{"schemaVersion":1,"slug":"operational-amplifier","name":"Operational amplifier","kind":"symbol","abbreviation":"OP-AMP","aliases":["op amp","voltage feedback amplifier"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"An analogue amplifier represented by inverting and non-inverting inputs, an output and its supply connections.","description":["An analogue amplifier represented by inverting and non-inverting inputs, an output and its supply connections.","On a schematic, identify the plus/minus input roles, power rails and feedback network and trace the amplified signal and output load. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","An op amp is designed for its documented amplifier behaviour; it is not interchangeable with a dedicated fast voltage comparator.","Terminal letters describe electrical roles, not package pin numbers. Check the selected public datasheet for the actual pin assignment, polarity and any internally connected terminals before completing the drawing."],"readingNotes":["Identify the plus/minus input roles, power rails and feedback network.","Trace the amplified signal and output load."],"drawingChecklist":["Label the plus/minus input roles, power rails and feedback network.","Cross-reference the amplified signal and output load.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"An op amp is designed for its documented amplifier behaviour; it is not interchangeable with a dedicated fast voltage comparator.","facts":[{"label":"Common schematic mnemonic","value":"OP-AMP — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The plus/minus input roles, power rails and feedback network"},{"label":"Artwork scope","value":"Original educational component glyph; not a certified standard graphic or package pinout."}],"references":[{"sourceId":"pub-electronics-adi-opamp","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["voltage-comparator","plc-io"],"artwork":"electronics-amp-opamp","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/operational-amplifier","illustration":{"url":"https://eloragrid.ai/library/illustrations/operational-amplifier.svg","scope":"Original educational concept; not an official standard graphic or product footprint","license":"https://creativecommons.org/licenses/by/4.0/"},"sources":[{"id":"pub-electronics-adi-opamp","title":"ADA4522-1 — operational amplification","publisher":"Analog Devices","url":"https://www.analog.com/en/products/ada4522-1.html","type":"manufacturer","scope":"Public component description and documentation for operational amplification. Used to support the functional reference, not to prescribe a circuit or redistribute product diagrams.","checkedOn":"2026-10-14","reuse":"link-only","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}]}