{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF5040IDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF5040IDRG4","canonicalUrl":"https://icboms.com/texas-instruments/REF5040IDRG4","factsUrl":"https://icboms.com/api/mcp/products/REF5040IDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF5040IDRG4, series voltage reference, fixed 4.096V output, ±0.05% tolerance, 3 ppm/°C drift, 3µVp-p noise, 10 mA output, -40°C to 125°C, 8-SOIC.","salesMarkdown":"## 4.096V fixed reference — the ADC/DAC anchor The Texas Instruments REF5040IDRG4 is a precision series voltage reference that puts out a fixed 4.096V — a common full-scale voltage for 12-bit and 16-bit ADCs and DACs that simplifies the math (1 LSB = 1 mV for a 12-bit converter). The ±0.05% initial tolerance means you can skip a trim pot in most 12-bit systems and still stay within the accuracy budget. ## Noise and drift — the stability story For a 4.096V reference feeding a 16-bit ADC, 3 µVp-p is about 0.2 LSB of noise, which keeps the noise budget clean without external filtering. Temperature drift is 3 ppm/°C typical. Input voltage range is 4.296V to 18V, so it runs from a 5V rail with 200 mV headroom or straight off a 12V or 15V supply. The 10 mA output current can bias multiple ADC reference inputs or a small resistive load without a buffer. Quiescent supply current is 1.2 mA typical — low enough that the reference itself does not dominate the power budget in a battery-powered or loop-powered design.","metaTitle":"REF5040IDRG4 Voltage Reference, 4.096V ±0.05%, 3 ppm/°C","metaDescription":"Texas Instruments REF5040IDRG4 series voltage reference, fixed 4.096V output, ±0.05% tolerance, 3 ppm/°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)","Tolerance":"±0.05%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","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-SOIC","Temperature Coefficient":"3ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF5040IDRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the difference between REF5040IDRG4 and REF5040IDR?","answer":"The only difference is the packaging suffix: the \"G4\" in REF5040IDRG4 indicates Tape & Reel packaging, while REF5040IDR typically ships in tubes or other formats. The die, the electrical specs, and the temperature range are identical between the two."},{"question":"Can REF5040IDRG4 be used as a drop-in replacement for other 4.096V references?","answer":"Pin-compatibility depends on the specific reference. The REF5040 uses a standard series-reference pinout (VIN, GND, VOUT, TRIM/NC) in an SOIC-8 package. It is a direct swap for other Texas Instruments REF50xx series parts in the same package, but verify the pinout against any non-TI reference before committing the board."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF5040IDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF5040IDRG4 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}}