Application of Advanced Operational Amplifiers in Biomedical Signal Systems

With the usage of amplifiers worldwide, many industries are using them to process the signal. With different designs and different types of amplifiers, they contribute to those areas a lot. The same trends happen to medical areas as well. They use it to enhance the signal from their research. The advantages of operational amplifiers (op-amp) of adjustable bandwidth could positively affect the area, especially for its signal process research, involving EEG, ECG, EMG, PCG, and Aps usage. This article will focus on designs of advanced amplifiers, especially op-amp for medical equipment and mainly discuss the drawbacks and advantages that different designs could bring to the equipment. This paper will lead to three main questions: why to use an op-amp, how to design them, and the advantages and disadvantages of different kinds of designs.