Digital output for short-wave infrared InGaAs linear FPA

doi:10.11972/j.issn.1001-9014.2018.03.001

Home > Archive>Volume 37, Issue 3, 2018 >257-260. DOI:10.11972/j.issn.1001-9014.2018.03.001

Digital output for short-wave infrared InGaAs linear FPA
DOI:
                        10.11972/j.issn.1001-9014.2018.03.001
                    
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Affiliation:State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Science;Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Science;University of Chinese Academy of Sciences;Shanghai Tech University,State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Science;Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Science,State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Science;Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Science,State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Science;Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Science,State Key Laboratories of Transducer Technology,Shanghai Institute of Technical Physics,Chinese Academy of Science;Key Laboratory of Infrared Imaging Materials and Detectors,Shanghai Institute of Technical Physics,Chinese Academy of Science
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Abstract:

A specific digital output research on short-wave infrared InGaAs linear focal plane array (FPA) was reported. Coupled with a laboratory self-designed short-wave infrared 256×1 InGaAs FPA, a successive approximation register (SAR) analog to digital convertor (ADC) with high resolution, low power consumption and small size was designed and fabricated in 0.18 μm CMOS process. The chip consumes 460 μW at a sampling rate of 235 KS/s with the power supply of 3.3 V. The signal to noise ratio (SNR) of the ADC chip is 66.6 dB. The ADC chip was also tested at different integral time to convert the 256×1 InGaAs FPA signal. The results show that the ADC chip can meet the application requirements of the 256×1 InGaAs FPA.

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WEI Yang, WANG Xu-Quan, HUANG Zhang-Cheng., HUANG Song-Lei, FANG Jia-Xiong. Digital output for short-wave infrared InGaAs linear FPA[J]. Journal of Infrared and Millimeter Waves,2018,37(3):257~260

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Received:October 10,2017
Revised:January 02,2018
Adopted:January 08,2018
Online: July 16,2018
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