{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4041D12IDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4041D12IDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/LM4041D12IDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/LM4041D12IDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4041D12IDBZRG4 precision shunt voltage reference, fixed 1.225 V output, ±1% tolerance, 12 mA output current, 80 µA cathode current, 20 µVrms noise, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"It delivers a stable 1.225 V output with ±1% initial tolerance, suitable for biasing ADCs, DACs, comparators, or setting a precision threshold in industrial and consumer designs. ## Noise and temperature drift — the precision angle Output noise is specified at 20 µVrms over a 10 Hz to 10 kHz bandwidth — a clean figure for a 1.225 V reference, meaning the reference adds less than 0.002 % of its output as noise in that band. For a 12-bit ADC with a 1.225 V reference, that drift is about 0.6 LSB — acceptable for most general-purpose measurements but worth derating if the system sees wide thermal swings. ## Shunt current and load drive As a shunt reference, the LM4041D12IDBZRG4 regulates by sinking current through its cathode. That 12 mA ceiling limits how much load the reference can drive directly — if the downstream ADC or comparator draws more than a few mA, you'll need a buffer or a higher-current reference. The shunt topology also means a series resistor is required between the supply and the reference; its value sets the total current through the device and must be chosen so that the cathode current stays between 80 µA and 12 mA over all load and supply conditions.","metaTitle":"LM4041D12IDBZRG4 Shunt Voltage Reference, 1.225 V Fixed","metaDescription":"Texas Instruments LM4041D12IDBZRG4 precision shunt voltage reference, fixed 1.225 V output, ±1% tolerance, 20 µVrms noise, SOT-23-3 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)","Tolerance":"±1%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"12 mA","Current - Supply":"-","Current - Cathode":"80 µA","Base Product Number":"LM4041","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"20µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"150ppm/°C","Voltage - Output (Min/Fixed)":"1.225V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3808","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/50fc5e198ec353cb298db1954beef248.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4041D12IDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of LM4041D12IDBZRG4?","answer":"Initial tolerance is ±1%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4041D12IDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4041D12IDBZRG4 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}}