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Proceedings Paper

Finding the optimal readout integrated circuit for high-resolution quantum well infrared photodetectors
Author(s): Henk H. Martijn; Urban Halldin; Per OF Helander; Jorgen Alverbro; Jan Y. Andersson
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Paper Abstract

To obtain the optimal performance of quantum well IR photodetectors (QWIP) focal plane array, the readout circuit (ROIC) has to be tailored to the detector characteristics. Different concepts will be compared with respect to signal to noise performance, linearity and power consumption. In particular an active direct injection (DI) circuit will be compared with a passive direct injection circuit. The active and passive DI circuits give similar temporal NETD but the passive DI is shown to have superior spatial noise performance. Furthermore, the latter circuit type offers higher flexibility with respect to on-chip signal processing. The intended application is in high-resolution QWIP focal plane arrays.

Paper Details

Date Published: 26 July 1999
PDF: 10 pages
Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); doi: 10.1117/12.354579
Show Author Affiliations
Henk H. Martijn, Industrial Microelectronics Ctr. AB (Sweden)
Urban Halldin, Industrial Microelectronics Ctr. AB (Sweden)
Per OF Helander, Industrial Microelectronics Ctr. AB (Sweden)
Jorgen Alverbro, Industrial Microelectronics Ctr. AB (Sweden)
Jan Y. Andersson, Industrial Microelectronics Ctr. AB (Sweden)


Published in SPIE Proceedings Vol. 3698:
Infrared Technology and Applications XXV
Bjorn F. Andresen; Marija Strojnik, Editor(s)

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