电子科技大学学报Issue(2)：282-286,5.DOI:10.3969/j.issn.1001-0548.2014.02.024
一种新型用于VGA的微功耗指数电流电路
New Type of Low-Power Exponential Current Generator for VGA
摘要
Abstract
A novel low-power exponential current generator used for VGA is proposed in this paper. This generator adopts a MOSFET biased in sub-threshold region to generate exponential current. To compensate the variation of process and temperature, a threshold detector and a system solution are proposed. The exponential current generator is verified in TSMC 0.18 µm standard CMOS technology. Within a ±0.41 dB error, the dynamic range of the proposed exponential current generator is 30 dB. The power consumption is 11 µW, and the minimum power source voltage is 0.9 V.关键词
指数电流/指数线性/微功耗/亚阈值/可变增益放大器Key words
exponential current/linear-in-dB/low power/sub-threshold/VGA分类
信息技术与安全科学引用本文复制引用
杜永乾,庄奕琪,李小明,刘伟峰..一种新型用于VGA的微功耗指数电流电路[J].电子科技大学学报,2014,(2):282-286,5.基金项目
部级预研基金 （）
