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3 cards from this section. Quick, good the night before a test.
What does cascading mean in terms of amplifiers?
Think about how stages work in succession.
What is a buffer used for in amplifier circuits?
Consider the function of a buffer in a series of amplifiers.
What is the primary purpose of a buffer in amplifier circuits?
Think about what happens when amplifiers are directly connected.
True or False: Cascading amplifiers will always increase the overall gain.
Consider the definition of cascading effects.
You are given a CE amplifier with a gain of 18 and a bandwidth of 200 Hz. You cascade it with another CE amplifier with a gain of 10 but face a loading effect leading to a gain reduction by 0.5. What is the overall gain and how does the bandwidth change?
Don’t forget to apply both concepts of gain and frequency response.
Design a theoretical circuit with two cascaded CS amplifiers. The first has a gain of 15, and the second has a gain of 12, considering a loading effect of 0.7. How would you calculate the effective gain, and what factors would you identify that may affect the upper cutoff frequency?
There's a combination of loading and capacitance you need to consider for cutoff frequency.
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