Finding the optimal readout integrated circuit for high-resolution quantum well infrared photodetectors

Henk H. Martijn; Urban Halldin; Per OF Helander; Jorgen Alverbro; Jan Y. Andersson

doi:10.1117/12.354579

26 July 1999 Finding the optimal readout integrated circuit for high-resolution quantum well infrared photodetectors

Henk H. Martijn, Urban Halldin, Per OF Helander, Jorgen Alverbro, Jan Y. Andersson

Proceedings Volume 3698, Infrared Technology and Applications XXV; (1999) https://doi.org/10.1117/12.354579
Event: AeroSense '99, 1999, Orlando, FL, United States

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.

Citation Download Citation

Henk H. Martijn, Urban Halldin, Per OF Helander, Jorgen Alverbro, and Jan Y. Andersson "Finding the optimal readout integrated circuit for high-resolution quantum well infrared photodetectors", Proc. SPIE 3698, Infrared Technology and Applications XXV, (26 July 1999); https://doi.org/10.1117/12.354579

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