Engineering English
Open-loop Gain
Electronics Engineering · Last updated: July 30, 2026 · How this entry was written
Definition: The open-loop gain of an amplifier is the voltage gain measured without any feedback network connected. It is typically very high for operational amplifiers, often exceeding 100,000.
Example in context
“The open-loop gain of an op-amp determines the accuracy of a closed-loop amplifier in precision measurement circuits.”
“Op-amp'ın açık döngü kazancı, hassas ölçüm devrelerinde kapalı döngü amplifikatörünün doğruluğunu belirler.”
Where engineers use it
When designing feedback amplifiers, engineers rely on the open-loop gain to compute closed-loop gain, bandwidth, and accuracy. It is a key specification in datasheets for op-amps and is used in spice simulations to model frequency response.
Synonyms: Aol, DC gain
Antonyms: closed-loop gain
Practice: can you use “Open-loop Gain” at work?
You are troubleshooting a precision amplifier circuit whose output is not matching theoretical gain. Check the op-amp's open-loop gain at the operating frequency to diagnose the error.
Show a model answer
“Please compute the closed-loop gain given an open-loop gain of 100 dB and a feedback factor of 0.01.”
“Open-loop Gain” in 21 languages
| English | Open-loop Gain |
|---|---|
| Turkish | açık döngü kazancı |
| French | gain en boucle ouverte |
| German | Leerlaufverstärkung |
| Spanish | ganancia en lazo abierto |
| Chinese | 开环增益 |
| Arabic | كسب الحلقة المفتوحة |
| Portuguese | ganho em malha aberta |
| Russian | усиление разомкнутого контура |
| Japanese | 開ループ利得 |
| Italian | guadagno ad anello aperto |
| Vietnamese | hệ số khuếch đại vòng hở |
| Hindi | ओपन-लूप लाभ |
| Thai | อัตราขยายวงเปิด |
| Indonesian | penguatan loop terbuka |
| Korean | 개방 루프 이득 |
| Bengali | ওপেন-লুপ লাভ |
| Dutch | open-lusversterking |
| Swedish | öppen slinga förstärkning |
| Finnish | avosilmukkavahvistus |
| Ukrainian | коефіцієнт підсилення розімкненого контуру |
Frequently asked questions
What does Open-loop Gain mean in engineering?
The open-loop gain of an amplifier is the voltage gain measured without any feedback network connected. It is typically very high for operational amplifiers, often exceeding 100,000. In Electronics Engineering, the term carries a usage-frequency rating of 10/10 in the Engineering English library.
How do you pronounce Open-loop Gain?
Open-loop Gain is pronounced /ˈoʊpən luːp ɡeɪn/ (IPA). The Engineering English app plays audio for the term and checks your pronunciation with speech recognition.
How is Open-loop Gain used in a sentence?
Example from an engineering context: “The open-loop gain of an op-amp determines the accuracy of a closed-loop amplifier in precision measurement circuits.”
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