High-order chebyshev notch filter based on MO-OTA and its application in Biosensor

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dc.contributor.authorSrisamranrungrueang, Siradanai
dc.contributor.authorWongprommoon, Natapong
dc.contributor.authorPrommee, Pipat
dc.date.accessioned2026-08-06T10:32:37Z
dc.date.available2026-08-06T10:32:37Z
dc.date.issued2021-05-19
dc.description.abstractThis paper presents a high-order notch filter based on multiple output OTA (MO-OTA). The signal flow graph (SFG) method is applied as a design procedure based on the RLC prototype. The RLC Chebyshev low-pass filter is used as an original prototype. The network transform is applied to convert the LPF to a notch filter. From the SFG, the denormalized network can be replaced by integrators and differentiators. The current-mode lossy and lossless types of integrator and differentiator are realized by using CMOS MO-OTA and grounded capacitor. A simple and low-complexity structure is achieved and constructed by 9 MO-OTAs and 6 grounded capacitors. The stop-band frequency between 10Hz-1kHz can be electronically tuned by the bias current between 1-100 μA. The low power supply ±0.75V is required which consumes the power 15mW at 100μA bias current. An application in ECG signal with power line interference (PLI) removal is included.
dc.identifier.citationEcti Con 2021 2021 18th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology Smart Electrical System and Technology Proceedings, 696-699, 2021
dc.identifier.doi10.1109/ECTI-CON51831.2021.9454922
dc.identifier.other2-s2.0-85112852267
dc.identifier.urihttps://dspace.kmitl.ac.th/handle/123456789/12042
dc.sourceEcti Con 2021 2021 18th International Conference on Electrical Engineering Electronics Computer Telecommunications and Information Technology Smart Electrical System and Technology Proceedings
dc.subjectChebyshev
dc.subjectECG
dc.subjectNotch filter
dc.subjectOTA
dc.subjectSignal flow graph
dc.subjectTunable
dc.titleHigh-order chebyshev notch filter based on MO-OTA and its application in Biosensor
dc.typeConference Paper

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