20401807 - EXPERIMENT IN PHYSICS III

The course deals with the basic concepts and techniques of electronics. The primary objective of the course is to deepen the understanding of the electronic devices that are part of the technologies that surround us and the role they play in the measurements of physical quantities. Particular attention will be paid to increasing knowledge for: identifying the applications and potential of electronics in physics laboratories; recognize the different electronic components used for the different electronic functions; be able to analyze simple analog and digital electronic circuits; be able to manage the basic instrumentation present in an electronics laboratory. To achieve the objectives, the course includes lectures, numerical exercises, use of circuit simulators, laboratory exercises.
teacher profile | teaching materials

Programme

• Double RC, CR, and band-pass. • Semiconductors, diode, operating point, simple circuits with diodes. • BJT transistor: working principle, relationship between currents. Common-emitter connection: calculation of amplification, load lines, and operating point. Transistor biasing. Static model. Hybrid h and π model. Common-emitter amplifier with capacitors: voltage and current amplification, input and output impedances. Emitter follower (CE) configuration. BJT coupling capacitors and low-frequency region. Internal capacitances of the transistor and high-frequency behavior. Variation of h_fe with frequency. Miller theorem. Overview of JFET and MOSFET and main conceptual differences. •Introduction to operational amplifiers. Model of the ideal op-amp. Amplifier in inverting and non-inverting configurations. Compensation, gain-bandwidth product. Slew rate and its measurement. Integrator and differentiator with op-amps. Differential amplifier, gains and CMRR, comparators, summing amplifiers. Active low-pass filters with 1 and 2 stages. Charge Sensitive Amplifiers

• Noise: Thermal noise, Shot noise, and 1/f noise.

• Converters: DAC, ADC.

Core Documentation

Slide del docente su Moodle

L’arte dell’elettronica (Horowitz, Hill, Zanichelli 2018)


Attendance

Attendance at classroom lessons is strongly recommended, although not mandatory; attendance at laboratory activities, on the other hand, is mandatory.

Type of evaluation

Writing a report analyzing the circuit and commenting on the related simulation with a comparison to the measurements of the real circuit. Oral test to discuss the report and the various steps of the lab work, also referring to the theory. No written or practical test is expected.