Class Electronics II

With this curricular unit, students are expected to acquire advanced knowledge of analysis and synthesis, of electronics. Theoretical lecture develops in two phases. In the first, advanced knowledge on the frequency behavior of various analog circuits and concepts of compensation and stability, as well as the development of electronic circuit analysis capability in both time and frequency are given. In the second, advanced knowledge on specification, design and simulation of passive and active analog filters is conferred.

1 MOSFET - Symbology. Operating areas and characteristic curves. DC analysis. Models for small signal and AC analysis - voltage, current and input and output impedance. Comparison between different configurations.

2 FREQUENCY RESPONSE OF AMPLIFIERS - High-frequency models for BJT and MOSFET. Response at low and high frequencies. Gain function. Approximation of the dominant pole. Method of short circuit and open circuit time constants. Miller's Theorem.

3 MULTI-STAGE AMPLIFIERS - Cascode and Cascode amplifiers. Active loads. Differential pair. Analysis of differential amplifiers.

4 FEEDBACK - Negative feedback amplifiers. Stability and frequency response of amplifiers. Nyquist criterion. Frequency compensation.

5 ANALOG FILTERS - Specification and design of passive filters (Chebishev and Butterworth) and active (biquadratic, Sallen & Key, etc ...). Simulation and implementation of filters.

To support the theoretical component, some practical classes will be carried out using hardware (breadboard with electronic components), as well as the LTSpice software in order to visualize all the information of a given assembly.

• Sedra, Adel S., Smith, K. C. Microelectronic Circuits, Sixth Edition, Oxford University Press, 2009