4.6 Article

0.5 V Current-Mode Low-Pass Filter Based on Voltage Second Generation Current Conveyor for Bio-Sensor Applications

期刊

IEEE ACCESS
卷 10, 期 -, 页码 12201-12207

出版社

IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/ACCESS.2022.3146328

关键词

Voltage second generation current conveyor; third-order low-pass filter; current-mode filter; low-voltage low-power; analog circuit

资金

  1. School of Engineering, King Mongkut's Institute of Technology Ladkrabang [2565-02-01-005]

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This paper presents a low-voltage low-power current-mode third-order low-pass filter based on voltage second generation current conveyor (VCII), which has a wide input voltage range and nano-power consumption. The filter can operate as both current- and transimpedance-mode filters.
This paper presents a low-voltage low-power current-mode third-order low-pass filter (LPF) based on voltage second generation current conveyor (VCII). The VCII utilizes the bulk-driven MOS transistor technique to achieve a wide input voltage range at low supply voltage of 0.5 V. Also, the VCII operates in the subthreshold region to achieve nano-power consumption of 390 nW. A third-order low-pass filter that is presented as an application of the VCII can operate as both current- and transimpedance-mode filters. The filter consumes 2.73 mu W and the total harmonic distortion (THD) is below 1 % for sine-wave input signal below 350 nA(pp) @ 10 Hz. The post-layout simulation results based on TSMC 0.18 mu m CMOS process are presented and confirms the futures of the filter.

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