Title :
CMOS readout integrated circuit for uncooled microbolometers without substrate temperature stabilization
Author :
Jian, L.V. ; Longcheng Que ; Linhai Wei ; Yun Zhou ; Yadong Jiang
Author_Institution :
State Key Lab. of Electron. Thin Film & Integrated Devices, Univ. of Electron. Sci. & Technol. of China, Chengdu, China
Abstract :
A compact and low noise CMOS readout integrated circuit (ROIC) for uncooled microbolometers without substrate temperature stabilization is described. This proposed readout approach is based on the differential current mirror readout architecture. An experimental ROIC has been designed and implemented on silicon using a 0.5 μm COMS technology. The proposed circuitry allows microbolometer array non-uniformity control over a wide temperature change range of approximately 60K while maintaining better than 75 mK NETD using f/1.0 optics.
Keywords :
CMOS integrated circuits; bolometers; current mirrors; differential amplifiers; elemental semiconductors; integrated circuit design; readout electronics; sensor arrays; silicon; CMOS readout integrated circuit; ROIC; Si; differential current mirror readout architecture; microbolometer array nonuniformity control; size 0.5 mum; substrate temperature stabilization; uncooled microbolometer; Arrays; Bolometers; Noise; Resistance; Substrates; Temperature; Temperature dependence; integrated circuit; noise equivalent temperature difference; readout; temperature stabilization; uncooled microbolometers;
Conference_Titel :
Mechatronic Sciences, Electric Engineering and Computer (MEC), Proceedings 2013 International Conference on
Conference_Location :
Shengyang
Print_ISBN :
978-1-4799-2564-3
DOI :
10.1109/MEC.2013.6885117
