Publication result detail

0.5 V, Low-Power Bulk-Driven Current Differencing Transconductance Amplifier

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

Original Title

0.5 V, Low-Power Bulk-Driven Current Differencing Transconductance Amplifier

English Title

0.5 V, Low-Power Bulk-Driven Current Differencing Transconductance Amplifier

Type

WoS Article

Original Abstract

This paper presents a novel low-power low-voltage current differencing transconductance amplifier (CDTA). To achieve a low-voltage low-power CDTA, the BD-MOST (bulk-driven MOS transistor) technique operating in a subthreshold region is used. The proposed CDTA is designed in 0.18 mu m CMOS technology, can operate with a supply voltage of 0.5 V, and consumes 1.05 mu W of power. The proposed CDTA is used to realize a current-mode universal filter. The filter can realize five standard transfer functions of low-pass, band-pass, high-pass and band-stop, and all-pass from the same circuit. Neither component-matching conditions nor input signals of the inverse type are required to realize these filter functions. The current-mode filter offers low-input and high-output impedance and uses grounded capacitors. The natural frequency and quality factor of the filters can be orthogonally controlled. The proposed CDTA and its applications are simulated using SPICE to confirm the feasibility and functionality of the new circuits.

English abstract

This paper presents a novel low-power low-voltage current differencing transconductance amplifier (CDTA). To achieve a low-voltage low-power CDTA, the BD-MOST (bulk-driven MOS transistor) technique operating in a subthreshold region is used. The proposed CDTA is designed in 0.18 mu m CMOS technology, can operate with a supply voltage of 0.5 V, and consumes 1.05 mu W of power. The proposed CDTA is used to realize a current-mode universal filter. The filter can realize five standard transfer functions of low-pass, band-pass, high-pass and band-stop, and all-pass from the same circuit. Neither component-matching conditions nor input signals of the inverse type are required to realize these filter functions. The current-mode filter offers low-input and high-output impedance and uses grounded capacitors. The natural frequency and quality factor of the filters can be orthogonally controlled. The proposed CDTA and its applications are simulated using SPICE to confirm the feasibility and functionality of the new circuits.

Keywords

current differencing transconductance amplifier; bulk-driven MOS transistor; active filter; current-mode circuit; low-voltage low-power circuit

Key words in English

current differencing transconductance amplifier; bulk-driven MOS transistor; active filter; current-mode circuit; low-voltage low-power circuit

Authors

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

RIV year

2025

Released

25.10.2024

Publisher

MDPI

Location

BASEL

ISBN

1424-8220

Periodical

SENSORS

Volume

24

Number

21

State

Swiss Confederation

Pages from

1

Pages to

18

Pages count

18

URL

https://doi.org/10.3390/s24216852

Full text in the Digital Library

http://hdl.handle.net/11012/250738

BibTex

@article{BUT191251,
  author="Montree {Kumngern} and Fabian {Khateb} and Tomasz {Kulej}",
  title="0.5 V, Low-Power Bulk-Driven Current Differencing Transconductance Amplifier",
  journal="SENSORS",
  year="2024",
  volume="24",
  number="21",
  pages="1--18",
  doi="10.3390/s24216852",
  url="https://doi.org/10.3390/s24216852"
}

Documents

sensors-24-06852