I. Introduction
Biosignals represent a key role in diagnostics and treatment in many fields of medicine. They represent a measurement of human body function, therefore helping clinicians with health monitoring and treatment plans for patients. These signals are generally low in amplitude, meaning that special care needs to be taken in order to design an amplifying circuit. Additionally, circuit designers take care of designing adequate filters to extract the information from the measured signals. The acquisition, processing and analysis of biosignals require the multidisciplinary design approach, connecting biology, physics, medicine and engineering.