High performance read-out IC design for IR image sensor applications
- Authors
- Hwang, Sang Joon; Shin, Ho Hyun; Sung, Man Young
- Issue Date
- 8월-2010
- Publisher
- SPRINGER
- Keywords
- ROIC; Uncooled microbolometer; Differential input mode
- Citation
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING, v.64, no.2, pp.147 - 152
- Indexed
- SCIE
SCOPUS
- Journal Title
- ANALOG INTEGRATED CIRCUITS AND SIGNAL PROCESSING
- Volume
- 64
- Number
- 2
- Start Page
- 147
- End Page
- 152
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/115924
- DOI
- 10.1007/s10470-009-9418-3
- ISSN
- 0925-1030
- Abstract
- In this paper, high performance read-out integrated circuits (ROIC) for infrared (IR) image sensor applications is proposed. Because an uncooled microbolometer image sensor, used in an IR image sensor, is made by a micro electro mechanical systems process, the resistance of bolometer by each process does not appear same value under same temperature condition. This resistance variation generates a different output signal for same input by each chip. In order to improve on these drawbacks, a ROIC, which compensates for the error described above, was designed. Instead of a single input mode, a differential input mode ROIC was proposed and thus, a new circuit structure was proposed. Using results from a computer simulation, improvements such as that the effect of the process error was decreased 10-12% without an additional compensation circuit was found. Based on the simulation results, a prototype device including a ROIC and a micro bolometer with 16 x 16 cell arrays was fabricated and characterized.
- Files in This Item
- There are no files associated with this item.
- Appears in
Collections - College of Engineering > School of Electrical Engineering > 1. Journal Articles
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.