NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Fast Imaging Detector Readout Circuits with In-Pixel ADCs for Fourier Transform Imaging SpectrometersFocal plane arrays (FPAs) with high frame rates and many pixels benefit several upcoming Earth science missions including GEO-CAPE, GACM, and ACE by enabling broader spatial coverage and higher spectral resolution. FPAs for the PanFTS, a high spatial resolution Fourier transform spectrometer and a candidate instrument for the GEO-CAPE mission are the focus of the developments reported here, but this FPA technology has the potential to enable a variety of future measurements and instruments. The ESTO ACT Program funded the developed of a fast readout integrated circuit (ROIC) based on an innovative in-pixel analog-to-digital converter (ADC). The 128 X 128 pixel ROIC features 60 ?m pixels, a 14-bit ADC in each pixel and operates at a continuous frame rate of 14 kHz consuming only 1.1 W of power. The ROIC outputs digitized data completely eliminating the bulky, power consuming signal chains needed by conventional FPAs. The 128 X 128 pixel ROIC has been fabricated in CMOS and tested at the Jet Propulsion Laboratory. The current version is designed to be hybridized with PIN photodiode arrays via indium bump bonding for light detection in the visible and ultraviolet spectral regions. However, the ROIC design incorporates a small photodiode in each cell to permit detailed characterization of the ROICperformance without the need for hybridization. We will describe the essential features of the ROIC design and present results of ROIC performance measurements.
Document ID
20120013132
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Rider, D.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Blavier, J-F.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Cunningham, T.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Hancock, B.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Key, R.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Pannell, Z.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sander, S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Seshadri, S.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Sun, C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wrigley, C.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 26, 2013
Publication Date
June 21, 2011
Subject Category
Electronics And Electrical Engineering
Meeting Information
Meeting: Earth Science Technology Forum
Location: Pasadena, CA
Country: United States
Start Date: June 21, 2011
Distribution Limits
Public
Copyright
Other
Keywords
focal plane arrays (FPAs)
fast imaging

Available Downloads

There are no available downloads for this record.
No Preview Available