Lecture (L4-1) Op-Amp Characteristics

Due Feb 20, 2019 by 9:40am
Points None

Question of the Day:

What is an Op-Amp?
What is the linear range of the op-amp?
What is the difference between the op-amp gain (A) and circuit gain (G)?
How is an op-amp used as a switch? (what values can it switch to?)
An op-amp is characterized by three important input/output attributes. What are they?
What is the equivalent circuit model for an op-amp (working in the linear range)?
What is an ideal op amp, and what approximations can we use?

Self-Assessment: ECE1250_Assess4_1.pdf Download ECE1250_Assess4_1.pdf

Introduction: An operational amplifier (op amp) is one of the most widely-used components in electrical engineering. Op amps can be built into circuits to amplify/de-amplify, compare, add, subtract, multiply (that's amplify), and divide (that's deamplify) a voltage.

Reference Material:

Textbook section: Ulaby Chapter 4-1

Op Amp Cookbook.docx Download Op Amp Cookbook.docx

Circuits: Op Amps Page

Application: What you can do With Op-Amps Links to an external site.

Video Lectures:

Introduction to Op Amps: Power Point to take notes on Download Power Point to take notes on

https://youtu.be/VCMQlPUka-E (Links to an external site.)

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Example 4-1 (Non-Inverting Amplifier):

https://youtu.be/npkexpoJLtg (Links to an external site.)

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Cramer's Rule review (to go with Example 4-1) http://www.coolmath.com/algebra/14-determinants-cramers-rule/01-determinants-cramers-rule-2x2-03

Calculation page Download Calculation page

EXTRA EXAMPLES / EXPLANATIONS:

Ideal Op Amp Approximations (from Lee Brinton at SLCC)

L4 1 1 OpAmps Introduction Chap 4 Links to an external site.

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Here is another good video on op amps: http://www.youtube.com/watch?v=nhDq_Gl2yh4&list=PLDEC730F6A8CDE318&index=13&feature=plpp_video (Links to an external site.)
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and an associated online text. Depending on how your PDF reader is set up, you will probably have to download (save) the file in order to read it correctly. https://learn.digilentinc.com/Classroom/RealAnalog/circ1/Text/RealAnalog-Circuits1-Chapter5.pdf Links to an external site.
And another great explanation:

https://www.youtube.com/watch?v=7FYHt5XviKc (Links to an external site.)

(CC Links to an external site.)