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EnglishAdvanced microscopy applications such as Fluorescence Lifetime Imaging Microscopy (FLIM) require detectors possessing high detection efficiency of incident photons and high timing resolution at the same time. One of the emerging technologies in this field is based on Single-Photon Avalanche Diodes (SPADs) which can easily be integrated into arrays in conventional CMOS technologies, providing picosecond timing resolution at a low fabrication cost. The feasibility of in-pixel analog processing circuits to replace area-consuming digital readout circuits has been recently demonstrated. Without sacrificing counting accuracy, analog circuits contain a much lower number of transistors, making the pixel design compact. In this paper we present an analysis of two different analog readout circuits for compact SPAD pixels. The proposed analog counters offer sub-nanosecond gating capabilities and are therefore suitable for FLIM applications.
| Titolo: | Design of CMOS Gated Analog Readout Circuits for SPAD Pixel Arrays | |
| Autori: | Panina, Ekaterina; Dalla Betta, Gian Franco; Pancheri, Lucio; Stoppa, David | |
| Autori Unitn: | ||
| Titolo del volume contenente il saggio: | Proceedings of the 8th Conference on Ph.D. Research In Micro-Electronics & Electronics Conference (PRIME 2012) | |
| Luogo di edizione: | Berlin | |
| Casa editrice: | VDE-Verlag | |
| Anno di pubblicazione: | 2012 | |
| ISBN: | 9783800734429 | |
| Handle: | http://hdl.handle.net/11572/92861 | |
| Appare nelle tipologie: | 04.1 Saggio in atti di convegno (Paper in proceedings) |
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