Evaluation of the advantages of transition to a frequency selective amplifier scheme on the basis of OU

A comparative analysis of the circuits of a frequency-selective amplifier and an active filter according to the Sallen-Key scheme was made, their work was simulated in the TinaTi software package. For an active filter, the values of resistors and capacitors are calculated, providing output characteristics similar to those of the considered transistor amplifier, and the frequency response is plotted.