A low noise high readout speed 512×128 readout Integrated circuit (ROIC) based on capacitance trans-impedance amplifier (CTIA) is designed in this paper. The ROIC is flip-chip bonded with Indium bumps to InGaAs detectors which cutoff wavelength is 1.7μm, as a hybrid structure (InGaAs FPA). The ROIC with 30μm pixel pitch and 50fF integrated capacitance, is fabricated in 0.5μm DPTM CMOS process. The results show that output noise is about 3.0E-4V which equivalent readout noise is 95e-, output voltage swing is better than 2.5V; the dynamic range of InGaAs FPA reaches 69.7dB@2ms, and the power dissipation is about 175mw. The peak detectivity of InGaAs FPA reaches 2E12cmHz1/2w-1 at 300K without TEC cooling.


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    Title :

    A low noise high readout speed 512×128 ROIC for shortwave InGaAs FPA


    Contributors:

    Conference:

    Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I ; 2014 ; China,China


    Published in:

    Publication date :

    2015-03-04





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English




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