Low-Voltage Mixed-Mode Analog Filter Using Multiple-Input Multiple-Output Operational Transconductance Amplifiers

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dc.contributor.authorKumngern, Montree
dc.contributor.authorKhateb, Fabian
dc.contributor.authorKulej, Tomasz
dc.date.accessioned2026-08-06T10:44:48Z
dc.date.available2026-08-06T10:44:48Z
dc.date.issued2024-01-01
dc.description.abstractThis paper presents a novel mixed-mode, low-power, 1 V analog filter that uses multiple-input multiple-output operational transconductance amplifiers (MIMO-OTAs). This filter uses four OTAs, two grounded capacitors, and one grounded resistor and offers four modes, namely voltage, current, transconductance, and transimpedance modes. Each mode of operation provides non-inverting and inverting low-pass, high-pass, band-pass, band-stop, and all-pass filter transfer functions (10 transfer functions). Thus, in four operating modes, the designed filter offers 40 transfer functions, which is the full capability of a mixed universal filter. The natural frequency of all filter functions can be electronically controlled. To obtain the multi-input OTA, the multiple-input bulk-driven MOS transistor (MIBD-MOST) technique is used. This technique can reduce the number of MOS input differential pairs and the supply voltage. The active mixed-mode filter was simulated using a CMOS TSMC 0.18μ m process in the Cadence Virtuoso ADE Suite. The simulation results confirm the performance of the proposed filter.
dc.identifier.citationIEEE Access, 12, 51073-51085, 2024
dc.identifier.doi10.1109/ACCESS.2024.3385498
dc.identifier.issn21693536
dc.identifier.other2-s2.0-85189785981
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/15302
dc.sourceIEEE Access
dc.subjectActive filter
dc.subjectanalog circuit
dc.subjectlow-power circuit
dc.subjectmixed-mode filter
dc.subjectoperational transconductance amplifier
dc.titleLow-Voltage Mixed-Mode Analog Filter Using Multiple-Input Multiple-Output Operational Transconductance Amplifiers
dc.typeArticle

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