Advanced Qualification · A-002 Advanced components and circuits · A-002-008-004
What is meant by the term op-amp offset voltage?
- AThe output voltage of the op-amp minus its input voltage
- BThe potential between the amplifier input terminals of the op-amp in a closed-loop condition
- CThe difference between the output voltage of the op-amp and the input voltage the required for the next stage
- DThe potential between the amplifier input terminals of the op-amp in an open-loop condition
Correct answer: B — The potential between the amplifier input terminals of the op-amp in a closed-loop condition. From the official ISED question bank, verified word for word.
Why
Offset voltage is the tiny voltage difference that must exist between the two input terminals of an operational amplifier to keep the output at zero when the device is working in a closed-loop condition, meaning feedback is connected to stabilize it. The full explanation — and one for every question — is in Pro.
Practise this section
Advanced components and circuits is section A-002 of the Advanced exam: Advanced components and circuits: semiconductors, amplifier classes, oscillators, mixers, filters and digital logic.
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