Development of a cryogenic GaAs AC-coupled CTIA readout for far-infrared and submillimeter detectors

Hirohisa Nagata; Jun Kobayashi; Hiroshi Matsuo; Yasunori Hibi; Misato Nakahashi; Hirokazu Ikeda; Mikio Fujiwara

doi:10.1117/12.790207

21 July 2008 Development of a cryogenic GaAs AC-coupled CTIA readout for far-infrared and submillimeter detectors

Hirohisa Nagata, Jun Kobayashi, Hiroshi Matsuo, Yasunori Hibi, Misato Nakahashi, Hirokazu Ikeda, Mikio Fujiwara

Proceedings Volume 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV; 70202Q (2008) https://doi.org/10.1117/12.790207
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

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.

Citation Download Citation

Hirohisa Nagata, Jun Kobayashi, Hiroshi Matsuo, Yasunori Hibi, Misato Nakahashi, Hirokazu Ikeda, and Mikio Fujiwara "Development of a cryogenic GaAs AC-coupled CTIA readout for far-infrared and submillimeter detectors", Proc. SPIE 7020, Millimeter and Submillimeter Detectors and Instrumentation for Astronomy IV, 70202Q (21 July 2008); https://doi.org/10.1117/12.790207

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available