Title :
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
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;
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
DOI :
10.1109/LEOS.2005.1548070
