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WorksheetsECE315_Diff1
Total questions: 5
Worksheet time: 3mins
What is the primary function of a differential amplifier?
To convert AC signals to DC
To filter out noise from a signal
To amplify the difference between two input signals
To amplify a single-ended signal
What is the effect of applying common-mode signals to an ideal differential amplifier?
It increases the gain
It decreases the input impedance
It produces zero differential output
It enhances the output
In a BJT differential pair, the linear region is determined by ......
the supply voltage
the tail current
the Early voltage
the thermal voltage
For the same power consumption, the gain of a differential amplifier is equal to ......
half the gain of the CE amplifier
the gain of the CE amplifier
double the gain of the CE amplifier
What happens when you increase the common mode of the input?
The tail current decreases
The output common-mode voltage changes
The differential gain increases
The output swing decreases
