{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040B82IDCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040B82IDCKR","canonicalUrl":"https://icboms.com/texas-instruments/LM4040B82IDCKR","factsUrl":"https://icboms.com/api/mcp/products/LM4040B82IDCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040B82IDCKR, precision shunt voltage reference, fixed 8.192V output, ±0.2% tolerance, 100ppm/°C, 110µA cathode current, SC-70-5 package, -40°C to 85°C.","salesMarkdown":"## 8.192 V fixed shunt — what it anchors The LM4040B82IDCKR is a fixed 8.192 V shunt voltage reference from Texas Instruments' LM4040 family. The shunt topology uses a two-terminal Zener-like behavior. ## Tolerance and drift — the calibration story At ±0.2% initial tolerance, this B-grade part holds the output to within about 16 mV at 25 °C without trimming. That combination puts it in the class of references suitable for industrial sensor conditioning and data-acquisition paths where a few LSBs of drift are tolerable but a generic Zener would wander too far. ## Noise floor for the signal chain The 130 µVrms noise spec (10 Hz to 10 kHz) is typical for a bandgap-based shunt at this voltage. If the downstream ADC has a 100 µV LSB at 12 bits, this reference contributes about 1.3 LSBs of noise — acceptable for most industrial control loops but worth a bypass cap at the reference output pin to knock down the wideband component. ## Package fit and board-level reality The SC-70-5 (SOT-353) footprint is a 5-pin surface-mount package. The supplier device package is SC-70-5. The base product number LM4040 spans multiple voltage options and tolerance grades.","metaTitle":"LM4040B82IDCKR Shunt Voltage Reference, 8.192V ±0.2% SC-70-5","metaDescription":"Texas Instruments LM4040B82IDCKR precision shunt reference, fixed 8.192V output, ±0.2% tolerance, 100ppm/°C drift, SC-70-5 package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"110 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":"SC-70-5","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"8.192V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6800","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040B82IDCKR/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of LM4040B82IDCKR?","answer":"The initial tolerance is ±0.2%. Over temperature the drift adds 100 ppm/°C, so the total accuracy budget depends on your operating temperature range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040B82IDCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040B82IDCKR 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}}