一个完全可调谐的微功率对数域滤波器

J. Ngarmnil, C. Toumazou, T. Lande
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引用次数: 17

摘要

我们提出了一种利用mosfet在弱反转下工作的二阶低失真连续时间滤波器。这个想法是基于最近提出的用于双极技术的对数域滤波方法。介绍了用0.8¿Bicmos工艺制作的测试芯片的测量结果。芯片功耗为1¿W,可调频率范围为100-10kHz。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
A fully tuneable micropower log-domain filter
We present a section of a second-order low distortion continuous-time filter employing MOSFETs operating in weak inversion. The idea is based upon the recently proposed log-domain filter approach used in bipolar technology. Measured results from a test chip fabricated in 0.8¿ Bicmos process are presented. Chip power consumption is 1¿W and the tuneable frequency range is 100-10kHz.
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