ABSTRACT
The operational amplifier is one of the most versatile electronic circuits. It can be used to perform the basic mathematical operations: addition, subtraction, multiplication, and division. It can also be used to do integration and differentiation. Several electronic circuits use an op amp as an integral element; some of these circuits are amplifiers, filters, and oscillators. The chapter suggests that the voltage gains of inverting amplifiers, non-inverting amplifiers and weighted summers will be measured with the Analog Discovery board. It discusses an integrators, differentiators, and active filters with worked examples. Electronic filter circuits are circuits that can be used to attenuate particular bands of frequency and also pass other bands of frequency. The chapter also discusses the following types of filters: lowpass, bandpass, highpass, and band-reject. Lowpass filters pass low frequencies and attenuate high frequencies. Bandpass filters pass a band of frequencies and attenuate other bands.
