A High Precision Current Source Circuit by Means of Switched-Capacitor and PLL for BOST

Q4 Engineering

Research Reports on Information Science and Electrical Engineering of Kyushu University Pub Date : 2008-03-26 DOI:10.15017/1654539

Tianmao Li, H. Tashiro, Haruki Uchihata, Y. Kuroki

引用次数: 0

Abstract

In this work, a high precision current source circuit by means of switched-capacitor and PLL(phase-locked loop) for BOST(build-out-self-test) is presented. A relationship between the reference current value and switching-frequency is analyzed to improve the precision of current source circuit. The proposed circuit operates under 3.3V supply with a 100pA reference current source according to Hspice simulation and shows a precision less than 0.8%.

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一种基于开关电容和锁相环的高精度电流源电路

本文提出了一种基于开关电容和锁相环的高精度电流源电路，用于自检测。分析了基准电流值与开关频率的关系，提高了电流源电路的精度。根据Hspice仿真，该电路工作在3.3V电源和100pA参考电流源下，精度小于0.8%。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Research Reports on Information Science and Electrical Engineering of Kyushu University Engineering-Electrical and Electronic Engineering

CiteScore

0.20

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0.00%

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期刊介绍： Research Reports on Information Science and Electrical Engineering of Kyushu University provides quick publication in English or in Japanese on the most recent findings and achievements in the Faculty of Information Science and Electrical Engineering, Kyushu University.