DocumentCode
2812142
Title
Design of AGC amplifier for CMOS Image Sensor
Author
Guoyi Yu ; Xuecheng Zou ; Le Zhang ; Qiming Zou ; Meijun Zheng ; Jianfu Zhong
Author_Institution
Sch. of Opt. & Electron. Inf., Huazhong Univ. of Sci. & Techno logy, Wuhan, China
fYear
2012
fDate
21-23 Nov. 2012
Firstpage
34
Lastpage
36
Abstract
This paper designed an automatic gain control(AGC) amplifier for CMOS Image Sensor. The AGC amplifier adopts translinear variable gain amplifier (VGA) to realize a good linearity. It detects valley to present the strength of signal, and uses a succinct adjustment circuit to control the gain of VGA. A bandgap reference not needing start-up circuit was designed for the whole system. Simulated in SMIC 0.35um CMOS, it can compressed the dynamic range of 100kHz signal from 55.32dB to 7.36dB.
Keywords
CMOS image sensors; amplifiers; automatic gain control; AGC amplifier; CMOS image sensor; SMIC; VGA; automatic gain control; design; succinct adjustment circuit; translinear variable gain amplifier; Decision support systems; Erbium; Radio frequency; Automatic gain control(AGC); CMOS Image Sensor; Valley detector(VD); tran slinear; variable gain amplifier(VGA);
fLanguage
English
Publisher
ieee
Conference_Titel
Radio-Frequency Integration Technology (RFIT), 2012 IEEE International Symposium on
Conference_Location
Singapore
Print_ISBN
978-1-4673-2303-1
Type
conf
DOI
10.1109/RFIT.2012.6401605
Filename
6401605
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