Function of the analog electronics

The objective of this course is to enable students to acquire the fundamental notions of analog electronics.

A first part is dedicated to linear analog electronics allowing the conditioning and processing of information, especially from sensors.

A second part focuses more precisely on the internal structure of operational amplifiers implemented in the first part, with the study of the internal architecture of amplifier circuits based on bipolar transistors.

• Acquire the skills to study linear circuits based on components or active circuits for a synthetic approach of them, and the use of associated computer tools.
• To know how to choose the models and tools adapted to the studies to be carried out and to apprehend their limits.
• Know the basic circuits of analog electronics.
• Know how to design, analyze and realize simple linear circuits based on active components or active circuits such as AOP.
• To acquire a scientific and rigorous approach to the studies carried out

Master electrokinetics and the associated mathematical tools such as limited developments, Fourier and Laplace transforms and matrix calculation.

Implementation of simple algorithms

Linear electric circuits :

Generalities, Input and output impedances, Quadripoles

Systematic methods for circuit analysis: modified nodal analysis (MNA).

Operational Amplifier:

Ideal model, finite gain model, 1-pole. Input impedance, output impedance, current and offset voltage.

Linear electronic functions based on operational amplifiers: summator, subtractor, integrator. Derivator, amplification.

Performance and limitations of these operational amplifier circuits: stability, gain-bandwidth product, slew rate.

Analog Filtering :

Analog filtering, transfer function synthesis (polynomial filters)

Active filters: Sallen Key, Rauch, universal filters.

Sensors and sensor conditioning

General information on acquisition chains

Active packaging

Conditioning of passive sensors

Instrumentation amplifier

Diode &Transistors

Static and dynamic low frequency characteristics

Amplifier circuits for small low frequency signals (common emitter, common collector, common base, differential pair and current mirror).

The purpose of this part is to understand the structure of a simplified operational amplifier, to justify the low bandwidth of an aop (compensation) and the Slew Rate.

Pushpull in connection with the power amplifier function, application for µC output.