256x1 readout integrated circuit with simultaneous integration mode for two-color infrared detectors

Fei Liu; Ruijun Ding; Jiamu Lin; Xiao Shen

doi:10.1117/12.806902

9 February 2009 256×1 readout integrated circuit with simultaneous integration mode for two-color infrared detectors

Fei Liu, Ruijun Ding, Jiamu Lin, Xiao Shen

Proceedings Volume 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration; 715816 (2009) https://doi.org/10.1117/12.806902
Event: International Conference of Optical Instrument and Technology, 2008, Beijing, China

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.

Citation Download Citation

Fei Liu, Ruijun Ding, Jiamu Lin, and Xiao Shen "256×1 readout integrated circuit with simultaneous integration mode for two-color infrared detectors", Proc. SPIE 7158, 2008 International Conference on Optical Instruments and Technology: Microelectronic and Optoelectronic Devices and Integration, 715816 (9 February 2009); https://doi.org/10.1117/12.806902

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