Most of the linear ICs are based on the two-transistor differential amplifier because of its___________?
Correct answer: D. high CMRR
- A. input voltage dependent linear transfer characteristic
- B. high voltage gain
- C. high input resistance
- D. high CMRR
Explanation
A differential amplifier rejects signals common to both inputs while amplifying their difference, giving it a high common-mode rejection ratio. High gain and input resistance are useful features but are not the principal reason for its widespread use in linear ICs.
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