( english version )

Electronic measurements instrumentation ( 5 CFU ) Tel. 0521.905823 - Fax. 0521 905822 E-mail. carlo.morandi@unipr.it Home page. http://ee.unipr.it/~morandi/

Finalità

The course deals with the design of the analogue signal conditioning chain in electronic instruments. Then several techniques for the improvement of the S/N ratio in extreme conditions are discussed.

Programma

The main functional blocks in a data acquisition and processing system.

Linear amplifiers.

A deeper insight of operational amplifiers. OTA and trans-impedance amplifiers. Electrometric amplifiers, instrumentation amplifiers, isolation amplifiers.

Non-linear processing.

Log-antilog amplifiers. The Gilbert cell. Analogue multipliers and their application in true rms measurements.

Voltage and current references

Zener, Vbe and band-gap references. Implementations in bipolar and CMOS technologies.

Sample and hold circuits.

D/A converters.

Resistive weighting: binary weighting, block-binary weighting, direct and inverse R-2R networks.

Capacitive weighting: binary weighting, serial conversion.

A/D converters.

Over-sampling converters, delta-sigma converters, high speed converters.

PLL

Phase detection, VCO, linear PLL analysis in the phase domain. Type and order of the PLL. Steady state errors and tracking characteristics.

Linear, time-varying filters for S/N improvement.

Introduction to linear time varying systems. Modulator, gated integrator, boxcar integrator and S/H, lock-in amplifier.

Linear amplifiers.

A deeper insight of operational amplifiers. OTA and trans-impedance amplifiers. Electrometric amplifiers, instrumentation amplifiers, isolation amplifiers.

Non-linear processing.

Log-antilog amplifiers. The Gilbert cell. Analogue multipliers and their application in true rms measurements.

Voltage and current references

Zener, Vbe and band-gap references. Implementations in bipolar and CMOS technologies.

Sample and hold circuits.

D/A converters.

Resistive weighting: binary weighting, block-binary weighting, direct and inverse R-2R networks.

Capacitive weighting: binary weighting, serial conversion.

A/D converters.

Over-sampling converters, delta-sigma converters, high speed converters.

PLL

Phase detection, VCO, linear PLL analysis in the phase domain. Type and order of the PLL. Steady state errors and tracking characteristics.

Linear, time-varying filters for S/N improvement.

Introduction to linear time varying systems. Modulator, gated integrator, boxcar integrator and S/H, lock-in amplifier.

Attività d'esercitazione

Simple exercises are solved during the lectures. Homework.

Modalità d'esame

Oral discussion, tests during the course

Propedeuticità

Electronics AB, Electronics C

Testi consigliati

Lecture notes.