TITLE:
A PSpice Circuit Model for Single-Photon Avalanche Diodes
AUTHORS:
Yuchong Tian, Junjie Tu, Yanli Zhao
KEYWORDS:
Single-Photon Avalanche Diodes, Circuit Model, Orcad PSpice
JOURNAL NAME:
Optics and Photonics Journal,
Vol.7 No.8B,
August
10,
2017
ABSTRACT:
In this paper, we present an improved circuit model for single-photon avalanche diodes without any convergence problems. The device simulation is based on Orcad PSpice and all the employed components are available in the standard library of the software. In particular, an intuitionistic and simple voltage-controlled current source is adopted to characterize the static behavior, which can better represent the voltage-current relationship than traditional model and reduce computational complexity of simulation. The derived can implement the self-sustaining, self-quenching and the recovery processes of the SPAD. And the simulation shows a reasonable result that the model can well emulate the avalanche process of SPAD.