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2 cards from this section. Quick, good the night before a test.
What is the primary function of a differential amplifier?
Consider what's being compared in the input signals.
Why do we split the tail resistor in analysis?
Think about how inputs influence amplifier output.
What is the role of the tail resistor in a differential amplifier?
Think about the resistor's influence on current pathways and transistor behavior.
True or False: The output of a differential amplifier is the same for common and differential mode inputs.
Evaluate how signals are affected differently based on their input types.
Given a differential amplifier configuration where V_CC = 15V, R_C = 10kΩ, and R_T = 1kΩ, calculate the output DC voltage when the input base voltage is 3V.
Remember to account for transistor drop and use the Ohm’s law for resistive values.
If you replace the tail resistor R_T in a differential amplifier with an active load, discuss how this would affect differential and common mode gains.
Consider how active elements influence current flow as opposed to passive resistances.
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