Erickson, E.F. und Young, E.T. und Wolf, J. und Asbrock, J.F. und Lum, N.A. (2002) The SBRC-190 a cryogenic multiplexer for moderate-background FIR astronomy. In: Proceedings FAR-IR, SUB-MM & MM Detector Technoloy Workshop, 211408, 3-15-. NASA. FAR-IR, SUB-MM & MM Detector Technoloy Workshop, Monterey, CA, 1-3 April 2002.
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Kurzfassung
The SBRC 190, a cryogenic multiplexer developed for far-infrared (FIR) photoconductor detectors operating at moderate backgrounds, is described. The circuit is based on the 32-channel CRC 696 CMOS device used on SIRTF. For applications such as encountered on SOFIA or Herschel, the new device permits higher backgrounds, a wider range of backgrounds, faster sampling, and enhanced synchronization of sampling with chopping. A relationship between sampling efficiency and noise requirements needed to achieve background-limited instrument (BLIP) performance is derived. Major design differences relative to the CRC 696 which have been incorporated in the SBRC 190 are: (a) an AC coupled, capacitive feedback transimpedance unit cell, to minimize input offset effects, thereby enabling low detector biases, (b) selectable feedback capacitors to enable operation over a wide range of backgrounds, and (c) clamp and sample & hold output circuits to improve sampling efficiency, which is a concern at the relatively high readout rates required. The paper emphasizes requirements for use on SOFIA, and touches on the design, expected performance, and fabrication of the new multiplexer.
elib-URL des Eintrags: | https://elib.dlr.de/18594/ | ||||||||||||||||||||||||
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Dokumentart: | Konferenzbeitrag (Paper) | ||||||||||||||||||||||||
Zusätzliche Informationen: | LIDO-Berichtsjahr=2003, | ||||||||||||||||||||||||
Titel: | The SBRC-190 a cryogenic multiplexer for moderate-background FIR astronomy | ||||||||||||||||||||||||
Autoren: |
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Datum: | 2002 | ||||||||||||||||||||||||
Erschienen in: | Proceedings FAR-IR, SUB-MM & MM Detector Technoloy Workshop | ||||||||||||||||||||||||
Open Access: | Nein | ||||||||||||||||||||||||
Gold Open Access: | Nein | ||||||||||||||||||||||||
In SCOPUS: | Nein | ||||||||||||||||||||||||
In ISI Web of Science: | Nein | ||||||||||||||||||||||||
Band: | 211408 | ||||||||||||||||||||||||
Seitenbereich: | 3-15- | ||||||||||||||||||||||||
Herausgeber: |
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Verlag: | NASA | ||||||||||||||||||||||||
Name der Reihe: | NASA CP | ||||||||||||||||||||||||
Status: | veröffentlicht | ||||||||||||||||||||||||
Stichwörter: | Multiplexer, Ferninfrarot, Terahertz, Detektor, SOFIA | ||||||||||||||||||||||||
Veranstaltungstitel: | FAR-IR, SUB-MM & MM Detector Technoloy Workshop, Monterey, CA, 1-3 April 2002 | ||||||||||||||||||||||||
HGF - Forschungsbereich: | Verkehr und Weltraum (alt) | ||||||||||||||||||||||||
HGF - Programm: | Weltraum (alt) | ||||||||||||||||||||||||
HGF - Programmthema: | W EW - Erforschung des Weltraums | ||||||||||||||||||||||||
DLR - Schwerpunkt: | Weltraum | ||||||||||||||||||||||||
DLR - Forschungsgebiet: | W EW - Erforschung des Weltraums | ||||||||||||||||||||||||
DLR - Teilgebiet (Projekt, Vorhaben): | NICHT SPEZIFIZIERT | ||||||||||||||||||||||||
Standort: | Berlin-Adlershof | ||||||||||||||||||||||||
Institute & Einrichtungen: | Institut für Weltraumsensorik und Planetenerkundung | ||||||||||||||||||||||||
Hinterlegt von: | Pieth, Susanne | ||||||||||||||||||||||||
Hinterlegt am: | 16 Sep 2005 | ||||||||||||||||||||||||
Letzte Änderung: | 14 Jan 2010 19:29 |
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