Does an Ideal Opamp Output Any Current?

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An ideal op-amp is characterized by its infinite output current capability, allowing it to maintain a consistent output voltage regardless of the load resistance. While real op-amps have limitations, the concept of an ideal op-amp implies that it can provide any necessary current to achieve the desired output. However, it is important to note that ideal op-amps have zero input current, meaning no current flows into the input terminals. This distinction is crucial for understanding the operational behavior of op-amps in various configurations. Overall, the discussion clarifies the ideal op-amp's theoretical properties regarding output and input currents.
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Hi,

Just a general question. For an ideal opamp, does any current flow from its output terminal?

What is the reasoning behind whatever the answer is?

Thanks
 
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An ideal op amp would have infinite output current capability. In other words,
Vo = -Rf/Ri*Vi no matter how low Rf and Ri are (inverter configuration assumed).

EVERY op amp has some output current or they'd be completely useless except as non- inverting buffers (<= unity gain).


Did you maybe mean INPUT currents? An ideal op amp has zero input currents.
 

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