用于低压变送器驱动的精确CMOS电流源

Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257) Pub Date : 2001-08-14 DOI:10.1109/MWSCAS.2001.986153

Guangbin Zhang, S. Sterrantino, Jian Zhou, Jin Liu

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引用次数: 3

摘要

本文介绍了一种用于低压电流型变送器驱动的精确CMOS电流源的设计。它由二元加权电流镜和内置自检(BIST)结构组成，用于自测量和校准。尽管晶体管失配，电源和温度变化，电流源可以达到/spl + /0.5%的精度。

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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An accurate CMOS current source for low-voltage transmitter drivers

Presented in this paper is the design of an accurate CMOS current source for low voltage current-mode transmitter drivers. It is composed of binary weighted current mirrors and built-in-self-test (BIST) structures for self-measurement and calibration. The current source can achieve /spl plusmn/0.5% accuracy, despite of transistor mismatch, power supply and temperature variations.

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Proceedings of the 44th IEEE 2001 Midwest Symposium on Circuits and Systems. MWSCAS 2001 (Cat. No.01CH37257)

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