A biasing based current mode analog front-end for biomedical applications. (2021)

• Record Type: Journal Article
• Authors: Krishnamoorthy, Raja; Kavitha, E.; Beslin Geo, V.; Radhika, K.S.R.; Bharatiraja, C.
• Is Part Of: Materials today. Volume 45:Part 2(2021)
• Page Start: 3113
• Page End: 3119
• Publication Date: 2021
• Subjects: VLSI -- Counter let transform -- Amplifier -- Biomedical; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.12.204
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Electrocardiograms, Electromyogram, and Electroencephalogram, are very few extensions and low frequencies electronic detection system. An important part of their biomedical detection electronic system is the biopatensive props-device. In this article, analog front-end in a current mode has been proposed to bioptational signal acquisitions. It includes programmable profit-current (PGC) mode amplifier (MA) and 2nd current mode low-pass filter (CM-LPF). Amplifier operated and low-pass filter externally used ELIN circuits. EIN blocks were executed by the use of log-domain circuits. In the proposed circuit, a combination of pull up and pull down transistors which acts as an inverter is used for biasing purpose. The biasing is done in such a way that the transistors switch their region of operation between cutoff region and saturation region in order to perform switching action. The proposed current mode analog front-end consumes less material to implement circuit design.