A 3.3-to-25V all-digital charge pump based system with temperature and load compensation for avalanche photodiode cameras with fixed sensitivity

被引：2

作者：

Mandai, S. ^{[1
]}

Charbon, E. ^{[1
]}

机构：

[1] Delft Univ Technol, Fac Elect Engn, NL-2628 CD Delft, Netherlands

来源：

JOURNAL OF INSTRUMENTATION | 2013年 / 8卷

关键词：

VLSI circuits; Analogue electronic circuits; Detector control systems (detector and experiment monitoring and slow-control systems; architecture; hardware; algorithms; databases); Digital electronic circuits;

D O I：

10.1088/1748-0221/8/03/P03013

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

This paper presents a digitally controlled charge pump (DCP) to supply high voltages, while ensuring temperature and load current independence of excess bias in cameras based on avalanche photodiodes. This is achieved through a single-photon avalanche diode (SPAD) based monitoring mechanism that continuously reconfigures the DCP using a feedback loop to compensate breakdown voltage variations by temperature and load current in real time. The sensitivity of the SPADs, or photon detection probability (PDP), is maintained to within 1.9% when the temperature shifts from 28 degrees C to 65 degrees C and the load current changes from 0 mu A to 100 mu A.

引用

页数：11

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