76.1.3 - Signal Feeding and Output Analysis
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Practice Questions
Test your understanding with targeted questions
What role does the tail resistor play in a differential amplifier?
💡 Hint: Consider how biasing affects transistor operation.
What happens to the output signal if the input V_in1 is greater than V_in2?
💡 Hint: Think about the output phase in relation to input.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What is the role of the tail resistor in a differential amplifier?
💡 Hint: Consider the importance of stability in operations.
In which scenario would you expect higher differential gain?
💡 Hint: Think about the phase relationship of inputs.
1 more question available
Challenge Problems
Push your limits with advanced challenges
You are designing a differential amplifier with a target differential gain of 100. If you have a resistor of 2kΩ, what must the transconductance (g_m) be?
💡 Hint: Think about rearranging the gain formula to isolate g_m.
A BJT differential amplifier outputs an inverted signal of -5V when inputs of +2V and -2V are applied. Determine the common mode gain if both input signals were adjusted to +2V.
💡 Hint: Evaluate the characteristics of identical input signals.
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