A Fifth-Order Butterworth OTA-C LPF with Multiple-Output Differential-Input OTA for ECG Applications

Chuan Yu Sun; Shuenn Yuh Lee

doi:10.1109/TCSII.2017.2695366

A Fifth-Order Butterworth OTA-C LPF with Multiple-Output Differential-Input OTA for ECG Applications

Chuan Yu Sun, Shuenn Yuh Lee

電機工程學系

研究成果: Article › 同行評審

57 引文斯高帕斯（Scopus）

摘要

This brief proposes a fifth-order Butterworth operational transconductance amplifier-C (OTA-C) low-pass filter (LPF) with multiple-output differential-input (MODI) OTA structure and metal-insulator-metal capacitors for electrocardiography applications. The current division technology is used as an alternative output pair to provide multiple outputs and achieve high linearity. This technique reduces the number of OTAs of the fifth-order LPF from 11 to 6 as compared with the conventional structure. The design issue of linearity is also considered in the implementation of MODI OTA. The proposed filter is fabricated in a 0.18 μ m complementary metal-oxide-semiconductor technology with an area of 0.12 mm². The LPF achieved a total harmonic distortion of 49.8 dBc under a bandwidth of 50 Hz and input voltage of 86 mV pp at a 1-V supply voltage. The total power dissipation is 350 nW.

原文	English
頁（從 - 到）	421-425
頁數	5
期刊	IEEE Transactions on Circuits and Systems II: Express Briefs
卷	65
發行號	4
DOIs	https://doi.org/10.1109/TCSII.2017.2695366
出版狀態	Published - 2018 4月

All Science Journal Classification (ASJC) codes

電氣與電子工程

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10.1109/TCSII.2017.2695366

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abstract = "This brief proposes a fifth-order Butterworth operational transconductance amplifier-C (OTA-C) low-pass filter (LPF) with multiple-output differential-input (MODI) OTA structure and metal-insulator-metal capacitors for electrocardiography applications. The current division technology is used as an alternative output pair to provide multiple outputs and achieve high linearity. This technique reduces the number of OTAs of the fifth-order LPF from 11 to 6 as compared with the conventional structure. The design issue of linearity is also considered in the implementation of MODI OTA. The proposed filter is fabricated in a 0.18 μ m complementary metal-oxide-semiconductor technology with an area of 0.12 mm2. The LPF achieved a total harmonic distortion of 49.8 dBc under a bandwidth of 50 Hz and input voltage of 86 mV pp at a 1-V supply voltage. The total power dissipation is 350 nW.",

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note = "Funding Information: Manuscript received October 17, 2016; revised January 24, 2017; accepted April 1, 2017. Date of publication April 18, 2017; date of current version March 26, 2018. This work was supported in part by the Chip Implementation Center, and in part by the Ministry of Science and Technology of Taiwan under Grants MOST 105-2218-E-006-023 and MOST 105-2314-B-006-040. This brief was recommended by Associate Editor H. K. Lam. (Corresponding author: Shuenn-Yuh Lee.) The authors are with the Department of Electrical Engineering, National Cheng Kung University, Tainan 701, Taiwan (e-mail: sun901280@hotmail.com; ieesyl@mail.ncku.edu.tw). Publisher Copyright: {\textcopyright} 2004-2012 IEEE.",

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N2 - This brief proposes a fifth-order Butterworth operational transconductance amplifier-C (OTA-C) low-pass filter (LPF) with multiple-output differential-input (MODI) OTA structure and metal-insulator-metal capacitors for electrocardiography applications. The current division technology is used as an alternative output pair to provide multiple outputs and achieve high linearity. This technique reduces the number of OTAs of the fifth-order LPF from 11 to 6 as compared with the conventional structure. The design issue of linearity is also considered in the implementation of MODI OTA. The proposed filter is fabricated in a 0.18 μ m complementary metal-oxide-semiconductor technology with an area of 0.12 mm2. The LPF achieved a total harmonic distortion of 49.8 dBc under a bandwidth of 50 Hz and input voltage of 86 mV pp at a 1-V supply voltage. The total power dissipation is 350 nW.

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A Fifth-Order Butterworth OTA-C LPF with Multiple-Output Differential-Input OTA for ECG Applications

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