Noise in Electronics

This lecture covers the basics of noise in electronics, including random fluctuations affecting signals, origins of noise in electronic components, deterministic and random signals, average power and root mean square value of signals, power spectral density, and noise sources. It also discusses the concept of correlated and uncorrelated noise sources, power totalization, and amplitude distribution law. The lecture concludes with examples illustrating noise contributions in different configurations and calculating noise in an operational amplifier. The instructor emphasizes the importance of understanding noise characteristics in electronic systems.