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The chapter covers the performance of Common Base and Common Gate amplifiers, particularly focusing on the impact of removing coupling capacitors on input resistance, voltage gain, and output impedance. Through numerical analyses, key measurements reveal how these parameters are affected and the guidelines are set for designing these circuits for specific requirements. Ultimately, it emphasizes the importance of maintaining AC ground at the base node in these amplifiers.
References
Lecture 53.pdfClass Notes
Memorization
What we have learnt
Final Test
Revision Tests
Term: Common Base Amplifier
Definition: An amplifier configuration where the base terminal is common to both input and output circuits, often characterized by high frequency response.
Term: Common Gate Amplifier
Definition: An amplifier configuration where the gate terminal is common to both input and output circuits, primarily used in low-noise amplifications.
Term: Input Resistance
Definition: The resistance that the circuit presents to the input signal, affecting how much of the signal is processed.
Term: Voltage Gain
Definition: The ratio of output voltage to input voltage, indicating how much an amplifier boosts the signal.
Term: Output Impedance
Definition: The impedance that the amplifier presents at its output terminal, influencing its ability to drive connected loads.