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2 cards from this section. Quick, good the night before a test.
What is the ideal input impedance for an operational amplifier?
Think about the source circuit's integrity.
Why is low output impedance desirable in op-amps?
Consider how it affects the relationship with the load.
What is the primary reason for high input impedance in op-amps?
Consider the effect on the source circuit.
True or False: A low output impedance is needed to prevent significant voltage drop when driving loads.
Think about why this is relevant in operational amplifier design.
Design a signal conditioning circuit that incorporates principles of both input and output impedance. Explain how you would choose the components.
Think about how each component influences the impedance characteristics.
Suppose an op-amp has a stated input impedance of 10 kΩ and the source has an output impedance of 1 kΩ. Calculate the voltage drop across the source when connected to the op-amp.
Use the voltage divider formula.
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