A New Capacitance Multiplier Structure with High Multiplication Factor for Ultra-Low-Frequency Filter in Biomedical Applications-Reference-Cited by-同舟云学术

A New Capacitance Multiplier Structure with High Multiplication Factor for Ultra-Low-Frequency Filter in Biomedical Applications

Published:2019-09-11 Issue:07 Volume:29 Page:2050109
ISSN:0218-1266
Container-title:Journal of Circuits, Systems and Computers
language:en
Short-container-title:J CIRCUIT SYST COMP

Author:

Li Yan¹^ORCID,Li Yong Liang²

Affiliation:

1. School of Applied Science, Beijing Information, Science and Technology University, No. 12 Xiaoying East Road, Qinghe, Haidian District, Beijing 100192, P. R. China

2. Integrated Circuit Advanced Process Center, Institute of Microelectronics, Chinese Academy of Sciences, 3 Beitucheng West Road, Chaoyang District, Beijing 100029, P. R. China

Abstract

A novel capacitance multiplier is proposed to implement an ultra-low-frequency filter for physiological signal processing in biomedical applications. With the proposed multiplier, a simple first-order low-pass filter achieves a [Formula: see text]3-dB frequency of 33.4[Formula: see text]μHz with a 1-pF capacitance and a 20[Formula: see text]k[Formula: see text] resistance. This corresponds to a multiplication factor of as large as [Formula: see text]. By changing the controlling terminal, the [Formula: see text]3-dB frequency can be tuned in a wide range of 33.4[Formula: see text]μHz–6.3[Formula: see text]kHz.

Funder

National Natural Science Foundation of China

Scientific Research Projects of Beijing Municipal Education Commission

Publisher

World Scientific Pub Co Pte Lt

Subject

Electrical and Electronic Engineering,Hardware and Architecture,Electrical and Electronic Engineering,Hardware and Architecture

Link

https://www.worldscientific.com/doi/pdf/10.1142/S0218126620501091

Reference20 articles.

1. Wearable Medical Systems for p-Health

2. Perspectives on High Technologies for Low-Cost Healthcare

3. A single current conveyor-based low voltage low power bootstrap circuit for ElectroCardioGraphy and ElectroEncephaloGraphy acquisition systems

4. Fully differential DDA-based fifth and seventh order Bessel low pass filters and buffers for DCR radio systems

5. Fully-integrated transimpedance amplifier for photoplethysmographic signal processing with two-stage Miller capacitance multiplier

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