Title :
Pixel design for time-of-flight range detector with time-to-digital converter
Author :
Xiangliang Jin ; Lizhen Tang ; Hongjiao Yang ; Jia Yang ; Weihui Liu
Author_Institution :
Fac. of Mater., Xiangtan Univ., Xiangtan, China
Abstract :
A novel pixel structure for the readout of SPAD range detector has been proposed in this paper, which aimed at 3D ranging applications by means of the direct time-of-flight (D-TOF) detection. The proposed pixel is consist of a single photon avalanche diode (SPAD), quenching-recharging circuit and 10 bit time-to-digital converter which provides a minimum time resolution of 141ps. Coarse-fine architecture has been used to provide both wide dynamic range and high time resolution. The chip has been fabricated in 0.18 μm GSMC 1P4M imaging process. The resulting pixel has a pitch of 100μm.
Keywords :
avalanche diodes; time-digital conversion; 3D ranging applications; D-TOF detection; GSMC 1P4M imaging process; SPAD range detector readout; coarse-fine architecture; direct time-of-flight detection; pixel design; pixel structure; quenching-recharging circuit; single photon avalanche diode; size 0.18 mum; time 141 ps; time-of-flight range detector; time-to-digital converter; word length 10 bit; Abstracts; Biomedical imaging; Detectors; Equations; Image resolution; Logic gates; Three-dimensional displays;
Conference_Titel :
Solid-State and Integrated Circuit Technology (ICSICT), 2014 12th IEEE International Conference on
Conference_Location :
Guilin
Print_ISBN :
978-1-4799-3296-2
DOI :
10.1109/ICSICT.2014.7021270
