{"schemaVersion":1,"slug":"current-sense-amplifier","name":"Current-sense amplifier","kind":"symbol","abbreviation":"CSA","aliases":["shunt amplifier","current measurement amplifier"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Amplifies a voltage associated with a current-sensing shunt using the selected measurement-input arrangement.","description":["Amplifies a voltage associated with a current-sensing shunt using the selected measurement-input arrangement.","On a schematic, identify the shunt polarity, input common-mode reference and gain definition and trace the current-related output and ADC or protection circuit. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","A current-sense amplifier measures a shunt voltage; it does not replace the shunt or establish an isolated current-transformer connection.","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 shunt polarity, input common-mode reference and gain definition.","Trace the current-related output and ADC or protection circuit."],"drawingChecklist":["Label the shunt polarity, input common-mode reference and gain definition.","Cross-reference the current-related output and ADC or protection circuit.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"A current-sense amplifier measures a shunt voltage; it does not replace the shunt or establish an isolated current-transformer connection.","facts":[{"label":"Common schematic mnemonic","value":"CSA — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The shunt polarity, input common-mode reference and gain definition"},{"label":"Artwork scope","value":"Original educational component glyph; not a certified standard graphic or package pinout."}],"references":[{"sourceId":"pub-electronics-adi-current-sense","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["current-measuring-shunt","plc-io"],"artwork":"electronics-amp-current-sense","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/current-sense-amplifier","illustration":{"url":"https://eloragrid.ai/library/illustrations/current-sense-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-current-sense","title":"AD8418 — shunt-current sensing","publisher":"Analog Devices","url":"https://www.analog.com/en/products/ad8418.html","type":"manufacturer","scope":"Public component description and documentation for shunt-current sensing. 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."}]}