Publication detail

Nanopower multiple-input DTMOS OTA and its applications to high-order filters for biomedical systems

KUMNGERN, M. KULEJ, T. KHATEB, F. STOPJAKOVÁ, V. KUMAR RANJAN, R.

Original Title

Nanopower multiple-input DTMOS OTA and its applications to high-order filters for biomedical systems

Type

journal article in Web of Science

Language

English

Original Abstract

A new solution for a low-voltage multiple-input dynamic threshold operational transconductance amplifier (MIDT OTA) for low-frequency signal processing applications is presented. The differential pairs of the proposed OTA combine, for the first time, the multiple-input MOS technique along with the dynamic threshold voltage MOS to achieve a very simple and power-efficient CMOS structure with increased total transconductance. Further, the proposed MIDT OTA has been used to realize a fifth-order low-pass filter (LP) and a sixth-order band-pass filter (BP) using coupled-biquads. The proposed OTA and the filter applications are supplied with 0.5 V and consume 5 nW and 25 nW, respectively. The input band pass filter noise is 82.76 mu V, while the dynamic range is 59.5 dB for the third intermodulation distortion (IMD) of 2%. The proposed circuits were designed in a 0.18 mu m TSMC technology, and validated by simulations using Cadence platform.

Keywords

Operational transconductance amplifier; Dynamic threshold MOS; Multiple-input bulk-driven MOS; High-order filters

Authors

KUMNGERN, M.; KULEJ, T.; KHATEB, F.; STOPJAKOVÁ, V.; KUMAR RANJAN, R.

Released

26. 2. 2021

Publisher

ELSEVIER GMBH

Location

MUNICH

ISBN

1434-8411

Periodical

AEU - International Journal of Electronics and Communications

Year of study

130

Number

, IF: 2.924

State

Federal Republic of Germany

Pages from

1

Pages to

9

Pages count

9

URL

https://doi.org/10.1016/j.aeue.2020.153576

BibTex

@article{BUT169892,
  author="Montree {Kumngern} and Tomasz {Kulej} and Fabian {Khateb} and Viera {Stopjaková} and Rajeev {Kumar Ranjan}",
  title="Nanopower multiple-input DTMOS OTA and its applications to high-order filters for biomedical systems",
  journal="AEU - International Journal of Electronics and Communications",
  year="2021",
  volume="130",
  number=", IF: 2.924",
  pages="1--9",
  doi="10.1016/j.aeue.2020.153576",
  issn="1434-8411",
  url="https://doi.org/10.1016/j.aeue.2020.153576"
}