OKANAGAN UNIVERSITY COLLEGE
COURSE OUTLINE
ELECTRONIC ENGINEERING TECHNOLOGY 256
ANALOG AND DIGITAL SIGNAL PROCESSING
Duration:
Lecture:
Laboratory:
Total Time:
16 weeks
3 hours/week
2.5 hours/week
88 hours
DESCRIPTION:
Advanced applications of operational amplifiers and special integrated circuits are covered with an
emphasis on high performance analog signal processing leading to data acquisition and digital signal
processing by computer.
PREREQUISITE:
ElEn 146
MAJOR TOPICS:
Lecture
Hours
1. Properties of four classes of negative feedback
8
5
2. Review of Op Amps and applications
3
2.5
3. Op Amp DC Performance:
-Bias Currents
-Offset voltage
-Drift
3
2.5
4. Op Amp AC Performance:
-Bandwidth
-Slew Rate
-Noise
-Stability
4
2.5
5. Specialized OP AMPs
- Norton (CDA)
- Transconductance (OTA)
-Current Feedback Op Amps
2
2.5
6. Data Acquisition Systems: Hardware and Software
4
5
7. Instrumentation Amplifiers
2
2.5
3
2.5
9. D/A Converters
3
2.5
10. A/D Converters
4
2.5
11. The Discrete Fourier Transform
3
2.5
12. Digital Filtering
3
2.5
6
48
5
40
8. Filters
-Active
-Switched capacitor
13. Non-instructional Time (holidays, exams)
Lab
Hours
GENERAL OBJECTIVES:
After completion of this course the student will be able to:
1.
2.
3.
4.
5.
6.
7.
8.
9.
Recognize modern analog microelectronic circuits such as operational and differential amplifiers
and special function circuits and discuss their fundamental operation as well as major specifications
and limitations.
Use manufacturer's catalogues efficiently to obtain detailed specifications on relevant devices.
Measure the ac and dc characteristics of typical analog devices.
Recall and use simplified models and relationships to analyze functional analog circuits.
Test and troubleshoot complex analog circuits such as instrumentation amplifiers, waveform
generators, active filters, timers and various signal conditioning circuits used in instrumentation and
control.
Design analog circuits and verify their operation by means of the SPICE simulation program.
Design data acquisition systems.
Apply the discrete and fast Fourier transforms and state their limitations.
Design analog and digital filters and state their advantages and disadvantages
TEXT: “Electronic Devices”, Floyd, Publisher: Prentice Hall
EVALUATION:
Assignments
Term Tests
10%
30%
Laboratory Projects
Final Examination
20%
40%
Letter grades will be assigned as follows:
Percent Letter Grade
Percent Letter Grade
90 - 100
85 - 89
80 - 84
76 - 79
72 - 75
68 - 71
64 - 67
60 - 63
55 - 59
50 - 54
C+
C
CD
0 - 49
F Failure
A+
A
AB+
B
B-
Detailed Objectives and Activities
1. Properties of four classes of negative feedback
a)
b)
c)
d)
e)
Draw the 3 element block diagram for a negative feedback (NFB) amplifier.
Derive the transfer function for the 3 element NFB amplifier
State the effect non-infinite open loop gain has on closed loop gain.
Identify the four different types of negative feedback used with amplifiers.
State the amplifier type, gain stabilized, feedback factor , gain value, and limits of input and
output impedance.
f) State applications for each NFB type.
Lab Projects:
Voltage Series, Voltage Shunt Feedback
Current Series, Current Shunt Feedback
Resources:
2. Review of Op Amps and applications
a) State 5 properties of an ideal op amp.
b) Compare the specs for a typical op amp to the ideal specs.
c) Derive the transfer functions for the following op amp circuits:
i) Inverting amplifier
ii) Non inverting amplifier
iii) Inverting Summer
iv) Difference amplifier
v) Integrator
vi) Differentiator
Lab Project:
Difference Amps, Integrators, Differentiators
Resources:
3. Op Amp DC Performance
a) Calculate the effect input offset voltage and current has on the output of an op amp.
b) Compensate for input offset voltage and current.
c) Compare drift specifications for offset currents and voltages.
Lab Project:
Practical Op Amp Properties
Resources:
4. Op Amp AC Performance
a) Define gain bandwidth product.
b) Calculate bandwidth for closed loop gain amplifiers.
c) Calculate the maximum signal frequency that can be amplified without distortion at full power
based on the amplifier’s slew rate (ie the full power bw).
d) State the factors that contribute to noise at the output of an amplifier and what can be done to
minimize the noise contribution.
e) State why frequency compensation may be required to provide amplifier stability.
f) Calculate gain and phase margins.
Lab Project:
Practical Op Amp Properties (cont’d)
Resources:
5. Specialized OP AMPs
a) Correctly bias and apply the following amplifiers:
- Norton (CDA)
- Transconductance (OTA)
- Current Feedback
eg LM3900
eg LM3080
eg LM6181
Lab Project:
Resources:
6. Data Acquisition Systems: Hardware and Software
a) State the functions of a DAQ card.
b) Control a DAQ card using LabVIEW.
Lab Project:
LabVIEW, DAQ Introduction.
Resources:
7. Instrumentation Amplifiers
a) Analyze the operation and properties of the classical 3 op amp instrumentation amplifier.
b) Compare specs for typical instrumentation amps to regular op amps.
Lab Project:
Strain Gauge Instrumentation
Resources:
8. Filters
a) Design high order Low pass and High pass filters using op amps.
b) Apply switched capacitor filters and state their advantages and disadvantages.
Lab Project:
Active Filters
Resources:
9. D/A converters
a) State how R/2R and binary weighted resistive ladder D/A converters operate.
b) State the advantages and properties of IC D/A converters
Lab Project:
Assignments:
10. A/D converters
a) State the theory of operation and properties of Flash, Successive Approximation and Dual
Slope Integrating A/D converters.
Lab Project:
Demo: Dual Slope A/D Conversion in a DMM
Resources:
11. The Discrete Fourier Transform
a) Analyze the Continuous Fourier Transform (CFT) as template matching.
b) Apply the Discrete Fourier Transform DFT) to sampled data.
c) Develop the Fast Fourier Transform (FFT) from the CFT.
Lab Project:
Fast Fourier Transform (Excel)
Fast Fourier Transform (LabVIEW)
Resources:
12. Digital Filtering
a) Understand that multiplication in one domain is equivalent to convolution in the other domain.
b) State examples of convolution in both domains.
c) Design and apply Finite Impulse Response (FIR) and Infinite Impulse Response (IIR) filters.
Lab Project:
Resources:
Digital Filtering by Convolution (Excel)
Digital Filtering (LabVIEW)