SISCAM 32-ch cryogenic readout module with GaAs-JFET ASICs

Details SISCAM 32-ch cryogenic readout module with GaAs-JFET ASICs SISCAM 32-ch cryogenic readout module with GaAs-JFET ASICs

Jul 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010spie.7741e..81m&link_type=abstract

Millimeter, Submillimeter, and Far-Infrared Detectors and Instrumentation for Astronomy V. Edited by Holland, Wayne S.; Zmuidzin

Astronomy and Astrophysics

Astronomy

Scientific paper

We discuss on the development of a 32-ch cryogenic readout module for a superconductive imaging submillimeter-wave camera (SISCAM). The module is composed of GaAs-JFET integrated circuits such as capacitive trans-impedance amplifiers (CTIAs), multiplexer with sample-and-holds and shift-registers. Performances of these integrated circuits are evaluated; 1) amplifier gain of 5000 and gain-bandwidth more than 500 kHz, 2) operation of 32-ch multiplexers addressed by shift-registers, and 3) operation of voltage distributors. Using these GaAs-JFET cryo-ASICs, a 32-ch cryogenic readout module was fabricated for an imaging array of SIS photon detectors at 650 GHz.

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