ANALOG DESIGN

Teachers: 
Credits: 
9
Site: 
PARMA
Year of erogation: 
2021/2022
Unit Coordinator: 
Disciplinary Sector: 
Electronics
Semester: 
Second semester
Year of study: 
1
Language of instruction: 

italian

Learning outcomes of the course unit

Knowledge:
the main goal of the course is to provide the students the knowledge of both theoretical and practical aspects required to design an analog integrated circuit in CMOS technology. In particular:
-theory: advanced analog electronics and architectures of analog circuits in CMOS
-practical: usage of EDA-CAD tools, design techniques and guidelines for analog circuits

Provided skills:
At the end of the course the student is able to:
-find out the most appropriate architecture of the analog block to be designed
-size (W/L,L,R,C, etc.) the device of an analog circuits from the spec.s table
-plan and implement a verification strategy for the designed circuit with advanced EDA-CAD tools

In particular in the part of the course dedicated to the design-lab. each student is required to implement
the theory learned in the oral lessons in the design of analog circuits (i.e. from a single-transistor amplifier to a band-gap voltage reference).

Communication skills:
in the lab. activity the student will improve its ability to:
-write a brief report of a design
-present a project with the related design choices and issues and the achieved simulation results

Soft skills
-developing a project working in a group of 2-3 units.

Prerequisites

Electronic devices (MOS transistor)
Basic analog electronics (the concept of circuit linearization, single-transistor amplifiers, differential amplifier, black-box operational amplifier)
Noise in electronic devices (resistor and MOS transistor)

Course contents summary

THEORY (42 hours):
1 CMOS technology: integrated passive devices and non-idealities (4 hours)
2 MOS transistor for analog circuits (2 hours)
3 High-precision current mirrors (2 hours)
4 Integrated CMOS amplifiers (14 hours)
4.1 single-transistors amplifiers
4.2 Operational Amplifiers
4.3 Differential amplifiers
5 Analog design technique based on gm/Id and inversion factor (2 hours)
6 Noise in CMOS amplifiers: low-noise design guidelines (3 hours)
7 Output stages for CMOS opamps (2 hours)
8 Switched-capacitor circuits: theory, architectures and design techniques. (4 hours)
9 Voltage and current references (4 hours)
10 Low drop-out regulators (LDO) (2 hours)

11 Opamp simulation techniques

LABORATORY (21 hours)

1. CAD for electronic design (EDA-CAD): Cadence Design Framework
2. Design of analog cells in CMOS technology
3. Layout of analog integrated circuits: basic theory and example

Course contents

THEORY:
1 CMOS technology: integrated passive devices and non-idealities
2 MOS transistor for analog circuits
3 High-precision current mirrors
4 Integrated CMOS amplifiers
4.1 single-transistors amplifiers
4.2 Operational Amplifiers
4.3 Differential amplifiers
5 Analog design technique based on gm/Id and inversion factor
6 Noise in CMOS amplifiers: low-noise design guidelines
7 Output stages for CMOS opamps
8 Switched-capacitor circuits: theory, architectures and design techniques.
9 Voltage and current references
10 Low dropout regulators (LDO)

11 Single-ended opamp: simulation techniques

LABORATORY

1. CAD for electronic design (EDA-CAD): Cadence Design Framework
2. Design of analog cells in CMOS technology
3. Layout of analog integrated circuits: basic theory and example

Recommended readings

B. Razavi, ``Design of Analog CMOS Integrated Circuits'', Mc Graw Hill
P. E. Allen, D. R. Holdberg , "CMOS Analog Circuit Design", 2nd edition, Oxford University Press
K. S. Kundert, “The Designer's Guide to Spice and Spectre”, Kluwer Academic Publ.

Slides available at the www pages of the course (http://elly.dii.unipr.it)

Teaching methods

The course is based on:
-oral lessons, providing advanced knowledge in the field of analog integrated circuits in CMOS technologies.
-analog design laboratory

The design lab activity is based on:
-training for the usage of the advanced EDA-CAD tool (Cadence Design Framework) to be used for the design projects in the course
-Projects of analog circuits presented and analysed in the oral lessons. Teacher is available for assistance.

The projects activity is mandatory to access to the final exam.

Assessment methods and criteria

The final exam is oral and is focused on:
-theory (CMOS technology for I.C. analog design, analog I.C. design in CMOS, simulators for analog circuits and simulation techniques. The impact of this part on the final rank is about 65%.
-presentation of the reports on the design projects (all or a few of) carried out in the lab. activity. The impact of this part on the final rank is about 35%.
Students must obtain a minimum rank (18/30) in both parts to pass the exam.

Eeach student has to upload the report of the assigned projects (pdf format) within the communicated deadline.

Participation to the lab. activity is mandatory for getting access to the exam (minimum 60% of the hours scheduled for the lab.).

Other informations

WWW pages of the course at the http://elly.dii.unipr.it portal
-slides
-projects guidelines
-teacher-to-student communications