Rekha, S.Vasantha, V.M.Laxminidhi, T.2026-02-052019IET Circuits, Devices and Systems, 2019, 13, 7, pp. 988-9971751858Xhttps://doi.org/10.1049/iet-cds.2018.5485https://idr.nitk.ac.in/handle/123456789/24348The authors propose circuit techniques to implement integrated continuous-time filters for low voltage and low power applications. A fourth order Gm-C filter and a fifth order active-RC Chebyshev filter are used as test vehicles to validate the ideas. Basic building blocks are bulk driven transconductors. Gm-C filter and active-RC filter offer bandwidth of 1 MHz and 750 kHz, respectively while exhibiting a good figure of merit thus ensuring that the designs are energy efficient. Both the filters, fabricated on the same chip in 180 nm CMOS technology, operate on 0.5 V power supply. They offer a dynamic range of 45 and 46.6 dB, respectively. © The Institution of Engineering and Technology 2019.Chebyshev filtersCMOS integrated circuitsContinuous time systemsEnergy efficiencyLow power electronicsActive RC filterBasic building blockCircuit techniquesContinuous-time filtersEnergy efficientFigure of meritsLow power applicationUltra-low-voltagePassive filters