Publication detail

A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters

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

Original Title

Type

journal article in Web of Science

Language

English

Original Abstract

This paper introduces an innovative low-voltage, low-power current differencing buffered amplifier (CDBA). The proposed CDBA utilizes a bulk-driven MOS transistor operating in the subthreshold region, allowing it to function effectively at low supply voltages while minimizing power consumption, making it suitable for sensor and biomedical applications. To demonstrate the performance of the proposed CDBA, it is incorporated into the design of a current-mode, third-order low-pass filter that is specifically tailored for bio-sensing applications. Both the CDBA and the low-pass filter are designed and simulated in Cadence Virtuoso using the TSMC 0.18 mu m CMOS process. The CDBA operates at a supply voltage of 0.3 V, consuming 170 nW of power, while the third-order low-pass filter achieves a dynamic range of 57.2 dB with a total harmonic distortion (THD) of 1%.

Keywords

current differencing buffered amplifier; low-pass filter; current-mode circuit; low-voltage; low-power

Authors

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

Released

25. 5. 2025

Publisher

MDPI

Location

BASEL

ISBN

2076-3417

Periodical

Applied Sciences - Basel

Year of study

Number

State

Swiss Confederation

Pages from

Pages to

Pages count

URL

https://doi.org/10.3390/app15105740

Full text in the Digital Library

http://hdl.handle.net/11012/251329

BibTex

@article{BUT198078,
  author="Fabian {Khateb} and Montree {Kumngern} and Tomasz {Kulej}",
  title="A 0.3 V Current Differencing Buffered Amplifier and Its Application in Current-Mode Third-Order Low-Pass Filters",
  journal="Applied Sciences - Basel",
  year="2025",
  volume="15",
  number="10",
  pages="1--14",
  doi="10.3390/app15105740",
  issn="2076-3417",
  url="https://doi.org/10.3390/app15105740"
}