0.3-V 36-nW Voltage-Mode First-Order Filter Based on Multiple-Input Operational Transconductance Amplifier

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60162694%3AG43__%2F26%3A00564810" target="_blank" >RIV/60162694:G43__/26:00564810 - isvavai.cz</a>
Alternative codes found
RIV/00216305:26220/26:0198648
Result on the web
<a href="https://ieeexplore.ieee.org/document/11036094" target="_blank" >https://ieeexplore.ieee.org/document/11036094</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1109/ACCESS.2025.3579494" target="_blank" >10.1109/ACCESS.2025.3579494</a>

Result language
angličtina
Original language name
0.3-V 36-nW Voltage-Mode First-Order Filter Based on Multiple-Input Operational Transconductance Amplifier
Original language description
This paper presents an electronically tunable, voltage-mode first-order filter based on multiple-input operational transconductance amplifiers (MI-OTAs). The filter circuit consists of two MI-OTAs and a single capacitor. It is demonstrated that a single topology can realize first-order low-pass, high-pass, and all-pass filters using MI-OTA-based designs. These filter responses are achieved without the need for component matching, input matching, or inverting input signals. The pole frequency of all filter responses can be electronically tuned by adjusting the transconductance of the OTA. The MI-OTA operates at 0.3 V with a rail-to-rail input voltage range, thanks to the use of bulk-driven MOS transistors operating in the subthreshold region and the multiple-input MOS transistor technique. This results in a simple CMOS structure with low supply voltage and reduced power consumption. The circuit was designed and evaluated in Cadence Virtuoso using UMC's 130-nm 1P8M CMOS process. The proposed filter demonstrates improved performance in terms of lower supply voltage and reduced power consumption compared to previous works. It achieves a dynamic range of 52 dB while consuming only 36 nW of power, with a bias current setting of 10 nA.
Czech name
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Czech description
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Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10201 - Computer sciences, information science, bioinformathics (hardware development to be 2.2, social aspect to be 5.8)

Project
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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

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