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Proceedings Paper

256x1 readout integrated circuit with simultaneous integration mode for two-color infrared detectors
Author(s): Fei Liu; Ruijun Ding; Jiamu Lin; Xiao Shen
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Paper Abstract

A novel 256×1 readout integrated circuit (ROIC) with simultaneous integration mode for two-color (MWIR/LWIR,MWIR/SWIR) n-p-P-P-N HgCdTe infrared detectors is presented in this paper. This ROIC features an input stage based on current mirror integration (CMI) structure, which separates MW (SW) photocurrent signal from mixed signals of LW and MW (MW and SW) and each waveband photocurrent signal is capable to be integrated in uncorrelated-simultaneous mode. A test chip of 256×1 ROIC is designed and fabricated with 0.6μm double poly double metal mixed signal technology. The chip test results prove right function of the circuit. It shows good performance of integration of MW and LW signals. The linearity of MW and LW output voltage- input current curve is over 99%. Power dissipation of the circuit is less than 50 mW. Readout clock frequency is up to 2 MHz.

Paper Details

Date Published: 9 February 2009
PDF: 8 pages
Proc. SPIE 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration, 715816 (9 February 2009); doi: 10.1117/12.806902
Show Author Affiliations
Fei Liu, Shanghai Institute of Technical Physics (China)
Graduate School of the Chinese Academy of Sciences (China)
Ruijun Ding, Shanghai Institute of Technical Physics (China)
Jiamu Lin, Shanghai Institute of Technical Physics (China)
Graduate School of the Chinese Academy of Sciences (China)
Xiao Shen, Shanghai Institute of Technical Physics (China)
Graduate School of the Chinese Academy of Sciences (China)


Published in SPIE Proceedings Vol. 7158:
2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration

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