{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040D25QDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040D25QDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/LM4040D25QDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/LM4040D25QDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040D25QDBZRG4, precision shunt voltage reference, fixed 2.5 V output, ±1% tolerance, 80 µA cathode current, -40°C to 125°C, SOT-23-3 package, Tape & Reel.","salesMarkdown":"## 2.5 V shunt reference in a SOT-23-3 — what it buys you It operates as a two-terminal shunt — no external series pass element — making it a drop-in for biasing ADC references, DAC voltage rails, or regulator feedback dividers in tight board spaces. ## 80 µA cathode current — the power budget trade-off Cathode current is 80 µA typical, with a maximum output current of 15 mA. The low quiescent floor means the reference can run from a high-impedance bias resistor without wasting rail current, but the 15 mA ceiling limits how many loads it can drive directly — plan a buffer for multiple ADC inputs or a long trace. ## 35 µVrms noise — clean enough for 12-bit systems That's clean enough for a 12-bit ADC with a 2.5 V reference (1 LSB ~610 µV) without an external filter cap, though a 0.1 µF bypass at the output never hurts.","metaTitle":"TI LM4040D25QDBZRG4 Shunt Voltage Reference, 2.5V ±1%","metaDescription":"Texas Instruments LM4040D25QDBZRG4 precision shunt reference: fixed 2.5V output, ±1% tolerance, 80 µA cathode current, -40°C to 125°C.","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":"15 mA","Current - Supply":"-","Current - Cathode":"80 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"35µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"150ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.5900","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040D25QDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of LM4040D25QDBZRG4?","answer":"Initial tolerance is ±1% at 25°C. That's the 'D' grade in the part number — the 'Q' suffix indicates automotive-qualified (AEC-Q100) testing, though the tolerance binning is the same as the standard 'D' grade."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040D25QDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040D25QDBZRG4 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}}