{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040A41IDCKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040A41IDCKR","canonicalUrl":"https://icboms.com/texas-instruments/LM4040A41IDCKR","factsUrl":"https://icboms.com/api/mcp/products/LM4040A41IDCKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040A41IDCKR precision shunt voltage reference, 4.096V fixed output, ±0.1% initial tolerance, 100ppm/°C temperature coefficient, 15 mA output, SC-70-5 package, -40°C to 85°C.","salesMarkdown":"## 4.096V shunt reference with ±0.1% initial accuracy The Texas Instruments LM4040A41IDCKR is a precision shunt voltage reference delivering a fixed 4.096V output with ±0.1% initial tolerance. This is the grade for 12-bit-plus ADC references where the 0.1% ceiling keeps the full-scale error under one LSB for a 12-bit converter. The shunt topology means it behaves like a Zener diode — it sinks current from the supply through a series resistor, so the load sees a regulated voltage as long as the cathode current stays above 88 µA and below 15 mA. ## Temperature drift and noise floor The 100 ppm/°C temperature coefficient means the output shifts by about 0.41 mV per 10°C. ## Package and mounting for dense boards Housed in a 5-lead SC-70-5 (SOT-353) package, this reference fits into tight analog front-end sections alongside op-amps and ADCs. The LM4040 family is a mature, widely second-sourced reference series, so supply risk is low.","metaTitle":"LM4040A41IDCKR Shunt Voltage Reference, 4.096V ±0.1%","metaDescription":"Texas Instruments LM4040A41IDCKR precision shunt reference, 4.096V fixed output, ±0.1% 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":"±0.1%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"5-TSSOP, SC-70-5, SOT-353","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"88 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"80µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SC-70-5","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.8315","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040A41IDCKR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to LM4040A41IDCKR in this family?","answer":"The LM4040A41IDCK (without the trailing R) is the same die in the same SC-70-5 package but shipped in different packaging — the IDCKR suffix indicates Tape & Reel, while IDCK is typically Tube or Bulk. Electrically identical; the choice is a logistics decision based on your pick-and-feed requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040A41IDCKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040A41IDCKR 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}}