🔍 Key Concepts

• Internal stages of an operational amplifier (input, intermediate, output) and what each generally does • Open-loop gain and stability – which part of the op-amp mainly sets these in the basic internal design (not the external circuit) • Difference between internal amplifier stages and external feedback network

💭 Think About

• Which stage of an op-amp is usually responsible for providing a large voltage gain before the output stage? • Does stability mainly come from the output power stage, or from how the main amplifying section is designed and compensated? • Is the feedback circuit itself inside the op-amp die, or is it usually an external network you design around the op-amp?

✅ Before You Answer

• Identify which choice describes a stage whose primary job is to provide high voltage gain • Identify which choice describes something mainly used to control output power rather than small-signal gain and stability • Consider whether feedback (choice C) in this question is referring to an external circuit you design, or an internal building block stage of the op-amp