{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF5040IDGKT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF5040IDGKT","canonicalUrl":"https://icboms.com/texas-instruments/REF5040IDGKT","factsUrl":"https://icboms.com/api/mcp/products/REF5040IDGKT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF5040IDGKT series voltage reference, fixed 4.096V output, ±0.05% tolerance, 3ppm/°C temperature coefficient, 3µVp-p noise, 10 mA output, 8-VSSOP package, -40°C to 125°C.","salesMarkdown":"## Precision 4.096 V reference for ADC/DAC chains That tight tolerance makes it a go-to bias for 12- to 16-bit SAR ADCs where the reference error directly eats into the system's total unadjusted error budget. Low-frequency noise is spec'd at 3 µVp-p over 0.1 Hz to 10 Hz, and the temperature coefficient is 3 ppm/°C — both numbers that matter when the reference sits upstream of a precision measurement front-end in an industrial controller or a data-acquisition module. ## Supply headroom and output drive Input voltage range is 4.296 V to 18 V, so the part needs at least 200 mV of headroom above the 4.096 V output to regulate. That is a tight dropout for a series reference — it lets you run from a 5 V rail without a separate pre-regulator. Output is rated for 10 mA continuous, enough to bias the reference input of multiple ADCs or a DAC and still leave margin for a small bypass cap. Quiescent current is 1.2 mA typical, which keeps the self-heating low in the 8-VSSOP package.","metaTitle":"REF5040IDGKT 4.096V Series Voltage Reference","metaDescription":"Texas Instruments REF5040IDGKT precision series voltage reference: 4.096V output, ±0.05% tolerance, 3ppm/°C drift, 3µVp-p noise, -40°C to 125°C.","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":"±0.05%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","Product Status":"Active","Reference Type":"Series","Voltage - Input":"4.296V ~ 18V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"1.2mA","Base Product Number":"REF5040","Noise - 0.1Hz to 10Hz":"3µVp-p","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"8-VSSOP","Temperature Coefficient":"3ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.8000","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF5040IDGKT/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of REF5040IDGKT?","answer":"Initial accuracy is ±0.05%. That means the output at 25°C is guaranteed within 4.096 V ± 2.048 mV — tight enough that most designs can skip a trim pot in the reference path."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF5040IDGKT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF5040IDGKT 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}}