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Proceedings Paper

Liquid Helium Operation Of CMOS Multiplexer Circuits For Far Infrared Detector Arrays.
Author(s): B. Dierickx; S. Cos; J. Vermeiren; D. Engemann; R. Faymonville; R. Felten; O. Frenzl
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Paper Abstract

The photopolarimeter ISOPHOT is one of the complex instruments on board of ISO. For that purpose integrating detector signal multiplexers, operating at or below 4 K are designed and manufactured. Although at deep cryogenic temperatures Silicon MOS transistors show anomalies in their characteristics, compared to room temperature operation, it will be demonstrated that the requirements of the ISOPHOT mission can be reached. The circuit design options will be discussed. The results of the measured power dissipation, DC transfer function, noise and stability will be compared with the mission requirements. The power dissipation is lower than 300 pw at a readout rate of 9.4 kHz, the read noise is limited to 200 electrons and the Noise Equivalent Power in combination with Si:Ga detectors is 2.E-17 W√Hz.

Paper Details

Date Published: 8 January 1990
PDF: 8 pages
Proc. SPIE 1157, Infrared Technology XV, (8 January 1990); doi: 10.1117/12.978577
Show Author Affiliations
B. Dierickx, IMEC (Belgium)
S. Cos, IMEC (Belgium)
J. Vermeiren, IMEC (Belgium)
D. Engemann, Battelle Institute e.V. (Germany)
R. Faymonville, Battelle Institute e.V. (Germany)
R. Felten, Battelle Institute e.V. (Germany)
O. Frenzl, Battelle Institute e.V. (Germany)


Published in SPIE Proceedings Vol. 1157:
Infrared Technology XV
Irving J. Spiro, Editor(s)

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