Design and Analysis of Notch Depth for T-Notch Filter

In this paper we try to design of a T-Notch filter of 60Hz using op-amp technology. Notch filter to reduce the small interference signal (near about 50-60Hz) is highly industrial demand for biomedical application. In particular the main focus is on how to detect the small signal changes due to power-line interference. With the experimental variation of resistance in T notch filter circuit we try to improve the notch depth. The notch depth characteristics and performance analysis of the filter is the major contribution of this paper.