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- Title
A 0.3‐V, 2.4‐nW, and 100‐Hz fourth‐order LPF for ECG signal processing.
- Authors
Rao G., Hanumantha; P., Sreenivasulu; S., Rekha; Bhat, M. S.
- Abstract
Summary: An ultra‐low voltage, low power bulk‐driven voltage follower (VF) is proposed in this paper. Further, it is exploited to design a fourth‐order low‐pass filter (LPF) for electrocardiogram (ECG) signal processing. The filter is designed in UMC 180‐nm CMOS technology and operates with an ultra‐low supply voltage of 0.3 V. It consumes an extremely low power of 2.4 nW for a cutoff frequency of 100 Hz. Results of post‐layout simulation show that the proposed filter provides a dynamic range (DR) of 51.6 dB even from a 0.3‐V supply voltage. The filter achieves a Figure‐of‐merit (FoM) of 4.7 × 10−15, which is better than many designs listed in the literature.
- Subjects
SIGNAL processing; ELECTROCARDIOGRAPHY; BIOMEDICAL signal processing; VOLTAGE-controlled oscillators
- Publication
International Journal of Circuit Theory & Applications, 2020, Vol 48, Issue 11, p1853
- ISSN
0098-9886
- Publication type
Article
- DOI
10.1002/cta.2839