Publication detail

0.5-V High Linear and Wide Tunable OTA for Biomedical Applications

KHATEB, F. KULEJ, T. AKBARI, M. KUMNGERN, M.

Original Title

0.5-V High Linear and Wide Tunable OTA for Biomedical Applications

Type

journal article in Web of Science

Language

English

Original Abstract

This paper presents a low-voltage nano-power multiple-input operational transconductance amplifier (MI-OTA) with high linearity performance and increased input voltage swing. The enhanced performances are achieved thanks to employing several techniques as the bulk-driven, source-degeneration, self-cascode and negative conductance along with the concept of the input signal attenuation formed by multiple-input MOS transistor. The MI-OTA is widely tunable that serves for biological signals processing. A 3rd-order Butterworth band-pass filter (BPF) for electrocardiogram (ECG) signal processing with 55.8 dB dynamic rang is presented. The MI-OTA circuit is designed for 0.5V voltage supply and offers a 0.22% total harmonic distortion (THD) for 0.2V(pp) input signal with total power consumption of 13.4nW. Extensive simulation results including Monte Carlo analysis and process, voltage, temperature (PVT) corners using the 0.18 mu m CMOS technology from TSMC confirm the characteristics of the proposed MI-OTA and the filter.

Keywords

Operational transconductance amplifier (OTA); bulk-driven MOS transistor; multiple-input OTA; high-order filters

Authors

KHATEB, F.; KULEJ, T.; AKBARI, M.; KUMNGERN, M.

Released

4. 8. 2021

Publisher

IEEE

Location

PISCATAWAY

ISBN

2169-3536

Periodical

IEEE Access

Year of study

9

Number

1, IF: 3,745

State

United States of America

Pages from

103784

Pages to

103794

Pages count

11

URL

https://ieeexplore.ieee.org/document/9490226

Full text in the Digital Library

http://hdl.handle.net/11012/200920

BibTex

@article{BUT172154,
  author="Fabian {Khateb} and Tomasz {Kulej} and Meysam {Akbari} and Montree {Kumngern}",
  title="0.5-V High Linear and Wide Tunable OTA for Biomedical Applications",
  journal="IEEE Access",
  year="2021",
  volume="9",
  number="1, IF: 3,745",
  pages="103784--103794",
  doi="10.1109/ACCESS.2021.3098183",
  issn="2169-3536",
  url="https://ieeexplore.ieee.org/document/9490226"
}

Documents

0.5-V High linear and wide tunable OTA for biomedical applications.pdf