{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF5040MDREP","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF5040MDREP","canonicalUrl":"https://icboms.com/texas-instruments/REF5040MDREP","factsUrl":"https://icboms.com/api/mcp/products/REF5040MDREP","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF5040MDREP precision series voltage reference, 4.096 V fixed output, ±0.05% tolerance, 5 ppm/°C temperature coefficient, 12 µVp-p noise (0.1 Hz to 10 Hz), 10 mA output, -55°C to 125°C, 8-SOIC.","salesMarkdown":"## 4.096 V reference for military-temperature precision chains For a 16-bit ADC with a 4.096 V reference, one LSB is about 62.5 µV; this reference contributes roughly one-fifth of an LSB of peak-to-peak noise, leaving the rest of the noise budget for the ADC, front-end amplifier, and supply ripple. The 5 ppm/°C drift translates to about 20 µV per degree Celsius at the output — over the full 180°C span of the military range, the output shifts by roughly 3.7 mV, or about 0.09% of the nominal voltage. That is tight enough that a system designer can skip the external trim pot and still hold 12-bit accuracy across temperature. ## Supply headroom and output drive The input voltage range is 4.296 V to 18 V, so the reference needs at least 200 mV of headroom above the 4.096 V output. That 200 mV dropout is typical for a series bandgap reference — it means the reference can run from a 5 V rail with margin, or from a higher unregulated supply if the system already has one. The 10 mA output current rating is enough to drive the reference input of several ADCs or DACs in parallel, plus a small resistive divider for a test point, without an external buffer. The 1.25 mA quiescent supply current is the price paid for that drive capability; in a battery-powered instrument drawing tens of milliamps total, this reference accounts for a few percent of the system power. The surface-mount package means the reference can be reflow-soldered alongside the rest of the board; no hand-soldering or through-hole assembly is needed.","metaTitle":"REF5040MDREP 4.096V Series Voltage Reference, ±0.05%","metaDescription":"Texas Instruments REF5040MDREP precision series voltage reference: 4.096 V fixed output, ±0.05% tolerance, 5 ppm/°C drift, -55°C to 125°C range.","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-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","Reference Type":"Series","Voltage - Input":"4.296V ~ 18V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"1.25mA","Base Product Number":"REF5040","Noise - 0.1Hz to 10Hz":"12µVp-p","Noise - 10Hz to 10kHz":"-","Operating Temperature":"-55°C~125°C(TA)","Supplier Device Package":"8-SOIC","Temperature Coefficient":"5ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$12.2200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/db086d261922de7a70e7f7e2d7c7e788.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF5040MDREP/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF5040MDREP","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF5040MDREP 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}}