Share Email Print
cover

Proceedings Paper

Development of a cryogenic GaAs AC-coupled CTIA readout for far-infrared and submillimeter detectors
Author(s): Hirohisa Nagata; Jun Kobayashi; Hiroshi Matsuo; Yasunori Hibi; Misato Nakahashi; Hirokazu Ikeda; Mikio Fujiwara
Format Member Price Non-Member Price
PDF $14.40 $18.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

We have been developing cryogenic readout integrated circuits (ROICs) for sensitive detectors at far-infrared and submillimeter wavelengths: The ROICs are constructed from SONY GaAs-JFETs, which have excellent performance even at less than 1 K. In addition, it is suitable device for ultra low background applications because of the extremely low gate leakage current. In the spring of 2008, we have designed and fabricated 4-ch AC-coupled capacitive transimpedance amplifiers and several basic digital circuits giving multiplex function for 32-element SIS photon detector array. The expected performance of the amplifier is as follows; open loop gain of >2000, power consumption <1.5 μW, and input referred noise ~ 1 μV/√Hz@1Hz. A summary of this 2008's experimental production and initial test results are presented in this paper.

Paper Details

Date Published: 21 July 2008
PDF: 10 pages
Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70202Q (21 July 2008); doi: 10.1117/12.790207
Show Author Affiliations
Hirohisa Nagata, Institute of Space and Astronautical Science (Japan)
Jun Kobayashi, National Astronomical Observatory of Japan (Japan)
Hiroshi Matsuo, National Astronomical Observatory of Japan (Japan)
Yasunori Hibi, National Astronomical Observatory of Japan (Japan)
Misato Nakahashi, National Astronomical Observatory of Japan (Japan)
Hirokazu Ikeda, Institute of Space and Astronautical Science (Japan)
Mikio Fujiwara, National Institute of Information and Communications Technology (Japan)


Published in SPIE Proceedings Vol. 7020:
Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV
William D. Duncan; Wayne S. Holland; Stafford Withington; Jonas Zmuidzinas, Editor(s)

© SPIE. Terms of Use
Back to Top