{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF5050IDGKR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF5050IDGKR","canonicalUrl":"https://icboms.com/texas-instruments/REF5050IDGKR","factsUrl":"https://icboms.com/api/mcp/products/REF5050IDGKR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF5050IDGKR, series voltage reference, fixed 5V output, ±0.05% tolerance, 3ppm/°C temperature coefficient, 3µVp-p noise 0.1–10Hz, 10mA output, -40°C to 125°C, 8-VSSOP package.","salesMarkdown":"## 5V precision anchor for industrial and mixed-signal chains The low-frequency noise is specified at 3µVp-p from 0.1Hz to 10Hz, making this part a candidate for the reference input of a 24-bit SAR or delta-sigma ADC where noise and drift directly limit system resolution. The series topology sinks only 1.2mA supply current while sourcing up to 10mA to the load — enough to drive an ADC reference input and a precision buffer simultaneously. ## What the accuracy specs mean for a 24-bit ADC front end A 24-bit ADC with a 5V reference has an LSB of roughly 298 nV. The 3µVp-p low-frequency noise from the REF5050IDGKR contributes about 10 LSBs of peak-to-peak noise at the reference pin — not negligible, but acceptable for many 24-bit designs if the ADC's own noise dominates. The 3ppm/°C drift translates to 15 µV per 100°C change at the output, which a system calibration routine can correct if the temperature is monitored. The ±0.05% initial accuracy (2.5 mV absolute error) is tighter than most ADC internal references, so the external reference sets the absolute scale.","metaTitle":"REF5050IDGKR Voltage Reference, 5V ±0.05%, 3ppm/°C, 8-VSSOP","metaDescription":"Texas Instruments REF5050IDGKR series voltage reference: 5V fixed output, ±0.05% initial accuracy, 3ppm/°C drift, 3µVp-p noise. Industrial temp -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":"5.3V ~ 18V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"1.2mA","Base Product Number":"REF5050","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)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.1900","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF5050IDGKR/alternatives.json"},"ai":{"faq":[{"question":"How accurate is the REF5050IDGKR voltage reference?","answer":"The REF5050IDGKR has a ±0.05% initial accuracy on the 5V output and a 3ppm/°C temperature coefficient. Low-frequency noise is 3µVp-p from 0.1Hz to 10Hz. These specs make it suitable as a reference for precision ADCs and DACs in industrial and instrumentation applications."},{"question":"Is the REF5050IDGKR suitable for a 24-bit ADC reference?","answer":"Yes, the 3µVp-p noise and 3ppm/°C drift are in the range needed for many 24-bit ADC designs. The ±0.05% initial accuracy is tighter than most on-chip references. The 10mA output current can drive the ADC reference input plus an external buffer if needed."},{"question":"What is the difference between REF5050IDGKR and REF5050AIDGKR?","answer":"The REF5050AIDGKR is a higher-grade variant with tighter initial accuracy (typically ±0.05% vs. the base grade) and possibly a narrower temperature coefficient. The REF5050IDGKR is the standard industrial-grade version. Both share the same 8-VSSOP package and pinout, so they are footprint-compatible. The A-grade is specified for applications requiring the best absolute accuracy."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF5050IDGKR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF5050IDGKR 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}}