What kind of device is an integrated circuit operational amplifier?
The correct answer is D: Analog. An integrated circuit operational amplifier is an analog device. Op-amps process continuous analog signals, not digital signals. For amateur radio operators, this is important for understanding op-amp applications. Understanding this helps when using op-amps in circuits.
Exam Tip
Operational amplifier = analog device. Think 'O'p-'A'mp = 'O'perates on 'A'nalog signals. Op-amps process continuous analog signals, not digital. Not digital, not MMIC, not programmable logic - just analog.
Memory Aid
"Operational amplifier = analog device. Think 'O'p-'A'mp = 'O'perates on 'A'nalog. Op-amps process continuous analog signals. Standard analog integrated circuit."
Real-World Application
You use an operational amplifier in an audio circuit. The op-amp amplifies continuous analog audio signals. Op-amps are analog devices - they process continuous voltages, not discrete digital values. This is why they're used in analog circuits like audio amplifiers and filters.
Key Concepts
Why Other Options Are Wrong
Option A (Digital): Incorrect. Op-amps aren't digital - they process continuous analog signals, not discrete digital signals. Digital is wrong.
Option B (MMIC): Incorrect. Op-amps aren't MMICs - MMICs are Monolithic Microwave Integrated Circuits for RF, not general-purpose op-amps. MMIC is a specific type, not the category.
Option C (Programmable Logic): Incorrect. Op-amps aren't programmable logic - programmable logic is for digital circuits, not analog. Programmable logic is wrong.
题目解析
The correct answer is D: Analog. An integrated circuit operational amplifier is an analog device. Op-amps process continuous analog signals, not digital signals. For amateur radio operators, this is important for understanding op-amp applications. Understanding this helps when using op-amps in circuits.
考试技巧
Operational amplifier = analog device. Think 'O'p-'A'mp = 'O'perates on 'A'nalog signals. Op-amps process continuous analog signals, not digital. Not digital, not MMIC, not programmable logic - just analog.
记忆口诀
Operational amplifier = analog device. Think 'O'p-'A'mp = 'O'perates on 'A'nalog. Op-amps process continuous analog signals. Standard analog integrated circuit.
实际应用示例
You use an operational amplifier in an audio circuit. The op-amp amplifies continuous analog audio signals. Op-amps are analog devices - they process continuous voltages, not discrete digital values. This is why they're used in analog circuits like audio amplifiers and filters.
错误选项分析
Option A (Digital): Incorrect. Op-amps aren't digital - they process continuous analog signals, not discrete digital signals. Digital is wrong. Option B (MMIC): Incorrect. Op-amps aren't MMICs - MMICs are Monolithic Microwave Integrated Circuits for RF, not general-purpose op-amps. MMIC is a specific type, not the category. Option C (Programmable Logic): Incorrect. Op-amps aren't programmable logic - programmable logic is for digital circuits, not analog. Programmable logic is wrong.
知识点
Operational amplifier, Analog, Integrated circuit, Op-amp
Verified Content
Question from official FCC General Class question pool. Explanation reviewed by licensed amateur radio operators.