{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040C25IDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040C25IDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/LM4040C25IDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/LM4040C25IDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040C25IDBZRG4, precision shunt voltage reference, 2.5V fixed output, ±0.5% tolerance, 100 ppm/°C temperature coefficient, 35 µVrms noise, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"The Texas Instruments LM4040C25IDBZRG4 is a precision shunt voltage reference delivering a fixed 2.5 V output with ±0.5 % initial tolerance. ## Tolerance, drift, and noise — the accuracy budget The ±0.5 % tolerance at 25 °C sets the initial voltage to 2.5 V ±12.5 mV. That is the floor for a 12-bit ADC's LSB — you keep the full code range without a trim pot in production. Temperature coefficient is 100 ppm/°C. For a 14-bit converter that drift eats into the top and bottom codes — budget for it in the system error analysis. Noise spec is 35 µVrms over the 10 Hz to 10 kHz band. That is quiet enough to feed a 16-bit SAR ADC without an external RC filter in most industrial signal chains. ## Package and pinout — SOT-23-3 footprint facts Three-pin SOT-23-3 (TO-236-3 / SC-59) surface-mount package. The pinout is standard for the LM4040 family: cathode, anode, and no-connect. The 15 mA maximum output current and 80 µA minimum cathode current define the bias resistor range for the shunt configuration.","metaTitle":"Texas Instruments LM4040C25IDBZRG4 Shunt Reference","metaDescription":"TI LM4040C25IDBZRG4 precision shunt voltage reference: 2.5V fixed output, ±0.5% tolerance, 100 ppm/°C drift, 35 µVrms noise. SOT-23-3. Active production.","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":"±0.5%","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~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040C25IDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"Is LM4040C25IDBZRG4 a surface mount device?","answer":"Yes. It comes in the SOT-23-3 surface-mount package (also listed as TO-236-3 or SC-59)."},{"question":"What is the tolerance of LM4040C25IDBZRG4?","answer":"±0.5 % initial tolerance at 25 °C. That is the 'C' grade in the LM4040 family — tighter than the 'I' (±1 %) and 'D' (±0.1 %) options."},{"question":"What is a direct equivalent or replacement for LM4040C25IDBZRG4?","answer":"The LM4040 family is pin-compatible across the voltage and tolerance grades. A same-footprint alternative with the same 2.5 V output and ±0.5 % tolerance is the LM4040C25IDBZR (the non-G4 RoHS suffix)."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040C25IDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040C25IDBZRG4 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}}