Practice Identification (6.4.2) - DIFFERENTIAL AMPLIFIER AND BASIC OP-AMP GAIN STAGES
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Identification

Practice - Identification

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Practice Questions

Test your understanding with targeted questions

Question 1 Easy

Define a BJT differential amplifier.

💡 Hint: Think about how it deals with unwanted signals.

Question 2 Easy

What is CMRR?

💡 Hint: It measures how well the amplifier can ignore common signals.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What is the primary function of a differential amplifier?

A) To amplify a single input signal.
B) To generate signals.
C) To amplify the difference between two signals.

💡 Hint: Focus on what it does with two different input voltages.

Question 2

True or False: A higher CMRR indicates a better ability to reject common-mode signals.

True
False

💡 Hint: Think about what it means to reject unwanted signals.

1 more question available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

Design a BJT differential amplifier with specified resistor values and input conditions. Explain the reasoning behind your choices.

💡 Hint: Think about what resistor values would stabilize your amplifier’s operation.

Challenge 2 Hard

You have an Op-Amp with a gain of 15 and a typical bandwidth of 200 kHz. Calculate the gain-bandwidth product and predict the new bandwidth if the gain were lowered to 5.

💡 Hint: Remember GBW is constant—both gain and bandwidth are inversely related.

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