{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"TS3312AQPR","brand":"STMicroelectronics","brandSlug":"stmicroelectronics","productSlug":"TS3312AQPR","canonicalUrl":"https://icboms.com/stmicroelectronics/TS3312AQPR","factsUrl":"https://icboms.com/api/mcp/products/TS3312AQPR","rawCanonicalId":null},"summary":{"shortDescription":"STMicroelectronics TS3312AQPR series voltage reference, fixed 1.25V output, ±0.15% tolerance, 30ppm/°C temperature coefficient, 27µVp-p noise 0.1Hz-10Hz, 5 mA output, 8-UFQFN package.","salesMarkdown":"## 1.25V fixed reference — 30 ppm/°C drift in a 1.5-mm QFN The TS3312AQPR is a series voltage reference from STMicroelectronics, delivering a fixed 1.25 V output with ±0.15% initial accuracy and a 30 ppm/°C temperature coefficient. Maximum output current is 5 mA; the reference itself draws 10 µA quiescent. That low self-consumption keeps the thermal budget minimal in the 8-UFQFN (1.5×1.5 mm) package — no thermal pad required for normal operation. ## Industrial temp range — footprint for dense analog front-ends The 8-QFN (1.5×1.5 mm) supplier package places the die close to the load — useful when routing a clean 1.25 V reference to an ADC or DAC on a multi-layer board where trace length adds noise pickup. Surface-mount assembly with standard QFN reflow profile. The 1.5 mm body width fits under a 0.5 mm pitch QFN; the exposed pad on the underside (if present) should be connected to the ground plane for mechanical stability, though the low 10 µA supply current means the pad is not needed for heat sinking. ## Sourcing and lifecycle — active, no NRND flag Lifecycle status is Active per STMicroelectronics.","metaTitle":"STMicroelectronics TS3312AQPR Voltage Reference, 1.25V","metaDescription":"STMicroelectronics TS3312AQPR series voltage reference, fixed 1.25V output, ±0.15% tolerance, 30ppm/°C drift, 27µVp-p noise, -40°C to 125°C, 8-QFN.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±0.15%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-UFQFN","Reference Type":"Series","Voltage - Input":"1.8V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"5 mA","Current - Supply":"10µA","Noise - 0.1Hz to 10Hz":"27µVp-p","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"8-QFN (1.5x1.5)","Temperature Coefficient":"30ppm/°C","Voltage - Output (Min/Fixed)":"1.25V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.79","priceTiers":[{"qty":1,"price":"$1.79000","currency":"USD"},{"qty":10,"price":"$1.60600","currency":"USD"},{"qty":25,"price":"$1.51520","currency":"USD"},{"qty":100,"price":"$1.29100","currency":"USD"},{"qty":250,"price":"$1.21220","currency":"USD"},{"qty":500,"price":"$1.06068","currency":"USD"},{"qty":1000,"price":"$1.00065","currency":"USD"},{"qty":3000,"price":"$1.00065","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/bb9117a05d24d1d6a85fc1454a7ab0b6.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/TS3312AQPR/alternatives.json"},"ai":{"faq":[{"question":"What is the closest functional second-source to TS3312AQPR?","answer":"The TS3333AQPR is the same-family sibling with a 3.3 V fixed output — same ±0.15% tolerance, same 30 ppm/°C drift, same 8-QFN package, same -40°C to 125°C range. The decision between them is purely the output voltage: 1.25 V vs 3.3 V. The TS3325AQPR (2.5 V output) is another direct peer. All three share the same footprint and pinout, so a board laid out for one accepts the others without rewiring."},{"question":"What is the TS3312AQPR's output noise and how does it affect ADC performance?","answer":"For a 12-bit ADC with a 3.3 V reference, one LSB is about 805 µV — the reference noise is roughly 3% of an LSB, so it does not limit the converter's SNR. For a 16-bit ADC (1 LSB ≈ 50 µV at 3.3 V), the reference noise becomes a contributor and may need averaging or a lower-noise reference."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/stmicroelectronics/TS3312AQPR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/stmicroelectronics/TS3312AQPR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}