A 69 Mu M Pixelpitch Backilluminated Global Shutter Cmos Image Sensor With Pixelparallel 14Bit Subthreshold Adc

• doi: 10.1109/JSSC.2018.2863947
• title: A 6.9- $\mu$ m Pixel-Pitch Back-Illuminated Global Shutter CMOS Image Sensor With Pixel-Parallel 14-Bit Subthreshold ADC
• publisher: IEEE
• isbn:
• issn: 1558-173X
• rank: 477
• access_type: LOCKED
• content_type: Journals
• abstract: In this paper, we report on a back-illuminated, global shutter, CMOS image sensor (CIS) with a pixel-parallel, single-slope analog-to-digital converter (ADC). We adopted a digital bucket relay transfer with multistage flip-flop connection, a pixel unit Cu-Cu connection, and positive-feedback circuitry, to realize a 6.9-μm pixel-pitch, 1.46-Mpixel pixel-parallel ADC. By operating the comparator with a bias current in the subthreshold region of 7.74-111 nA, we succeeded in reducing the peak current during simultaneous ADC. In combination with an ADC standby operation, we succeeded in further reducing the pixel-parallel ADC power consumption. With these techniques, we realized a normalized figure of merit of 0.24 nJ·e-rms/step calculated by dividing the entire sensor power by the effective ADC resolution at a subthreshold current of 111 nA during 660 frames/s operation.
• article_number: 8454786
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=8454786
• html_url: https://ieeexplore.ieee.org/document/8454786/
• abstract_url: https://ieeexplore.ieee.org/document/8454786/
• publication_title: IEEE Journal of Solid-State Circuits
• conference_location:
• conference_dates:
• publication_number: 4
• is_number: 8515210
• publication_year: 2018
• publication_date: Nov. 2018
• start_page: 3017
• end_page: 3025
• citing_paper_count: 29
• citing_patent_count: 0
• download_count: 4680
• insert_date: 20180905
• index_terms:
  • ieee_terms:
    • Latches
    • Transistors
    • Repeaters
    • Analog-digital conversion
    • Logic gates
    • CMOS image sensors
    • MOS devices
  • author_terms:
    • Analog-to-digital conversion (ADC)
    • back illumination
    • CMOS image sensors (CIS)
    • Cu–Cu connection
    • global shutter (GS)
    • imagers
    • in-pixel ADC
    • stacking
    • subthreshold current
  • dynamic_index_terms:
    • Analog-to-digital Converter
    • Analog-to-digital
    • Digital-to-analog Converter
    • Image Sensor
    • Camera Sensor
    • Global Shutter
    • Positive Feedback
    • Self-reinforcing
    • Power Consumption
    • Figure Of Merit
    • Figure-of-merit
    • Bias Current
    • Dynamic Range
    • Control Signal
    • Binary Code
    • Noise Suppression
    • Active Noise Control
    • Noise-canceling
    • Noise Cancellation
    • Output Node
    • Parasitic Capacitance
    • Propagation Delay
    • Acquisition Phase
    • Design Constraints
    • Retention Signal
    • Circuit Performance
    • Circuit Operation
    • Operational Amplifier
    • Op-amp
    • Downstream Circuits
    • Circuit Configuration
    • Conventional Configuration
• authors:
  • Author Name: Masaki Sakakibara
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37414749400
    ID: 37414749400
    Order: 1
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Koji Ogawa
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37086498989
    ID: 37086498989
    Order: 2
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Shin Sakai
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37411486800
    ID: 37411486800
    Order: 3
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Yasuhisa Tochigi
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/38233693900
    ID: 38233693900
    Order: 4
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Katsumi Honda
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/38236274500
    ID: 38236274500
    Order: 5
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Hidekazu Kikuchi
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088746855
    ID: 37088746855
    Order: 6
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Takuya Wada
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37086348928
    ID: 37086348928
    Order: 7
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Yasunobu Kamikubo
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37355201000
    ID: 37355201000
    Order: 8
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Tsukasa Miura
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37086348300
    ID: 37086348300
    Order: 9
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Masahiko Nakamizo
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088734448
    ID: 37088734448
    Order: 10
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Naoki Jyo
    Affiliation: Sony Semiconductor Manufacturing, Kumamoto, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088744158
    ID: 37088744158
    Order: 11
    Author Affiliations:
    • Sony Semiconductor Manufacturing, Kumamoto, Japan
  • Author Name: Ryo Hayashibara
    Affiliation: Sony Semiconductor Manufacturing, Kumamoto, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088735685
    ID: 37088735685
    Order: 12
    Author Affiliations:
    • Sony Semiconductor Manufacturing, Kumamoto, Japan
  • Author Name: Shinya Miyata
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088742108
    ID: 37088742108
    Order: 13
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Satoshi Yamamoto
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088125177
    ID: 37088125177
    Order: 14
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Yoshiyuki Ota
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088739999
    ID: 37088739999
    Order: 15
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Hirotsugu Takahashi
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/38149590900
    ID: 38149590900
    Order: 16
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Tadayuki Taura
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37088489152
    ID: 37088489152
    Order: 17
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Yusuke Oike
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37267320700
    ID: 37267320700
    Order: 18
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Keiji Tatani
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37086017179
    ID: 37086017179
    Order: 19
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Takayuki Ezaki
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/38235907400
    ID: 38235907400
    Order: 20
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan
  • Author Name: Teruo Hirayama
    Affiliation: Sony Semiconductor Solutions, Atsugi, Japan
    Author URL: https://ieeexplore.ieee.org/author/37397997900
    ID: 37397997900
    Order: 21
    Author Affiliations:
    • Sony Semiconductor Solutions, Atsugi, Japan

Image Sensor

• sensor_type: CMOS
• resolution: 1.46-Mpixel
• dynamic_range: 83 dB
• pixel_size: 6.9 µm
• dark_current: 7.74 nA

Optical Data

• focal_length: Not specified
• aperture: Not specified
• field_of_view: Not specified
• distortion: Not specified

Performance Metrics

• frame_rate: 660 fps
• power_consumption: Total power consumption: 654 mW in low-power mode; 746 mW in low-noise mode.
• noise: 8.77 e−rms / 5.15 e−rms for different analog gains.

Applications & Benefits

• cell_imaging: The image sensor has applications in smartphone cameras, medical imaging devices, and automotive systems due to its low power and high-speed performance.
• benefits: High speed, low power consumption, high dynamic range, and noise performance make it suitable for advanced imaging applications.

Supporting Organizations

• supported_by: Sony Semiconductor Solutions, Sony Semiconductor Manufacturing

Manuscript Details

• publication_date: Nov. 2018

Relevancy Score

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

Processed JSON Filename

request_22064a97-6132-413e-a19b-2cdcfbdff62f-a_69_mu_m_pixelpitch_backilluminated_global_shutter_cmos_image_sensor_with_pixelparallel_14bit_subthreshold_adc.json