DocumentCode :
2547254
Title :
A high dynamic range, high linearity CMOS current-mode image sensor for computed tomography
Author :
Steadman, Roger ; Vogtmeier, Gereon ; Kemna, Armin ; Quossai, Salaheddine Ibnou ; Hosticka, Bedrich J.
Author_Institution :
Philips Res. Labs., Aachen, Germany
fYear :
2005
fDate :
12-16 Sept. 2005
Firstpage :
415
Lastpage :
418
Abstract :
In this work, we show a high dynamic range current-mode detector for computer tomography application. A regulated current mirror structure has been implemented at pixel level that provides with 17 bits dynamic range and a noise floor below 3 pARMS. Non-linearity is kept below 2% and signal bandwidth is higher than 10 kHz. A test structure with 4×4 pixel array is presented is this paper. Both photodiode and current mode amplifier have been integrated into the same CMOS standard process.
Keywords :
CMOS image sensors; computerised tomography; current mirrors; current-mode circuits; photodiodes; CMOS current-mode image sensor; CMOS standard process; computed tomography; current mirror structure; current mode amplifier; current-mode detector; photodiode; Application software; CMOS image sensors; Computed tomography; Computer applications; Detectors; Dynamic range; Image sensors; Linearity; Mirrors; Noise level;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Solid-State Circuits Conference, 2005. ESSCIRC 2005. Proceedings of the 31st European
Print_ISBN :
0-7803-9205-1
Type :
conf
DOI :
10.1109/ESSCIR.2005.1541648
Filename :
1541648
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2547254
بازگشت