Please use this identifier to cite or link to this item: https://idr.l1.nitk.ac.in/jspui/handle/123456789/13587
Title: Widely tunable low-pass gm - C filter for biomedical applications
Authors: Krishna, J.R.M.
Laxminidhi, T.
Issue Date: 2019
Citation: IET Circuits, Devices and Systems, 2019, Vol.13, 2, pp.239-244
Abstract: This study presents a fourth-order, low-pass Butterworth transconductor�capacitor gm ? C filter with tunable bandwidth for biomedical signal processing front-ends. An architecture has been proposed for realising very low transconductance values with tunability. This transconductor architecture makes it possible to realise a fully differential filter without the need for explicit common-mode feedback circuit. The filter has two tuning schemes, a resistor-based tuning (Rtuning) and a switched transconductor-based tuning (D-tuning). With R-tuning, the bandwidth is adjustable between 1 and 70 Hz and with D-tuning, the tuning range is 30 mHz�100 Hz. The filter has been designed in united microelectronics corporation (UMC) 0.18 �m complementary metal�oxide�semiconductor process. In terms of figure-of-merit, the proposed filter is found to be on par with the filters reported in the literature. � The Institution of Engineering and Technology 2018
URI: 10.1049/iet-cds.2018.5002
http://idr.nitk.ac.in/jspui/handle/123456789/13587
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