{"schemaVersion":1,"slug":"active-notch-filter","name":"Active notch filter","kind":"symbol","abbreviation":"NOTCH","aliases":["band stop filter","band rejection filter"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Attenuates a defined frequency region while retaining the intended content outside it.","description":["Attenuates a defined frequency region while retaining the intended content outside it.","On a schematic, identify the rejection-frequency reference, bandwidth and active circuit supplies and trace the filtered output and measurement use. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","The notch response does not identify the actual frequency or depth without the selected filter design.","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 rejection-frequency reference, bandwidth and active circuit supplies.","Trace the filtered output and measurement use."],"drawingChecklist":["Label the rejection-frequency reference, bandwidth and active circuit supplies.","Cross-reference the filtered output and measurement use.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"The notch response does not identify the actual frequency or depth without the selected filter design.","facts":[{"label":"Common schematic mnemonic","value":"NOTCH — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The rejection-frequency reference, bandwidth and active circuit supplies"},{"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-band-pass-filter","plc-io"],"artwork":"electronics-filter-notch","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/active-notch-filter","illustration":{"url":"https://eloragrid.ai/library/illustrations/active-notch-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."}]}