{"schemaVersion":1,"slug":"active-high-pass-filter","name":"Active high-pass filter","kind":"symbol","abbreviation":"HPF","aliases":["high pass analogue filter","DC blocking active filter"],"category":"logic-signals","drawingTypes":["Schematic"],"referenceFamilies":["Manufacturer"],"summary":"Attenuates lower-frequency content while passing the intended higher-frequency signal band.","description":["Attenuates lower-frequency content while passing the intended higher-frequency signal band.","On a schematic, identify the signal reference, filter order and lower-band boundary and trace the filtered output and its downstream gain/measurement path. Keep the component tag and signal/reference names consistent across the control drawing, terminal schedule and device documentation.","High-pass behaviour differs from low-pass filtering and does not imply galvanic isolation of the signal.","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 signal reference, filter order and lower-band boundary.","Trace the filtered output and its downstream gain/measurement path."],"drawingChecklist":["Label the signal reference, filter order and lower-band boundary.","Cross-reference the filtered output and its downstream gain/measurement path.","Add the selected device or circuit documentation revision, power/reference connections and project signal convention."],"distinction":"High-pass behaviour differs from low-pass filtering and does not imply galvanic isolation of the signal.","facts":[{"label":"Common schematic mnemonic","value":"HPF — descriptive only; project/device documentation defines reference designations."},{"label":"Terminal / interface focus","value":"The signal reference, filter order and lower-band boundary"},{"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-low-pass-filter","plc-io"],"artwork":"electronics-filter-high","publishedOn":"2026-10-14","updatedOn":"2026-10-14","provenance":"independent-public-research","url":"https://eloragrid.ai/symbols/active-high-pass-filter","illustration":{"url":"https://eloragrid.ai/library/illustrations/active-high-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."}]}