{"schemaVersion":1,"slug":"active-low-pass-filter","name":"Active low-pass filter","kind":"symbol","abbreviation":"LPF","aliases":["low pass analogue filter","anti alias filter"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Passes the intended lower-frequency signal content while attenuating higher-frequency content through an active filter circuit.","description":["Passes the intended lower-frequency signal content while attenuating higher-frequency content through an active filter circuit.","On a schematic, identify the input/output references, filter order and corner-frequency documentation and trace the filtered measurement path and receiving converter. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","The LPF label describes a response class; it does not set cutoff, gain, order or component values.","The preview is an independently drawn educational functional reference. Add the selected component’s actual power pins, terminal numbers, timing or analogue reference details when producing a construction drawing."],"readingNotes":["Identify the input/output references, filter order and corner-frequency documentation.","Trace the filtered measurement path and receiving converter."],"drawingChecklist":["Label the input/output references, filter order and corner-frequency documentation.","Cross-reference the filtered measurement path and receiving converter.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"The LPF label describes a response class; it does not set cutoff, gain, order or component values.","facts":[{"label":"Common schematic mnemonic","value":"LPF — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The input/output references, filter order and corner-frequency documentation"},{"label":"Artwork scope","value":"Original educational functional/circuit reference; not a selected product pinout."}],"references":[{"sourceId":"pub-electronics-ti-active-filters","relevance":"Public primary manufacturer documentation establishes the component function or circuit/topology relationship. Preview geometry and drafting explanations are independently authored."}],"related":["active-high-pass-filter","plc-io"],"artwork":"electronics-filter-low","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/active-low-pass-filter","illustration":{"url":"https://eloragrid.ai/library/illustrations/active-low-pass-filter.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-ti-active-filters","title":"Basic Linear Design, Chapter 8: analogue filter response families","publisher":"Analog Devices","url":"https://www.analog.com/media/en/training-seminars/design-handbooks/Basic-Linear-Design/Chapter8.pdf","type":"manufacturer","scope":"Public primary handbook context for low-pass, high-pass, band-pass and band-rejection responses. The miniature response sketches are original conceptual illustrations, with no claimed cutoff, order or component values.","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."}]}