0.3-V Nanopower Biopotential Low-Pass Filter
ABCD PBi
0.3-V Nanopower Biopotential Low-Pass Filter
Autor:
Kulej, Tomasz
;
Khateb, Fabian
;
Kumngern, Montree
Assuntos:
Biopotential filter
;
bulk-driven
;
CMOS
;
Cutoff frequency
;
Electric potential
;
Electrocardiography
;
Figure of merit
;
Gain
;
Low pass filters
;
low power
;
low voltage
;
MOSFET
;
Power consumption
;
Threshold voltage
;
Voltage
É parte de:
IEEE access, 2020, Vol.8, p.119586-119593
Descrição:
This paper presents a compact power-efficient CMOS fourth-order low-pass filter suitable for electrocardiogram (ECG) acquisition systems. The CMOS structure of the proposed filter utilize the bulk-driven technique and operates in subthreshold region to achieve extremely low-voltage supply (0.3V) and nanopower consumption (0.676 nW) for cut-off frequency of 100 Hz. The filter was designed and simulated using <inline-formula> <tex-math notation="LaTeX">0.18~\mu \text{m} </tex-math></inline-formula> CMOS TSMC technology. The total input referred noise of the filter is <inline-formula> <tex-math notation="LaTeX">87~\mu </tex-math></inline-formula>Vrms and the dynamic range is 58.1 dB. The filter offers the best figure of merit of <inline-formula> <tex-math notation="LaTeX">2.91\times 10^{-14} </tex-math></inline-formula> J, the lowest power consumption and voltage supply, compared with the previous state-of-the-art nanowatt filter designs.
Editor:
Piscataway: IEEE
Idioma:
Inglês