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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/00216305:26220/26:0198649

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

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

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

IEEE ACCESS

ISSN

2169-3536

e-ISSN

2169-3536

Svazek periodika

13

Číslo periodika v rámci svazku

02 June 2025

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

98055-98065

Kód UT WoS článku

001506741800022

EID výsledku v databázi Scopus

2-s2.0-105007288979