Title :
A fully-integrated R-MOSFET-C filter for biomedical applications
Author :
Li, Yan ; Zhang, Yuan-Ting
Author_Institution :
Key Lab. of Health Inf., Shenzhen, China
Abstract :
This paper presents a fully-integrated low-pass R-MOSFET-C filter with a tunable cutoff frequency basing on a typical topology of the active RC filter. A MOSFET is employed in the proposed filter to replace the resistor in the original topology to achieve the tunable and ultra-low cutoff frequency, which is suitable for biomedical applications. The filter is implemented in UMC 0.13um CMOS technology with a 1.2V supply voltage. The simulation results show that the cutoff frequency ranges from 0.2Hz to 292.8Hz as the gate voltage of the MOSFET is tuned from 0.6V to 0.84V.
Keywords :
CMOS analogue integrated circuits; MOSFET; RC circuits; active filters; biomedical electronics; low-pass filters; CMOS technology; active RC filter topology; biomedical applications; frequency 0.2 Hz to 292.8 Hz; fully-integrated low-pass R-MOSFET-C filter; size 0.13 mum; tunable cutoff frequency; voltage 0.6 V to 0.84 V; voltage 1.2 V; CMOS integrated circuits; Cutoff frequency;
Conference_Titel :
Biomedical and Health Informatics (BHI), 2012 IEEE-EMBS International Conference on
Conference_Location :
Hong Kong
Print_ISBN :
978-1-4577-2176-2
Electronic_ISBN :
978-1-4577-2175-5
DOI :
10.1109/BHI.2012.6211709
