A quad 1/spl times/16 CMOS ROIC with fully differential CTIA-CDS for orthogonally modulated 2-D active imaging systems

Author

Garcia, Jorge ; Sarmiento, Mayra ; Kiamilev, Fouad ; Lawler, William

Author_Institution

Delaware Univ., Newark, DE

fYear

2005

fDate

22-22 Oct. 2005

Firstpage

462

Lastpage

463

Abstract

In order to improve the system sensitivity and to minimize the effects of electronic offset and power supply noise, a fully differential architecture has been implemented. Thus, at the end of each row, the differential row busses are fed to fully differential capacitive transimpedance amplifiers (CTIA´s) that take care of the current-to-voltage conversion. Their outputs are driven externally for digitization and post processing. The remaining of this paper describes the design, fabrication and prototype testing of the fully differential CTIA amplifier

Keywords

CMOS image sensors; differential amplifiers; digital readout; infrared imaging; 2-D active imaging systems; CMOS ROIC; current-to-voltage conversion; digitization; fully differential CTIA-CDS; fully differential capacitive transimpedance amplifiers; orthogonal modulation; postprocessing; Capacitors; Circuit testing; Differential amplifiers; Fabrication; Laboratories; Optical amplifiers; Optical noise; Power supplies; Sampling methods; Switches;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Society, 2005. LEOS 2005. The 18th Annual Meeting of the IEEE

Conference_Location

Sydney, NSW

Print_ISBN

0-7803-9217-5

Type

conf

DOI

10.1109/LEOS.2005.1548070

Filename

1548070