{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF5025SHKQ","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF5025SHKQ","canonicalUrl":"https://icboms.com/texas-instruments/REF5025SHKQ","factsUrl":"https://icboms.com/api/mcp/products/REF5025SHKQ","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF5025SHKQ, Series Voltage Reference, Fixed 2.5V Output, ±0.9% Tolerance, 7.5µVp-p Noise, 1.5mA Supply Current, -55°C to 210°C, 8-CFP Surface Mount Package, Tube.","salesMarkdown":"## 2.5 V fixed reference for high-temperature precision rails It is designed for applications requiring a stable voltage rail across extreme temperatures, from -55°C to 210°C, making it suitable for downhole drilling, engine bay electronics, and satellite systems where standard commercial or industrial references would fail. ## Noise and drift — what the specs mean for your ADC chain Low-frequency noise is specified at 7.5 µVp-p over 0.1 Hz to 10 Hz, which sets the noise floor for a precision ADC reference input. The 40 ppm/°C temperature coefficient means the output shifts by 100 µV over a 100°C swing — a factor to budget in the system error stack-up, especially in the high-temperature end of the operating range. ## Input headroom and output drive The input voltage range spans 3.25 V to 18 V, giving plenty of headroom above the 2.5 V output even with a noisy or loosely regulated supply rail. Output current is rated at 7 mA — enough to bias a single ADC reference input or a small resistive divider, but not intended to power external loads. The 1.5 mA supply current is the quiescent draw from the input rail. ## Ceramic package — why it matters for the BOM The 8-CFP (ceramic flatpack) package, also described as 8-CSOIC with a 0.220-inch body width, is a hermetic surface-mount package. Unlike plastic SOIC, the ceramic body handles the 210°C operating temperature without delamination or outgassing. The footprint is similar to a standard SOIC-8, but the thermal expansion coefficient matches ceramic substrates used in hybrid and MCM assemblies.","metaTitle":"REF5025SHKQ Voltage Reference, 2.5V Fixed Output","metaDescription":"Texas Instruments REF5025SHKQ series voltage reference, 2.5V fixed output, ±0.9% tolerance, 7.5µVp-p noise, -55°C to 210°C, 8-CFP package.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tube","Tolerance":"±0.9%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-CSOIC (0.220\\\", 5.65mm Width)","Product Status":"Active","Reference Type":"Series","Voltage - Input":"3.25V ~ 18V","lifecycle_stage":"eol_hot","Current - Output":"7 mA","Current - Supply":"1.5mA","Base Product Number":"REF5025","Noise - 0.1Hz to 10Hz":"7.5µVp-p","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-55°C~210°C(TA)","Supplier Device Package":"8-CFP","Temperature Coefficient":"40ppm/°C","Voltage - Output (Min/Fixed)":"2.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$121.1000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/aba55903fcdcc028a132df9aaf229611.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF5025SHKQ/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of REF5025SHKQ?","answer":"The initial accuracy is ±0.9%."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF5025SHKQ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF5025SHKQ 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}}