{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040AIM3-8.2/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040AIM3-8.2-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4040AIM3-8.2-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4040AIM3-8.2%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040AIM3-8.2/NOPB, precision shunt voltage reference, fixed 8.192V output, ±0.1% tolerance, 100ppm/°C, 15mA output, 95µA cathode current, SOT-23-3, -40°C to 85°C.","salesMarkdown":"## Obsolete precision reference — sourcing through surplus channel ## 8.192V shunt reference with ±0.1% initial accuracy The ±0.1% tolerance places it in the precision tier suitable for ADC reference, DAC scaling, and precision comparator threshold applications where the reference voltage directly sets the conversion accuracy. The 8.192V output is a standard value for data converter references — it maps cleanly to 0xFFFF at 8.192V full-scale in a 16-bit ADC, simplifying the software scaling factor. ## Shunt topology and operating conditions Shunt reference requires an external series resistor. Cathode current range is 95 µA minimum to 15 mA maximum. The SOT-23-3 package (TO-236-3, SC-59, SOT-23-3) is a standard surface-mount footprint. ## Noise floor for precision circuits This is a typical figure for a precision shunt reference at this voltage level — it contributes roughly 0.0016% of full-scale noise in a 16-bit system, which is acceptable for most industrial ADC applications but may require additional filtering for metrology-grade designs targeting 18+ bits.","metaTitle":"Texas Instruments LM4040AIM3-8.2/NOPB Shunt Voltage","metaDescription":"Precision 8.192V shunt reference in SOT-23-3, ±0.1% tolerance, 100ppm/°C drift, -40°C to 85°C. LM4040AIM3-8.2/NOPB datasheet, price, and availability.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.1%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","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":"SOT-23-3","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/LM4040AIM3-8.2%2FNOPB/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040AIM3-8.2-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040AIM3-8.2-NOPB 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}}