A CMOS active pixel image sensor with in-pixel CDS for high-speed cameras
In: Sensors and camera systems for scientific, industrial, and digital photography applications V (San Jose CA, 19-21 January 2004)SPIE proceedings series :250-257
Konferenz
- print, 10 ref
Zugriff:
This paper presents a high-speed CMOS image sensor whose frame rate exceeds 2000 frames/s. The pixel includes a photodiode, a charge-transfer amplifier, and circuitry for correlated double sampling (CDS) and global electronic shuttering. Reset noise, which is a major random noise factor, is reduced by the CDS combined with the charge-transfer amplifier. The total number of devices in the pixel is 11 transistors and 2 MOS capacitors. Test circuits were fabricated using a 0.25μm CMOS process. The sensitivity of the 20 x 20μm2 pixel using the floating diffusion capacitor of 6.2fF and the photodiode area of 15 x 12.7μm2 is 34V/lux-sec. At 1000frames/sec, noise level is 2.43mVrms (dark). The noise level and the sensitivity are greatly improved compared with a 3Tr. type APS implemented with the same technology and a previous version of the APS with in-pixel CDS.
Titel: |
A CMOS active pixel image sensor with in-pixel CDS for high-speed cameras
|
---|---|
Autor/in / Beteiligte Person: | INOUE, Torn ; TAKEUCHI, Shinji ; KAWAHITO, Shoji |
Link: | |
Quelle: | Sensors and camera systems for scientific, industrial, and digital photography applications V (San Jose CA, 19-21 January 2004)SPIE proceedings series :250-257 |
Veröffentlichung: | Bellingham WA: SPIE, 2004 |
Medientyp: | Konferenz |
Umfang: | print, 10 ref |
Schlagwort: |
|
Sonstiges: |
|