Lecture (L4-1) Op-Amp Characteristics

Due Jun 28, 2016 by 9:40am
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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: ECE1250F14_Assess4_1.pdf Download ECE1250F14_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: Chapter 4-1

Op Amp Cookbook.docx Download Op Amp Cookbook.docx

Video Lectures:

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

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

Example 4-1 (Non-Inverting Amplifier):

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

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)

http://youtu.be/MElQ1OALRGY

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.

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. Click here Links to an external site.
And another great explanation:

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