Publication detail

0.5-V High-Order Universal Filter for Bio-Signal Processing Applications

KUMNGERN, M. KHATEB, F. KULEJ, T. LERKVARANYU, S.

Original Title

0.5-V High-Order Universal Filter for Bio-Signal Processing Applications

Type

journal article in Web of Science

Language

English

Original Abstract

In this paper, a novel multiple-input operational transconductance amplifier (MI-OTA) is proposed. The MI-OTA can be obtained by using the multiple-input bulk-driven MOS transistor (MIBD MOST) technique. The circuit structure is simple, can operate with a supply voltage of 0.5 V, and consumes 937 pW at a current setting of 625 pA. The proposed MI-OTA was used to implement a high-order multiple-input voltage-mode universal filter. The proposed filter can provide non-inverting and inverting low-pass, high-pass, band-pass, band-stop, and all-pass transfer functions to the same topology. In addition, it has a high input impedance and does not need any inverted input signals, so there is no additional buffering circuit. The proposed filter can be used for biological signal processing. The proposed MI-OTA and the second-order universal filter were simulated in Cadence using CMOS process parameters of 0.18 mu m from TSMC to verify the functionality and performance of the new structures.

Keywords

operational transconductance amplifier (OTA); high-order filter; multiple-input MOS transistor (MI MOST); bulk-driven technique; low-voltage; low-power

Authors

KUMNGERN, M.; KHATEB, F.; KULEJ, T.; LERKVARANYU, S.

Released

3. 4. 2025

Publisher

MDPI

Location

BASEL

ISBN

2076-3417

Periodical

Applied Sciences - Basel

Year of study

15

Number

7

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://doi.org/10.3390/app15073969

Full text in the Digital Library

http://hdl.handle.net/11012/251061

BibTex

@article{BUT197759,
  author="Montree {Kumngern} and Fabian {Khateb} and Tomasz {Kulej} and Somkiat {Lerkvaranyu}",
  title="0.5-V High-Order Universal Filter for Bio-Signal Processing Applications",
  journal="Applied Sciences - Basel",
  year="2025",
  volume="15",
  number="7",
  pages="1--18",
  doi="10.3390/app15073969",
  issn="2076-3417",
  url="https://doi.org/10.3390/app15073969"
}