用于传感应用的1.8 V Gm-C高可调低通滤波器

2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC) Pub Date : 2020-05-01 DOI:10.1109/I2MTC43012.2020.9128692

J. Pérez-Bailón, B. Calvo, N. Medrano, J. Ramírez-Angulo

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引用次数: 2

摘要

本文提出了一种完全集成的一阶低通滤波器，具有两个调谐点，使滤波器具有广泛的通用性。它允许一个细/厚调谐与截止频率跨越几个数量级，从220兆赫到39.1千赫。提出的Gm-C滤波器采用180nm CMOS技术设计，总功耗为1.08 μ W，电源为1.8 V，动态范围高达73 dB。与已有的研究成果相比，该滤波器具有很强的竞争力，能够满足基于阻抗谱的便携式片上传感器接口和生物信号前端接口的需求。

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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A 1.8 V Gm-C Highly Tunable Low Pass Filter for Sensing Applications

This paper presents a fully integrated, first-order Low Pass Filter with 2-tuning points giving a wide versatility to the filter. It allows for a fine/thick tuning with a cutoff frequency that spans over several orders of magnitude, from 220 mHz to 39.1 kHz. The Gm-C filter proposed is designed in a 180 nm CMOS technology with a total power consumption of 1.08 µW for a 1.8 V power supply and a dynamic range up to 73 dB. The proposed filter is a very competitive solution compared with previously reported works, meeting the requirements for portable on chip sensor interfaces based on impedance spectroscopy and biosignal front-end interfaces.

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2020 IEEE International Instrumentation and Measurement Technology Conference (I2MTC)

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