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Fast, high-precision readout circuit for detector arrays
| Content Provider | NASA Technical Reports Server (NTRS) |
|---|---|
| Author | Wrigley, Chris J. Key, Richard W. Hancock, Bruce R. Seshadri, Suresh Sander, Stanley P. Cunningham, Thomas J. Rider, David M. Blavier, Jean-Francois L. |
| Copyright Year | 2013 |
| Description | The GEO-CAPE mission described in NASA's Earth Science and Applications Decadal Survey requires high spatial, temporal, and spectral resolution measurements to monitor and characterize the rapidly changing chemistry of the troposphere over North and South Americas. High-frame-rate focal plane arrays (FPAs) with many pixels are needed to enable such measurements. A high-throughput digital detector readout integrated circuit (ROIC) that meets the GEO-CAPE FPA needs has been developed, fabricated, and tested. The ROIC is based on an innovative charge integrating, fast, high-precision analog-to-digital circuit that is built into each pixel. The 128Ã128-pixel ROIC digitizes all 16,384 pixels simultaneously at frame rates up to 16 kHz to provide a completely digital output on a single integrated circuit at an unprecedented rate of 262 million pixels per second. The approach eliminates the need for off focal plane electronics, greatly reducing volume, mass, and power compared to conventional FPA implementations. A focal plane based on this ROIC will require less than 2 W of power on a 1Ã1-cm integrated circuit. The ROIC is fabricated of silicon using CMOS technology. It is designed to be indium bump bonded to a variety of detector materials including silicon PIN diodes, indium antimonide (InSb), indium gallium arsenide (In- GaAs), and mercury cadmium telluride (HgCdTe) detector arrays to provide coverage over a broad spectral range in the infrared, visible, and ultraviolet spectral ranges. |
| File Size | 214100 |
| Page Count | 1 |
| File Format | |
| Alternate Webpage(s) | http://archive.org/details/NASA_NTRS_Archive_20140001414 |
| Archival Resource Key | ark:/13960/t3227wz6s |
| Language | English |
| Publisher Date | 2013-09-01 |
| Access Restriction | Open |
| Subject Keyword | Electronics And Electrical Engineering Mercury Cadmium Tellurides Indium Gallium Arsenides Indium Antimonides Digital Electronics Readout Troposphere Silicon Cmos Pixels Focal Plane Devices Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science |
| Content Type | Text |
| Resource Type | Technical Report |
