Analogue Circuit Design

The details
Computer Science and Electronic Engineering (School of)
Colchester Campus
Spring Special
Undergraduate: Level 5
Monday 13 January 2020
Friday 26 June 2020
08 May 2019


Requisites for this module



Key module for

BENGH610DA Electronic Engineering

Module description

The module incorporates two major themes: The first is the circuit orientated theme aiming to engender both an intuitive understanding of simple circuit design and functionality.

The second focuses on the more formal analysis and computer simulation techniques using equivalent circuit transistor models where key skills in numeracy and circuit simulation are developed and then used in the design, simulation and construction of oscillator circuits. The module is supported by laboratory-based assignments that investigate small signal amplifiers, and voltage-controlled oscillator design and applications.

Module aims

This module aims to develop an in-depth understanding of analogue systems and circuit techniques from a design process perspective.

Module learning outcomes

On completion of this module, students will be expected to be able to:

1. Derive ac-equivalent models from transistor terminal behaviour as an aid to small-signal analysis and as a design aid for small-signal audio amplifiers and linear oscillators.

2. Understand the design process and system requirements and apply these in the design of single-stage transistor amplifiers, basic operational amplifier circuits, and power supplies.

3. Use CAD tools such as MultiSIM to perform circuit-level simulations.

4. Implement, test and evaluate practical design solutions and communicate the methodology, results and conclusions in both written and oral form.

Module information

Outline Syllabus

Basic Electronic Circuits:

Power Supplies:
Half-wave and full wave rectification
Bridge rectifier
Capacitive smoothing filters
Ripple voltage
Zener regulated power supply
Series and shunt regulators
DC to AC power inverters-very important these days

Transistor Bias Circuits:

Choice of DC operating point
Constant current base bias circuit
Effect of temperature and variation with base bias
Voltage-divider bias-Effect of temperature and variation with voltage-divider bias
Collector feedback bias
Effect of temperature and variation with collector feedback bias
Use of nearest preferred values in the design process
Coping with power supply noise

Low-frequency (Audio) Amplifiers:

Single-Stage Transistor Amplifiers:
Bode plots
Simple small-signal model
Common-emitter amplifier
Effect of source and load resistance
Shunt and series feedback
Common-collector (emitter follower) amplifier
Low-frequency amplifier response
Single-stage bootstrap-bias amplifier

Operational Amplifiers Fundamentals:
Differential single-stage amplifier
Operational Amplifier parameters
Differential gain
Common-mode gain
Common-mode rejection ratio (CMRR)
Negative feedback, closed-loop gain and bandwidth
Non-inverting amplifier
Voltage follower
FET input op amps.
Effects of negative feedback on input and output resistances
DC offsets, bias current and offset voltage compensation
Inverting amplifier (virtual-earth amplifier)
Amplitude and slew rate limiting
Open-loop and closed-loop frequency response
Rise time and bandwidth relationship
Compensation capacitor

Operational Amplifier Circuits:
Simple comparator
Comparator with hysteresis, effect of noise
Flash analogue-to-digital converter (ADC)

Summing amplifier, difference amplifier
Instrumentation amplifier
Integrator and differentiator
Example linear low-pass filter using Sallen and Key Topology

Barkhausen criterion
RC, LC and Wien bridge oscillator configurations
Frequency stability and amplitude stabilization
Crystal Oscillators
Relaxation oscillators (555 timer device)
Voltage-controlled oscillator (VCO) designs and their application in phase locked loops.

Learning and teaching methods

Lectures, Classes and Labs


This module does not appear to have any essential texts. To see non-essential items, please refer to the module's reading list.

Assessment items, weightings and deadlines

Coursework / exam Description Deadline Weighting
Coursework Progress Test - Wk 22 25%
Coursework Assignment 1 Amplifier Design (Hardware lab experiment) 13/03/2020 25%
Coursework Assignment 2 Voltage controlled oscillators and phase locked loop (hardware lab experiment) 24/04/2020 50%
Exam 120 minutes during Summer (Main Period) (Main)

Overall assessment

Coursework Exam
40% 60%


Coursework Exam
40% 60%
Module supervisor and teaching staff
Dr Faiyaz Doctor
School Office, email: csee-schooloffice (non-Essex users should add @essex.ac.uk to create full e-mail address), Telephone 01206 872770



External examiner

Dr Robert John Watson
University of Bath
Senior Lecturer
Available via Moodle
Of 56 hours, 27 (48.2%) hours available to students:
29 hours not recorded due to service coverage or fault;
0 hours not recorded due to opt-out by lecturer(s).


Further information

Disclaimer: The University makes every effort to ensure that this information on its Module Directory is accurate and up-to-date. Exceptionally it can be necessary to make changes, for example to programmes, modules, facilities or fees. Examples of such reasons might include a change of law or regulatory requirements, industrial action, lack of demand, departure of key personnel, change in government policy, or withdrawal/reduction of funding. Changes to modules may for example consist of variations to the content and method of delivery or assessment of modules and other services, to discontinue modules and other services and to merge or combine modules. The University will endeavour to keep such changes to a minimum, and will also keep students informed appropriately by updating our programme specifications and module directory.

The full Procedures, Rules and Regulations of the University governing how it operates are set out in the Charter, Statutes and Ordinances and in the University Regulations, Policy and Procedures.