Controllable Ota Slewrate For Cmos Image Sensor

• doi: 10.1109/ICM50269.2020.9331502
• title: Controllable OTA Slew-rate for CMOS Image Sensor
• publisher: IEEE
• isbn: 978-1-7281-9665-7
• issn:
• rank: 2009
• access_type: LOCKED
• content_type: Conferences
• abstract: In this work, a proposed circuit is implemented using tsmc 0.18um technology of area 16642 um2 with supply voltage equals 5V. A proposed implementation of a controllable Operational Transconductance Amplifier (OTA) slew rate for CMOS image sensor (CIS) is proposed. The slew rate is controlled by switching between various bias circuits for the OTA. The biasing circuit controls the value of OTA biased current, which allows controlling the amplifier's characteristics. As the flicker noise in the main contributor in reducing the quality of image sensors performance. The proposed circuit allows controlling noise effect by increasing the time of reading a pixel signal(OTA slew rate). For reducing the power consumption, the bias cell can be selected regarding the signal to noise ratio (SNR) value.
• article_number: 9331502
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9331502
• html_url: https://ieeexplore.ieee.org/document/9331502/
• abstract_url: https://ieeexplore.ieee.org/document/9331502/
• publication_title: 2020 32nd International Conference on Microelectronics (ICM)
• conference_location: Aqaba, Jordan
• conference_dates: 14-17 Dec. 2020
• publication_number: 9331748
• is_number: 9331492
• publication_year: 2020
• publication_date: 14-17 Dec. 2020
• start_page: 1
• end_page: 4
• citing_paper_count: 1
• citing_patent_count: 0
• download_count: 366
• insert_date: 20210128
• index_terms:
  • ieee_terms:
    • Power demand
    • CMOS image sensors
    • Capacitance
    • Transistors
    • 1f noise
    • Transconductance
    • Signal to noise ratio
  • author_terms:
    • slew rate OTA
    • CIS
    • CMOS image sensor
    • controllable slew rate
  • dynamic_index_terms:
    • Image Sensor
    • Camera Sensor
    • Slew Rate
    • Slew-rate
    • Operational Transconductance Amplifier
    • Signal-to-noise
    • Signal-to-noise Ratio
    • Signal To Noise
    • Signal To Noise Ratio
    • Power Consumption
    • Supply Voltage
    • Operational Amplifier
    • Op-amp
    • Flicker Noise
    • Input Signal
    • Control Signal
    • Sample Holder
    • Noise Sources
    • Signal Values
    • Open Circuit
    • Open-circuit
    • Thermal Noise
    • Current Noise
    • Cadence
    • Current Consumption
    • Control Circuit
    • Inductive Load
    • Load Capacitance
    • Pixel Array
    • Double Sampling
    • Transistor Size
    • Transistor Count
    • Readout Circuit
    • Real Circuit
• isbn_formats:
  • format: Print on Demand(PoD) ISBN, value: 978-1-7281-9665-7, isbnType: New-2005
  • format: Electronic ISBN, value: 978-1-7281-9664-0, isbnType: New-2005
• authors:
  • Author Name: Ola Ibrahim
    Affiliation: Nanoelectronics Integrated Systems Center (NISC), Nile University, Giza, Egypt
    Author URL: https://ieeexplore.ieee.org/author/37088600940
    ID: 37088600940
    Order: 1
    Author Affiliations:
    • Nanoelectronics Integrated Systems Center (NISC), Nile University, Giza, Egypt
  • Author Name: Rana Hesham
    Affiliation: Nanoelectronics Integrated Systems Center (NISC), Nile University, Giza, Egypt
    Author URL: https://ieeexplore.ieee.org/author/37086688512
    ID: 37086688512
    Order: 2
    Author Affiliations:
    • Nanoelectronics Integrated Systems Center (NISC), Nile University, Giza, Egypt
  • Author Name: Ahmed Soltan
    Affiliation: Nanoelectronics Integrated Systems Center (NISC), Nile University, Giza, Egypt
    Author URL: https://ieeexplore.ieee.org/author/38236030600
    ID: 38236030600
    Order: 3
    Author Affiliations:
    • Nanoelectronics Integrated Systems Center (NISC), Nile University, Giza, Egypt

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

• power_consumption: Power consumption varies and is dependent on slew rate: 20uA (lowest) to 197.4uA (highest) at 5V supply
• noise: Flicker noise is a primary concern, with implications on overall sensor performance.

Applications & Benefits

• cell_imaging: Used in various imaging applications such as smartphones, medical devices, and automotive systems.
• benefits: Improves characteristics such as dynamic range, speed, and sensitivity, while reducing flicker noise.

Supporting Organizations

• supported_by: Nile University, TSMC process support.

Manuscript Details

• publication_date: 14-17 Dec. 2020

Relevancy Score

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

Processed JSON Filename

request_9d24d9e9-5d02-4cd2-8775-09bc54671f54-controllable_ota_slewrate_for_cmos_image_sensor.json