Next Article in Journal
Untrimmed Low-Power Thermal Sensor for SoC in 22 nm Digital Fabrication Technology
Previous Article in Journal
A Survey of Neural Front End Amplifiers and Their Requirements toward Practical Neural Interfaces
Article Menu

Export Article

Open AccessArticle
J. Low Power Electron. Appl. 2014, 4(4), 292-303; doi:10.3390/jlpea4040292

Ultra-Low Voltage Sixth-Order Low Pass Filter for Sensing the T-Wave Signal in ECGs

Electronics Laboratory, Physics Department, University of Patras, Rio Patras GR-26504, Greece
*
Author to whom correspondence should be addressed.
Received: 29 September 2014 / Revised: 18 November 2014 / Accepted: 19 November 2014 / Published: 26 November 2014
View Full-Text   |   Download PDF [526 KB, uploaded 26 November 2014]   |  

Abstract

An ultra-low voltage sixth-order low pass filter topology, suitable for sensing the T-wave signal in an electrocardiogram (ECG), is presented in this paper. This is realized using a cascade connection of second-order building blocks constructed from a sinh-domain two-integrator loop. The performance of the filter has been evaluated using the Cadence Analog Design Environment and the design kit provided by the Austria Mikro Systeme (AMS) 0.35-µm CMOS process. The power consumption of filters was 7.21 nW, while a total harmonic distortion (THD) level of 4% was observed for an input signal of 220 pA. The RMS value of the input referred noise was 0.43 pA, and the simulated value of the dynamic range (DR) was 51.1 dB. A comparison with already published counterparts shows that the proposed topology offers the benefits of 0.5-V supply voltage operation and significantly improved power efficiency. View Full-Text
Keywords: CMOS analog integrated circuits; ultra-low voltage circuits; biomedical circuits; sinh-domain filters; ECG signal processing CMOS analog integrated circuits; ultra-low voltage circuits; biomedical circuits; sinh-domain filters; ECG signal processing
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Bertsias, P.; Psychalinos, C. Ultra-Low Voltage Sixth-Order Low Pass Filter for Sensing the T-Wave Signal in ECGs. J. Low Power Electron. Appl. 2014, 4, 292-303.

Show more citation formats Show less citations formats

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
J. Low Power Electron. Appl. EISSN 2079-9268 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top