Fully integrated time-to-amplitude converter for multidimensional TCSPC applications

Matteo Crotti; Ivan Rech; Massimo Ghioni; Ivan Labanca

doi:10.1117/12.886769

4 May 2011 Fully integrated time-to-amplitude converter for multidimensional TCSPC applications

Matteo Crotti, Ivan Rech, Massimo Ghioni, Ivan Labanca

Proceedings Volume 8072, Photon Counting Applications, Quantum Optics, and Quantum Information Transfer and Processing III; 80720C (2011) https://doi.org/10.1117/12.886769
Event: SPIE Optics + Optoelectronics, 2011, Prague, Czech Republic

Abstract

Over the past years an always growing interest has arisen about the measurement technique of time-correlated single photon counting (TCSPC), since it allows the analysis of extremely fast and weak light waveforms with a picoseconds resolution. Consequently, many applications exploiting TCSPC have been developing in several fields such as medicine and chemistry. Moreover, the use of multianode PMT and of single photon avalanche diode arrays led to the development of multichannel acquisition systems, employed in even more applications. Since TCSPC basically consists of the measurement of the arrival time of a photon, a high resolution and high linearity time measurement block is of the utmost importance, and in order to realize multidimensional systems, it has to be integrated to reduce both cost and area. We have designed and fabricated a 4 channel fully integrated time-to-amplitude converter (TAC), built in 0.35 μm Si-Ge technology, characterized by a very good time resolution (less than 50 ps), low differential nonlinearity (better than 2% peak-peak and less than 0.1% rms), high counting rate (16 MHz), low and constant power dissipation (50 mW), and low area occupation (2.58x1.28 mm²). Moreover our measurements show a very little crosstalk between the converters integrated on the same chip; this feature together with low power and low area make the fabricated converter suitable for parallelization, so it can be the starting point for future large scale multi-channel acquisition chains.

Citation Download Citation

Matteo Crotti, Ivan Rech, Massimo Ghioni, and Ivan Labanca "Fully integrated time-to-amplitude converter for multidimensional TCSPC applications", Proc. SPIE 8072, Photon Counting Applications, Quantum Optics, and Quantum Information Transfer and Processing III, 80720C (4 May 2011); https://doi.org/10.1117/12.886769

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KEYWORDS

Logic

Amplifiers

Picosecond phenomena

Capacitors

Single photon

Time metrology

Analog electronics

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