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

fYear

2014

fDate

28-31 Oct. 2014

Firstpage

1

Lastpage

3

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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICSICT.2014.7021270

Filename

7021270