{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3040AIDBZTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3040AIDBZTG4","canonicalUrl":"https://icboms.com/texas-instruments/REF3040AIDBZTG4","factsUrl":"https://icboms.com/api/mcp/products/REF3040AIDBZTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3040AIDBZTG4 series voltage reference, fixed 4.096V output, ±0.2% tolerance, 25 mA output, 50µA supply current, 75ppm/°C, SOT-23-3, -40°C to 125°C.","salesMarkdown":"## 4.096V series reference in SOT-23-3 — what it covers The Texas Instruments REF3040AIDBZTG4 is a precision series voltage reference with a fixed 4.096V output — a common full-scale reference for 12-bit and 16-bit ADCs that maps directly to a 0–4.096V input range. It delivers up to 25 mA output current, enough to drive an ADC reference input and a small sensor bridge without an external buffer. ## Noise floor and supply headroom Output noise is specified as 45µVp-p over 0.1Hz to 10Hz and 128µVrms over 10Hz to 10kHz — low enough for most precision analog chains without post-filtering. The input voltage range is 4.146V to 5.5V, so a clean 5V rail with 350 mV of headroom is sufficient. Quiescent supply current is 50µA, making this reference viable for battery-powered instruments where every microamp counts.","metaTitle":"REF3040AIDBZTG4 Voltage Reference, 4.096V, ±0.2%, SOT-23-3","metaDescription":"Texas Instruments REF3040AIDBZTG4 series voltage reference, fixed 4.096V output, ±0.2% tolerance, 75ppm/°C drift, SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","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","Product Status":"Obsolete","Reference Type":"Series","Voltage - Input":"4.146V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"25 mA","Current - Supply":"50µA","Base Product Number":"REF3040","Noise - 0.1Hz to 10Hz":"45µVp-p","Noise - 10Hz to 10kHz":"128µVrms","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"75ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.5000","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3040AIDBZTG4/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between REF3040AIDBZTG4 and REF3040AIDBZT?","answer":"The difference is the packaging / reel quantity option — the base die and electrical specifications are identical. Both are the same REF3040AIDBZT device; the G4 suffix indicates a specific reel/tape configuration."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3040AIDBZTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3040AIDBZTG4 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}}