{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3112AIDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3112AIDBZR","canonicalUrl":"https://icboms.com/texas-instruments/REF3112AIDBZR","factsUrl":"https://icboms.com/api/mcp/products/REF3112AIDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3112AIDBZR series voltage reference, fixed 1.25V output, ±0.2% tolerance, 20ppm/°C drift, 135µA supply, SOT-23-3, -40°C to 125°C.","salesMarkdown":"## 1.25V reference with ±0.2% initial accuracy — the precision floor for your ADC rail The REF3112AIDBZR is a 1.25V fixed-output series voltage reference from Texas Instruments, specified with a ±0.2% initial tolerance and a 20ppm/°C temperature coefficient. ## Noise and supply current — what they mean for a precision chain Output noise is 17µVp-p from 0.1 Hz to 10 Hz, and 24µVrms from 10 Hz to 10 kHz. For a 12-bit ADC with a 1.25V reference, the peak-to-peak noise contributes roughly 0.5 LSB of flicker noise — acceptable for most industrial measurements, but a 16-bit design would need a lower-noise reference or digital averaging. Supply current is 135µA typical, low enough to leave the reference powered continuously in a battery-operated sensor node without draining the cell overnight. ## SOT-23-3 footprint and supply range Housed in a SOT-23-3 package (also referred to as TO-236-3 / SC-59), the REF3112AIDBZR takes up minimal board area and is a direct fit for precision-voltage rails on mixed-signal PCBs. The input voltage range is 1.8V to 5.5V, so it can be powered from a 3.3V or 5V supply without a separate regulator. Output current is rated at 10 mA — enough to bias a single ADC reference input or a small resistive divider, but not intended to drive multiple converter channels or a heavy load.","metaTitle":"Texas Instruments REF3112AIDBZR Voltage Reference","metaDescription":"Texas Instruments REF3112AIDBZR series voltage reference, fixed 1.25V output, ±0.2% tolerance, 20ppm/°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":"1.8V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"135µA","Base Product Number":"REF3112","Noise - 0.1Hz to 10Hz":"17µVp-p","Noise - 10Hz to 10kHz":"24µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"20ppm/°C","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.9700","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3112AIDBZR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3112AIDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3112AIDBZR 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}}