{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040AIZ-8.2","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040AIZ-8.2","canonicalUrl":"https://icboms.com/texas-instruments/LM4040AIZ-8.2","factsUrl":"https://icboms.com/api/mcp/products/LM4040AIZ-8.2","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040AIZ-8.2 precision shunt voltage reference, fixed 8.192V output, ±0.1% tolerance, 15 mA output, 95 µA cathode current, TO-92-3 through-hole package, -40°C to 85°C.","salesMarkdown":"## 8.192 V shunt reference with ±0.1% initial tolerance The LM4040AIZ-8.2 from Texas Instruments is a precision shunt voltage reference delivering a fixed 8.192 V output with an initial tolerance of ±0.1%. That 8.192 V level is a common bias for 12- and 16-bit ADCs and DACs that need a stable reference above the 5 V rail — think industrial analog input modules or precision sensor conditioners where the reference voltage directly sets the full-scale accuracy. ## Shunt topology — output current and quiescent draw As a shunt reference, it sinks current through a series resistor from the supply rail. The 15 mA output capability covers the reference load plus the cathode current of 95 µA — the 95 µA is what the reference itself draws to regulate. For a typical 10 V supply feeding 8.192 V through a 120 Ω resistor, the total current is about 15 mA, leaving headroom for the load. ## TO-92-3 package — through-hole mounting Housed in the TO-226-3 / TO-92-3 (TO-226AA) through-hole package, the LM4040AIZ-8.2 mounts directly into a 0.100-inch pitch three-pin footprint. For replacement on an existing board, the lead form and hole spacing match standard TO-92 layouts; no footprint change needed.","metaTitle":"LM4040AIZ-8.2 Shunt Reference, 8.192V ±0.1%, Obsolete","metaDescription":"Texas Instruments LM4040AIZ-8.2 precision shunt voltage reference: 8.192V fixed output, ±0.1% tolerance, TO-92-3 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Bulk","Tolerance":"±0.1%","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","Product Status":"Obsolete","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"95 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"130µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"TO-92-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"8.192V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8c40cf163b5cda64fd88ad5c9f25fe6d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040AIZ-8.2/alternatives.json"},"ai":{"faq":[{"question":"Is the LM4040AIZ-8.2 obsolete?","answer":"Yes, the LM4040AIZ-8.2 is listed as Obsolete by Texas Instruments. It is not recommended for new designs. For existing BOMs, source it through independent distribution against an RFQ."},{"question":"What is the tolerance and output voltage of the LM4040AIZ-8.2?","answer":"The LM4040AIZ-8.2 has a fixed output voltage of 8.192 V with an initial tolerance of ±0.1%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040AIZ-8.2","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040AIZ-8.2 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T18:03:28.771Z","lastPublished":"2026-07-22T18:03:28.771Z","indexable":true}}