The University of Southampton

ELEC3208 Analogue and Mixed Signal Electronics

Module Overview

To cover in some depth those areas of circuitry likely to be used between an analogue signal source and a digital signal processing system, making maximum use of available integrated circuits. This fits in with our overall programme of providing a broad based electronics engineering course, with this module covering the main aspects of measuring outputs from a variety of sensors, designing interface circuits and amplifiers, filtering, and data conversion. The course will also cover important topics such as clock generation, noise management, power supply design, as well as practical issues such as packaging, EMC and PCB design. It is assumed that the students at least understand the basics of opamp circuits, and basic analogue to digital conversion principles as for example covered in part 1 ELEC1207 and part 2 ELEC2216 Advanced Electronic Systems.

Aims and Objectives

Module Aims

The module aims to cover come topics of circuitry, especially those most likely to be used between an analogue signal source and a digital signal processing system, making maximum use of available integrated circuits.

Learning Outcomes

Knowledge and Understanding

Having successfully completed this module, you will be able to demonstrate knowledge and understanding of:

  • Understand the various techniques which can be used for signal conditioning, including filter design
  • Understand the sources of noise in electronic circuits, and the limitations they impose
  • Understand the various techniques used for analogue to digital conversion and their relative merits
Subject Specific Intellectual and Research Skills

Having successfully completed this module you will be able to:

  • Design Interface and Amplifier circuits


Signal conditioning using op amps and discrete devices - Review of available op amp specifications - Interface requirements for various signal sources (voltage, current, charge) Analogue filters - Filter types, filter implementation – passive, active, IIR FIR - Filter approximations, max flat amplitude, ripple, transmission zeros, group delay - Butterworth, Chebyshev, Bessel, Elliptic - Filter transformations, normalised filter design methods - Passive filter implementation, terminated filters - Active filter types, gyrator, single op-amp S-K, Rausch - State-variable Tow-Thomas Biquad circuit, derivation - Biquad tuning, LP/BP/BS/AP/Equaliser variants - Biquad Q tuning and use as a sine wave oscillator - Practical implementation issues, dynamic range, component sensitivity, adaptive tuning Introduction to phase locked loops - Basic operation of PLL, linear phase domain model - Oscillators and basic phase detectors - Tracking filter and FM demodulator - Advanced phase detectors - Clock and data recovery Analogue to digital conversion ADC specs, linearity, resolution, linearity, bandwidth (revision) - Fundamentals of noise in digital and analogue systems - Sample and Hold Circuits, track and hold - Quantising noise, anti-aliasing - More ADC types, flash, dual slope Transmission lines for HF signals - Basic theory, coax, parallel wire, stripline - Characteristic impedance, termination - Pulse behaviour with mismatch - Frequency dependent characteristics - Applications issues in data comms and RF, losses, intersymbol interference, SWR Digital to Analogue Conversion - R-2R Digital to Analogue Converters - PWM Signal Generation - Applications of digital to analogue converters Low noise amplifiers - Fundamentals - Physical noise models, passive and active devices - Input referred noise model - Noise in simple amplifiers and opamps - Discrete and op-amp specs - Practical low noise input circuitry Power Supplies and Power Amplifiers - Linear Regulators - Buck Converters - Boost Converters - Power Supply Stability - Power Amplifiers - Class A/AB/B/D Amplifiers - Applications (Audio and Power) - Driver Circuits Power Conversion - AC/DC Rectification - Inverter Design Practical Aspects - EMC - PCB Design - Screening - Thermal Design Aspects

Learning and Teaching

Completion of assessment task6
Follow-up work18
Wider reading or practice50
Preparation for scheduled sessions18
Total study time150

Resources & Reading list

Peter Wilson (11). Circuit Designer's Companion. 

Sedra A S & Smith K C (1991). Microelectronic Circuits. 



MethodPercentage contribution
Design 10%
Exam  (2 hours) 90%


MethodPercentage contribution
Exam 100%

Repeat Information

Repeat type: Internal & External

Linked modules

Pre-requisite: ELEC2216 Advanced Electronic Systems 2016-17

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