A 16-bit two-step pixel-level ADC for 384∗288 infrared focal plane array

This paper presents a novel 16-bit pixel-level analog-to-digital converter (ADC) for the 384*288 Infrared Focal Plane Array (IRFPA). It is a two-step ADC: the first is coarse quantization, and the second is fine quantization. Coarse quantization is to process the most significant 12 bits using a vol...

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Bibliographic Details
Published in2017 IEEE 12th International Conference on ASIC (ASICON) pp. 780 - 783
Main Authors Sijia Yang, Lingzi Luo, Wengao Lu, Guangyi Shi, Binbin Lyu, Yuze Niu, Yacong Zhang, Zhongjian Chen
Format Conference Proceeding
LanguageEnglish
Published IEEE 01.10.2017
Subjects
ADC
Capacitors
Delays
IRFPA
Linearity
low power
pixel-level
Quantization (signal)
Simulation
Transistors
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Summary:This paper presents a novel 16-bit pixel-level analog-to-digital converter (ADC) for the 384*288 Infrared Focal Plane Array (IRFPA). It is a two-step ADC: the first is coarse quantization, and the second is fine quantization. Coarse quantization is to process the most significant 12 bits using a voltage reset method. Fine quantization is to dispose the remaining 4 bits by applying a falling multistep signal on the bottom plate of the integrating capacitor. The ADC is implemented in standard SMIC 0.18μm 1.8V/5V CMOS process, with 100Hz sampling rate.
DOI:10.1109/ASICON.2017.8252592