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Proceedings Paper

A 30 frames-per-second 18-million pixel image sensor for space applications
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Paper Abstract

ITT Geospatial Systems has space-qualified a visible band interline Charge Coupled Device (CCD) image sensor with 18 million pixels developed using commercial technology. The sensor is comprised of an 4320 (H) x 4144 (V) array of 8 micron square pixels. With multiple analog outputs each operating at 20 MHz the sensor will support 30 frames per second continuous video capture. The pixel incorporates a pinned photodiode, vertical overflow drain and microlens to achieve low dark current, lag-free imaging with highspeed global electronic shutter at high quantum efficiency (QE). The vertical and horizontal CCD's are true two-phase designs which support an integrate-while-read operation. The sensor chip is mounted on an Aluminum Nitride co-fired ceramic package optimized for electrical signal integrity, thermal and optical stability. The architecture supports quadrant redundancy. The complete assembly has been space-qualified to a Technology Readiness Level (TRL) of 6 with Total Ionization Dose (TID) radiation testing at 25 Krad. The sensor exceeds 12-bit of dynamic range and 31% QE with 5 W of total power. The nonlinearity is measured to be 1.0% while the global non-uniformity is less than 2%. The low defect density of the CCD sensor allows high resolution video imaging in a space environment.

Paper Details

Date Published: 23 May 2011
PDF: 6 pages
Proc. SPIE 8044, Sensors and Systems for Space Applications IV, 80440P (23 May 2011); doi: 10.1117/12.884247
Show Author Affiliations
Paul P. K. Lee, ITT Corp. Geospatial Systems (United States)
J. Daniel Newman, ITT Corp. Geospatial Systems (United States)
Andrew P. Sacco, ITT Corp. Geospatial Systems (United States)

Published in SPIE Proceedings Vol. 8044:
Sensors and Systems for Space Applications IV
Khanh D. Pham; Henry Zmuda; Joseph Lee Cox; Greg J. Meyer, Editor(s)

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