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Proceedings Paper

A low noise high readout speed 512×128 ROIC for shortwave InGaAs FPA
Author(s): SongLei Huang; Zhangcheng Huang; Yu Chen; Hengjing Tang; Jiaxiong Fang
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Paper Abstract

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.

Paper Details

Date Published: 4 March 2015
PDF: 6 pages
Proc. SPIE 9521, Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I, 95211J (4 March 2015); doi: 10.1117/12.2178127
Show Author Affiliations
SongLei Huang, Shanghai Institute of Technical Physics (China)
Zhangcheng Huang, Shanghai Institute of Technical Physics (China)
Yu Chen, Shanghai Institute of Technical Physics (China)
Hengjing Tang, Shanghai Institute of Technical Physics (China)
Jiaxiong Fang, Shanghai Institute of Technical Physics (China)


Published in SPIE Proceedings Vol. 9521:
Selected Papers from Conferences of the Photoelectronic Technology Committee of the Chinese Society of Astronautics 2014, Part I
Xun Hou; Zhihong Wang; Lingan Wu; Jing Ma, Editor(s)

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