µA702 operational amplifier
E1026749
The µA702 operational amplifier is one of the earliest monolithic integrated op-amps, designed by Bob Widlar and influential in establishing practical analog IC design.
All labels observed (1)
| Label | Occurrences |
|---|---|
| µA702 operational amplifier canonical | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T13183641 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: µA702 operational amplifier Context triple: [Bob Widlar, notableWork, µA702 operational amplifier]
-
A.
µA741
µA741 is a classic general-purpose operational amplifier integrated circuit widely used in analog electronics for signal conditioning, filtering, and amplification.
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B.
µA709
The µA709 is an early monolithic operational amplifier integrated circuit that became widely used in analog electronics and helped establish the commercial op-amp market.
-
C.
LM-series analog ICs
LM-series analog ICs are a widely used family of linear integrated circuits, including voltage regulators, operational amplifiers, and timers, originally introduced by National Semiconductor for general-purpose analog signal processing and power management.
-
D.
Mostek
Mostek was an American semiconductor company known for its influential role in early microprocessor, memory, and bus interface technologies during the 1970s and 1980s.
-
E.
HP 200A audio oscillator
The HP 200A audio oscillator was Hewlett-Packard’s first commercial product, a pioneering low-distortion audio signal generator that helped launch the company and became widely used in electronics testing, including by Walt Disney Studios.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: µA702 operational amplifier Target entity description: The µA702 operational amplifier is one of the earliest monolithic integrated op-amps, designed by Bob Widlar and influential in establishing practical analog IC design.
-
A.
µA741
µA741 is a classic general-purpose operational amplifier integrated circuit widely used in analog electronics for signal conditioning, filtering, and amplification.
-
B.
µA709
The µA709 is an early monolithic operational amplifier integrated circuit that became widely used in analog electronics and helped establish the commercial op-amp market.
-
C.
LM-series analog ICs
LM-series analog ICs are a widely used family of linear integrated circuits, including voltage regulators, operational amplifiers, and timers, originally introduced by National Semiconductor for general-purpose analog signal processing and power management.
-
D.
Mostek
Mostek was an American semiconductor company known for its influential role in early microprocessor, memory, and bus interface technologies during the 1970s and 1980s.
-
E.
HP 200A audio oscillator
The HP 200A audio oscillator was Hewlett-Packard’s first commercial product, a pioneering low-distortion audio signal generator that helped launch the company and became widely used in electronics testing, including by Walt Disney Studios.
- F. None of above. chosen
Statements (29)
| Predicate | Object |
|---|---|
| instanceOf |
analog integrated circuit
ⓘ
monolithic integrated circuit ⓘ operational amplifier ⓘ |
| application |
analog computing
ⓘ
general-purpose analog signal processing ⓘ linear amplification ⓘ |
| belongsToFamily | µA series operational amplifiers NERFINISHED ⓘ |
| category |
historical electronic component
ⓘ
linear integrated circuit ⓘ |
| designedBy | Bob Widlar NERFINISHED ⓘ |
| designer | Bob Widlar NERFINISHED ⓘ |
| era | early integrated circuit era ⓘ |
| hasAbbreviation | µA702 NERFINISHED ⓘ |
| hasFeature | internal frequency compensation required externally in many applications ⓘ |
| influenced |
µA709 operational amplifier
NERFINISHED
ⓘ
µA741 operational amplifier ⓘ |
| introducedInDecade | 1960s ⓘ |
| manufacturer | Fairchild Semiconductor NERFINISHED ⓘ |
| marketedBy | Fairchild Semiconductor NERFINISHED ⓘ |
| notableFor |
being one of the earliest monolithic integrated operational amplifiers
ⓘ
helping establish practical analog IC design ⓘ |
| packaging |
dual in-line package
ⓘ
metal can package ⓘ |
| supplyType | dual supply ⓘ |
| technology | bipolar junction transistor ⓘ |
| usedIn |
audio-frequency amplifiers
ⓘ
control systems ⓘ early analog computers ⓘ instrumentation circuits ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: µA702 operational amplifier Description of subject: The µA702 operational amplifier is one of the earliest monolithic integrated op-amps, designed by Bob Widlar and influential in establishing practical analog IC design.
Referenced by (2)
Full triples — surface form annotated when it differs from this entity's canonical label.