Recent Lessons

Show all results for ""

Feature Overview

Ace your exams with our all-in-one platform for creating and sharing quizzes and tests.

Quizzes

Create quizzes and tests automatically from your content using AI.

Flashcards

Automatically turn your notes into digital flashcards.

Share, Export & Embed

Share with classmates or export to Excel and your learning management system.

Stats & Reporting

Auto-grading quizzes and tests with detailed stats and reports.

Mobile Apps

The smarter way to study – wherever you are.

Pricing

Search...

10 Questions

2 Views

Operational Amplifiers Basics

Choose a study mode

Play Quiz

Study Flashcards

Spaced Repetition

Chat to lesson

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the ideal input impedance of an operational amplifier?

100 ohms

ideally infinite (correct)

10 kohm

1 kohm

What is the purpose of an inverting amplifier configuration?

To decrease the output impedance to zero

To amplify the input signal

To invert the input signal (correct)

To increase the voltage gain to infinity

What is the voltage gain of a voltage follower amplifier?

Greater than 100000

Less than 1

Ideally infinite

Equal to 1 (correct)

What is the typical output resistance of an operational amplifier?

750 ohms Signup and view all the answers

Which operational amplifier configuration is used for integration?

Integrating amplifier Signup and view all the answers

What is the output of the op-amp comparator circuit when V1N is less than VREF?

Low and at the negative supply voltage, -Vee Signup and view all the answers

What happens to the output voltage of the op-amp comparator circuit when V1N is increased to a value greater than VREF?

It rapidly switches HIGH towards the positive supply voltage, +Vee Signup and view all the answers

What is the function of the op-amp comparator circuit?

It acts as a threshold detector Signup and view all the answers

What is the output of the op-amp comparator circuit when V1N is equal to VREF?

It is undefined or at a voltage level between +Vee and -Vee Signup and view all the answers

What is the effect of reducing the input voltage, V1N, to a value less than VREF?

The output voltage switches LOW towards the negative supply voltage, -Vee Signup and view all the answers