Publication detail

0.5 V fifth-order butterworth low-pass filter using multiple-input OTA for ECG applications

KUMNGERN, M. AUPITHAK, A. KHATEB, F. KULEJ, T.

Original Title

0.5 V fifth-order butterworth low-pass filter using multiple-input OTA for ECG applications

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents a 0.5 V fifth-order Butterworth low-pass filter based on multiple-input operational transconductance amplifiers (OTA). The filter is designed for electrocardiogram (ECG) acquisition systems and operates in the subthreshold region with nano-watt power consumption. The used multiple-input technique simplifies the overall structure of the OTA and reduces the number of active elements needed to realize the filter. The filter was designed and simulated in the Cadence environment using a 0.18 µm Complementary Metal Oxide Semiconductor (CMOS) process from Taiwan Semiconductor Manufacturing Company (TSMC). Simulation results show that the filter has a bandwidth of 250 Hz, a power consumption of 34.65 nW, a dynamic range of 63.24 dB, attaining a figure-of-merit of 0.0191 pJ. The corner (process, voltage, temperature: PVT) and Monte Carlo (MC) analyses are included to prove the robustness of the filter.

Keywords

Fifth-order low-pass filter; operational transconductance amplifier; multiple-input bulk-driven technique; subthreshold region; nanopower

Authors

KUMNGERN, M.; AUPITHAK, A.; KHATEB, F.; KULEJ, T.

Released

21. 12. 2020

Publisher

MDPI

Location

SWITZERLAND

ISBN

1424-8220

Periodical

SENSORS

Year of study

20

Number

24

State

Swiss Confederation

Pages from

1

Pages to

16

Pages count

16

URL

https://www.mdpi.com/1424-8220/20/24/7343

Full text in the Digital Library

http://hdl.handle.net/11012/195819

BibTex

@article{BUT167547,
  author="KUMNGERN, M. and AUPITHAK, A. and KHATEB, F. and KULEJ, T.",
  title="0.5 V fifth-order butterworth low-pass filter using multiple-input OTA for ECG applications",
  journal="SENSORS",
  year="2020",
  volume="20",
  number="24",
  pages="1--16",
  doi="10.3390/s20247343",
  issn="1424-8220",
  url="https://www.mdpi.com/1424-8220/20/24/7343"
}

Documents

0.5 V Fifth-Order Butterworth Low-Pass Filter Using Multiple-Input OTA for ECG Applications.pdf