Title :
Photocurrent dependent response of a SPAD biased by a charge pump
Author :
Al-Rawhani, Mohammed ; Cumming, David ; Chitnis, Danial ; Collins, Steve
Author_Institution :
Electron. & Electr. Eng., Univ. of Glasgow, Glasgow, UK
Abstract :
A diagnostic pill is required to reach parts of the gastrointestinal tract that are inaccessible to endoscopes and detect the fluorescence from cancer cells. The key component of this pill is a very sensitive light detector that is compact enough to be integrated within the pill. In this paper, a charge pump is described that can bias a single photon avalanche detector as effectively as a bench top power supply.
Keywords :
avalanche photodiodes; cancer; charge pump circuits; patient diagnosis; photodetectors; SPAD; cancer cells; charge pump; diagnostic pill; gastrointestinal tract; light detector; photocurrent dependent response; power supply; single photon avalanche detector; Charge pumps; Detectors; Lighting; Photodiodes; Photonics; Power supplies; Voltage control;
Conference_Titel :
Circuits and Systems (ISCAS), 2011 IEEE International Symposium on
Conference_Location :
Rio de Janeiro
Print_ISBN :
978-1-4244-9473-6
Electronic_ISBN :
0271-4302
DOI :
10.1109/ISCAS.2011.5937684
