{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3140AIDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3140AIDBZR","canonicalUrl":"https://icboms.com/texas-instruments/REF3140AIDBZR","factsUrl":"https://icboms.com/api/mcp/products/REF3140AIDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3140AIDBZR series voltage reference, 4.096 V fixed output, ±0.2% tolerance, 20 ppm/°C drift, 135 µA supply, SOT-23-3, -40°C to 125°C.","salesMarkdown":"## 4.096 V fixed reference in SOT-23-3 It is designed for precision ADC and DAC bias rails, sensor excitation, and general-purpose reference circuits where a stable, low-noise voltage is needed over temperature. ## Temperature drift and noise floor Low-frequency noise is specified at 53 µVp-p (0.1 Hz to 10 Hz) and 78 µVrms (10 Hz to 10 kHz), making it suitable for 12- to 14-bit data acquisition without an external filter. ## Supply headroom and load drive Input voltage range is 4.146 V to 5.5 V, so the reference needs at least 50 mV of headroom above the 4.096 V output. Output current is rated at 10 mA, enough to bias multiple ADC reference inputs or a small resistive divider chain. Quiescent supply current is 135 µA, which keeps the power budget lean in battery-operated designs.","metaTitle":"REF3140AIDBZR Texas Instruments Voltage Reference","metaDescription":"REF3140AIDBZR series voltage reference, 4.096 V fixed output, ±0.2% tolerance, 20 ppm/°C drift, 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","Product Status":"Active","Reference Type":"Series","Voltage - Input":"4.146V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"135µA","Base Product Number":"REF3140","Noise - 0.1Hz to 10Hz":"53µVp-p","Noise - 10Hz to 10kHz":"78µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"20ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9700","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3140AIDBZR/alternatives.json"},"ai":{"faq":[{"question":"Is REF3140AIDBZR obsolete or end-of-life?","answer":"No, the REF3140AIDBZR is listed as active. There is no indication of an impending EOL or last-time-buy from Texas Instruments."},{"question":"What is the tolerance of REF3140AIDBZR?","answer":"Initial tolerance is ±0.2%. This is a mid-grade accuracy level suitable for 12-bit systems; for 16-bit designs you would typically look at ±0.05% or better references."},{"question":"Is REF3140AIDBZR RoHS compliant?","answer":"The REF3140AIDBZR is supplied in a RoHS-compliant SOT-23-3 package. No lead or restricted substances above the threshold are present in the bill of materials."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3140AIDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3140AIDBZR 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}}