Cmos Imaging Of Temperature Effects On Pinprinted Xerogel Sensor Microarrays

• doi: 10.1109/TBCAS.2010.2089793
• title: CMOS Imaging of Temperature Effects on Pin-Printed Xerogel Sensor Microarrays
• publisher: IEEE
• isbn:
• issn: 1940-9990
• rank: 1784
• access_type: LOCKED
• content_type: Journals
• abstract: In this paper, we study the effect of temperature on the operation and performance of a xerogel-based sensor microarrays coupled to a complementary metal-oxide semiconductor (CMOS) imager integrated circuit (IC) that images the photoluminescence response from the sensor microarray. The CMOS imager uses a 32 × 32 (1024 elements) array of active pixel sensors and each pixel includes a high-gain phototransistor to convert the detected optical signals into electrical currents. A correlated double sampling circuit and pixel address/digital control/signal integration circuit are also implemented on-chip. The CMOS imager data are read out as a serial coded signal. The sensor system uses a light-emitting diode to excite target analyte responsive organometallic luminophores doped within discrete xerogel-based sensor elements. As a proto type, we developed a 3 × 3 (9 elements) array of oxygen (O2) sensors. Each group of three sensor elements in the array (arranged in a column) is designed to provide a different and specific sensitivity to the target gaseous O2 concentration. This property of multiple sensitivities is achieved by using a mix of two O2 sensitive luminophores in each pin-printed xerogel sensor element. The CMOS imager is designed to be low noise and consumes a static power of 320.4 μW and an average dynamic power of 624.6 μW when operating at 100-Hz sampling frequency and 1.8-V dc power supply.
• article_number: 5661876
• pdf_url: https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=5661876
• html_url: https://ieeexplore.ieee.org/document/5661876/
• abstract_url: https://ieeexplore.ieee.org/document/5661876/
• publication_title: IEEE Transactions on Biomedical Circuits and Systems
• conference_location:
• conference_dates:
• publication_number: 4156126
• is_number: 5765036
• publication_year: 2011
• publication_date: April 2011
• start_page: 189
• end_page: 196
• citing_paper_count: 3
• citing_patent_count: 0
• download_count: 597
• insert_date: 20101210
• index_terms:
  • ieee_terms:
    • CMOS integrated circuits
    • Arrays
    • Temperature sensors
    • Pixel
    • Luminescence
    • Temperature measurement
  • author_terms:
    • ${\rm O}_{2}$ sensors
    • complementary metal–oxide semiconductor (CMOS) imager
    • luminescence
    • optical sensors
    • pin-printing
    • sensor microarrays
    • sensor microsystem
    • temperature
    • xerogel
  • dynamic_index_terms:
    • Microarray
    • Effect Of Temperature
    • Complementary Metal–oxide–semiconductor Image
    • Complementary Metal Oxide Semiconductor Image
    • Sampling Frequency
    • Sensory Systems
    • Optical Signal
    • Sensor Array
    • Array Elements
    • Integrated Circuit
    • Luminophores
    • Phototransistor
    • Sampling Time
    • Voltage Drop
    • Potential Drop
    • IR Drop
    • Gas Temperature
    • Optical Power
    • Lens Power
    • Refractive Power
    • Ruthenium
    • Digital Signal
    • Types Of Sensors
    • Sensor Response
    • Absence Of Quencher
    • Excited State Lifetime
    • Luminescent Sensors
    • High Frequency Range
    • Intensities In The Absence
    • Test Chamber
    • Dark Current
    • Pixel Array
    • External Clock
    • Digital Control
• authors:
  • Author Name: Lei Yao
    Affiliation: Department of Electrical and Computer Engineering, McGill University, Montreal, QUE, Canada
    Author URL: https://ieeexplore.ieee.org/author/37574498200
    ID: 37574498200
    Order: 1
    Author Affiliations:
    • Department of Electrical and Computer Engineering, McGill University, Montreal, QUE, Canada
  • Author Name: Ka Yi Yung
    Affiliation: Department of Chemistry, State University of New York, University at Buffalo, Buffalo, NY, USA
    Author URL: https://ieeexplore.ieee.org/author/37586114800
    ID: 37586114800
    Order: 2
    Author Affiliations:
    • Department of Chemistry, State University of New York, University at Buffalo, Buffalo, NY, USA
  • Author Name: Vamsy P. Chodavarapu
    Affiliation: Department of Electrical and Computer Engineering, McGill University, Montreal, QUE, Canada
    Author URL: https://ieeexplore.ieee.org/author/37300719100
    ID: 37300719100
    Order: 3
    Author Affiliations:
    • Department of Electrical and Computer Engineering, McGill University, Montreal, QUE, Canada
  • Author Name: Frank V. Bright
    Affiliation: Department of Chemistry, State University of New York, University at Buffalo, Buffalo, NY, USA
    Author URL: https://ieeexplore.ieee.org/author/37300881500
    ID: 37300881500
    Order: 4
    Author Affiliations:
    • Department of Chemistry, State University of New York, University at Buffalo, Buffalo, NY, USA

Image Sensor

• sensor_type: CMOS
• resolution: 32x32 (1024 elements)
• dynamic_range: not specified in the document
• pixel_size: 33 µm x 7 µm
• dark_current: 24 mV to 42 mV (output-referred dark current)

Optical Data

• focal_length: 25.4 mm
• aperture: not specified in the document
• field_of_view: not specified in the document
• distortion: not specified in the document

Performance Metrics

• frame_rate: 100 Hz
• signal_to_noise_ratio: not specified in the document
• sensitivity: 6.12 V/nA
• shutter_speed: not specified in the document
• power_consumption: static power of 320.4 µW and average dynamic power of 624.6 µW when operating at 100-Hz sampling frequency.
• noise: varies with sampling time; FPN measured from 77 mV to 33 mV with sampling time.

Applications & Benefits

• cell_imaging: used for monitoring luminescence in sensor applications.
• benefits: Low noise, low power consumption, and high sensitivity.

Supporting Organizations

• supported_by: FQRNT New Researcher Grant, National Science Foundation

Manuscript Details

• publication_date: April 2011

Relevancy Score

• score: 10

Processed JSON Filename

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