Ultra-low voltage, power efficient continuoustime filters in 180 nm CMOS technology
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Date
2019
Authors
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Journal ISSN
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Publisher
Institution of Engineering and Technology kvukmirovic@theiet.org
Abstract
The 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.
Description
Keywords
Chebyshev filters, CMOS integrated circuits, Continuous time systems, Energy efficiency, Low power electronics, Active RC filter, Basic building block, Circuit techniques, Continuous-time filters, Energy efficient, Figure of merits, Low power application, Ultra-low-voltage, Passive filters
Citation
IET Circuits, Devices and Systems, 2019, 13, 7, pp. 988-997