Low-Voltage Current-Mode Analog Filter Using Current Differencing Transconductance Amplifier

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F26%3A00564811" target="_blank" >RIV/60162694:G43__/26:00564811 - isvavai.cz</a>

Alternative codes found

RIV/00216305:26220/26:0198649

Result on the web

<a href="https://ieeexplore.ieee.org/document/11021560" target="_blank" >https://ieeexplore.ieee.org/document/11021560</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/access.2025.3576142" target="_blank" >10.1109/access.2025.3576142</a>

Result language

angličtina

Original language name

Low-Voltage Current-Mode Analog Filter Using Current Differencing Transconductance Amplifier

Original language description

This paper presents a new low-voltage, low-power current-mode active filter with three inputs and seven outputs. The design is implemented using three current differencing transconductance amplifiers (CDTAs) and two grounded capacitors. The proposed current-mode filter can realize both non-inverting and inverting transfer functions for low-pass, band-pass, high-pass, band-stop, and all-pass filters within a single topology. It features low input impedance, high output impedance, and eliminates issues related to inverting inputs, multiple input signals, and input matching conditions. The natural frequency of the filters can be electronically controlled. The bulk-driven MOS transistor technique is employed in the CDTA to enable operation at low supply voltages, with transistors operating in the subthreshold region to achieve low power consumption. This version of the CDTA also incorporates a z-copy terminal, which enhances its versatility for current-mode circuit applications. Simulations conducted in Cadence Virtuoso using 0.18 mu m CMOS technology from TSMC validate the effectiveness of the proposed filter and CDTA. The filter operates with a supply voltage of 0.45 V, consumes 1.039 mu W of power, achieves a total harmonic distortion (THD) of 1% with a 14 nA amplitude input sine wave signal, and provides a dynamic range of 65.9 dB. The Monte Carlo analysis, along with process, temperature, and voltage corner analyses, confirms the robustness of the design.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project

—

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2025

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

IEEE ACCESS

ISSN

2169-3536

e-ISSN

2169-3536

Volume of the periodical

13

Issue of the periodical within the volume

02 June 2025

Country of publishing house

US - UNITED STATES

Number of pages

11

Pages from-to

98055-98065

UT code for WoS article

001506741800022

EID of the result in the Scopus database

2-s2.0-105007288979