27-02-2023: Electronics 4¶

Amplifiers: modeling of port isolation errors

At an early stage of the design process, we use relatively two-port models that describe the functional behavior of the amplifier. However, it is important to know the conditions under which electrical networks can be represented by such two-ports. If such conditions are not met, more eleborate description models are required and deviations from the ideal behavior should be well defined.

Presentation

The presentation “Amplifiers: port isolation errors” shows that the set of performance parameters that describes port isolation in practice, is often incomplete.

Presentation in parts

Amplifiers: port isolation errors (parts)

Video

Amplifiers modeling of port isolation errors (3:37)

Study

Chapter 2.4.1, 2.4.2

Noise in electronic circuits

As all real-world systems, amplifiers add noise to the signal.

Presentation

The presentation “Noise in electronic circuits” briefly introduces noise mechanisms in electronic components and presents models and parameters for characterization of the noise behavior as well as noise analysis techniques.

Presentation in parts

Noise in electronic circuits (parts)

Videos

1. Noise Mechanisms in Electronic Devices (6:11)

2. Drawing Conventions for Noise Sources (2:14)

3. Noise Parameters (5:14)

4. Noisy Two ports (6:52)

5. Amplifier Noise Design (4:07)

6. Source Transformation Techniques (3:01)

7. Influence of impedances in the signal path on noise performance (10:47)

Poster

1. Random signal modeling and noise in electronic circuits

Study

Chapter 19

SLiCAP noise analysis

Presentation

An example of symbolic and numeric noise analysis with SLiCAP will be presented. The source files are available in the zip archive noiseAnalysis.zip.

Videos

EE3C11 lecture 4: SLiCAP noise analysis