A 1.25-inch 60-frames/s 8.3-M-pixel digital-output CMOS image sensor

The ultrahigh-definition television (UDTV) camera system requires an image sensor having four times higher resolution and two times higher frame rate than the conventional HDTV systems. Also, an image sensor with a small optical format and low power consumption is required for practical UDTV camera...

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Bibliographic Details
Published in:IEEE journal of solid-state circuits 2005-11, Vol.40 (11), p.2305-2314
Main Authors: Takayanagi, I., Shirakawa, M., Mitani, K., Sugawara, M., Iversen, S., Moholt, J., Nakamura, J., Fossum, E.R.
Format: Article
Language:English
Subjects:
Active pixel sensor
Active pixel sensors
Analog-digital conversion
Applied sciences
Cameras
Circuit properties
CMOS
CMOS image sensor
CMOS image sensors
Design. Technologies. Operation analysis. Testing
Electric, optical and optoelectronic circuits
Electronic circuits
Electronics
Energy consumption
Exact sciences and technology
Format
Frames
HDTV
Image resolution
Image sensors
Imaging devices
Integrated circuits
Optical sensors
parallel architecture
Power consumption
Semiconductor electronics. Microelectronics. Optoelectronics. Solid state devices
Sensors
Signal convertors
Streaming media
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Summary:The ultrahigh-definition television (UDTV) camera system requires an image sensor having four times higher resolution and two times higher frame rate than the conventional HDTV systems. Also, an image sensor with a small optical format and low power consumption is required for practical UDTV camera systems. To respond to these requirements, we have developed an 8.3-M-pixel digital-output CMOS active pixel sensor (APS) for the UDTV application. It features an optical format of 1.25inch, low power consumption of less than 600 mW at dark, while reproducing a low-noise, 60-frames/s progressive scan image. The image sensor is equipped with 1920 on-chip 10-bit analog-to-digital converters and outputs digital data stream through 16 parallel output ports. Design considerations to reproduce a low-noise, high-resolution image at high frame rate of 60 fps are described. Implementation and experimental results of the 8.3-M-pixel CMOS APS are presented.
ISSN:0018-9200
1558-173X
DOI:10.1109/JSSC.2005.857375