{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3012AIDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3012AIDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/REF3012AIDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/REF3012AIDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3012AIDBZRG4, series voltage reference, fixed 1.25V output, ±0.2% tolerance, 50 µA supply, 14 µVp-p noise, -40°C to 125°C, SOT-23-3 package.","salesMarkdown":"It is a three-terminal device in a SOT-23-3 package — the same footprint as a small-signal transistor — so it fits into tight analog front-end layouts where a clean reference voltage is needed for an ADC, DAC, or comparator threshold. The ±0.2% initial tolerance means the output sits between 1.2475 V and 1.2525 V at 25 °C without any trim. For a 12-bit ADC with a 1.25 V reference, that tolerance contributes roughly 8 LSB of gain error before the temperature drift is factored in — good enough for most industrial sensing and control loops without a calibration step. ## Noise floor and temperature drift — the analog designer's call Low-frequency noise is specified at 14 µVp-p from 0.1 Hz to 10 Hz, and broadband noise at 42 µVrms from 10 Hz to 10 kHz. That 14 µVp-p figure is the one that matters for a precision weigh scale or a thermocouple front-end — it sets the noise floor below the ADC's least-significant bit at 16-bit resolution with a 1.25 V reference. Temperature coefficient is 75 ppm/°C. For a 0.1% accurate system, that drift eats into the error budget — plan a calibration hold or a tighter-trimmed reference if the ambient swings more than 50°C. ## Sourcing and lifecycle — still a current-production part The SOT-23-3 package is a common, widely stocked footprint.","metaTitle":"REF3012AIDBZRG4 1.25V Series Voltage Reference, ±0.2%","metaDescription":"Texas Instruments REF3012AIDBZRG4 series voltage reference, fixed 1.25V output, ±0.2% tolerance, 50 µA supply, -40°C to 125°C. SOT-23-3.","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":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Series","Voltage - Input":"1.8V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"25 mA","Current - Supply":"50µA","Base Product Number":"REF3012","Noise - 0.1Hz to 10Hz":"14µVp-p","Noise - 10Hz to 10kHz":"42µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"75ppm/°C","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.3600","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3012AIDBZRG4/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3012AIDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3012AIDBZRG4 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}}