-circuit Current
    • Threshold Voltage
    • Maximum Voltage
    • Output Channels
    • Voltage Swing
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 979-8-3503-2650-5, isbnType: New-2005
  • format: Electronic ISBN, value: 979-8-3503-2649-9, isbnType: New-2005
• authors:
  • Author Name: Zhipeng Li
    Affiliation: School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
    Author URL: https://ieeexplore.ieee.org/author/37088515443
    ID: 37088515443
    Order: 1
    Author Affiliations:
    • School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
  • Author Name: Jian Guan
    Affiliation: School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
    Author URL: https://ieeexplore.ieee.org/author/37089278485
    ID: 37089278485
    Order: 2
    Author Affiliations:
    • School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
  • Author Name: Haoning Sun
    Affiliation: School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
    Author URL: https://ieeexplore.ieee.org/author/37089510616
    ID: 37089510616
    Order: 3
    Author Affiliations:
    • School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
  • Author Name: Yuqi Lin
    Affiliation: Fu Foundation School of Engineering and Applied Science, Columbia University, New York, U.S.A
    Author URL: https://ieeexplore.ieee.org/author/37089589117
    ID: 37089589117
    Order: 4
    Author Affiliations:
    • Fu Foundation School of Engineering and Applied Science, Columbia University, New York, U.S.A
  • Author Name: Wenji Mo
    Affiliation: School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
    Author URL: https://ieeexplore.ieee.org/author/37090012525
    ID: 37090012525
    Order: 5
    Author Affiliations:
    • School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
  • Author Name: Jingjing Liu
    Affiliation: School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China
    Author URL: https://ieeexplore.ieee.org/author/37675821800
    ID: 37675821800
    Order: 6
    Author Affiliations:
    • School of Electronics and Communication Engineering, Sun Yat-sen University, Shenzhen, China

Image Sensor

• sensor_type: CMOS
• resolution: 32x32 pixels array
• dynamic_range: 13.4 dB improvement over traditional 4T pixel
• pixel_size: 11x13 µm
• dark_current: Not specified in the text

Optical Data

• focal_length: Not specified in the text
• aperture: Not specified in the text
• field_of_view: Not specified in the text
• distortion: Not specified in the text

Performance Metrics

• frame_rate: 2 MHz
• signal_to_noise_ratio: Not specified in the text
• sensitivity: Not specified in the text
• shutter_speed: Not specified in the text
• power_consumption: Approximately 6.7 µW@2MHz
• noise: Not specified in the text

Applications & Benefits

• cell_imaging: Not specified in the text
• benefits: Simultaneous energy harvesting and imaging modes without additional P-N junctions.

Supporting Organizations

• supported_by: National Natural Science Foundation of China with project number 62174181

Manuscript Details

• publication_date: 4-7 Dec. 2023

Relevancy Score

• score: 10

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