67.6.2 - Influence of Load on Gain and Bandwidth
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Practice Questions
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What is the primary advantage of using active loads in amplifiers?
💡 Hint: Think about how the load interacts with the amplifier.
Define bandwidth in the context of an amplifier.
💡 Hint: Consider the frequency limitations of an amplifier.
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Interactive Quizzes
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What is the effect of an active load on the gain of an amplifier?
💡 Hint: Think about the purpose of active components.
True or False: Increasing output resistance will increase the bandwidth of an amplifier.
💡 Hint: Recall the relationship between resistance and bandwidth.
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Challenge Problems
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A common emitter amplifier with an active load is designed with specific NMOS and PMOS characteristics: NMOS with K' = 100 µA/V^2, and PMOS with K' = 50 µA/V^2. Calculate the expected gain if both devices are biased for equal current of 1 mA.
💡 Hint: Use the relationship between transconductance and biasing to solve this.
Design a circuit that showcases both active and passive loads and predicts the gain between these configurations using specified component values.
💡 Hint: Think of what happens when you switch the type of load and analyze each phase.
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