{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF3130AIDBZRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF3130AIDBZRG4","canonicalUrl":"https://icboms.com/texas-instruments/REF3130AIDBZRG4","factsUrl":"https://icboms.com/api/mcp/products/REF3130AIDBZRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF3130AIDBZRG4 series voltage reference, 3V fixed output, ±0.2% tolerance, 20ppm/°C drift, 135µA supply, SOT-23-3 package, -40°C to 125°C.","salesMarkdown":"## 3 V fixed reference for precision ADC and sensor biasing The REF3130AIDBZRG4 is a 3 V precision series voltage reference from Texas Instruments, delivering a fixed 3 V output with ±0.2% initial accuracy and a 20 ppm/°C temperature coefficient. It is designed to bias precision ADCs, DACs, and sensor signal chains in industrial and automotive environments spanning -40°C to 125°C. ## Noise floor and drift — what they mean for ADC resolution Low-frequency noise is specified at 39 µVp-p over 0.1 Hz to 10 Hz, and broadband noise at 57 µVrms over 10 Hz to 10 kHz. For a 12-bit ADC with a 3 V reference, the LSB is 732 µV — the reference noise contributes less than 8% of one LSB, leaving headroom for system noise. The 20 ppm/°C drift translates to 60 µV shift over a 100°C swing, which a 12-bit system absorbs without calibration; a 16-bit system with 46 µV LSBs would need periodic trim. The 10 mA output current capability is enough to drive the reference input of most SAR ADCs and the external REF pin of a microcontroller's ADC, but not enough to power a sensor bridge directly — that load belongs on a separate regulator. ## Input headroom and dropout margin Input voltage range runs from 3.05 V to 5.5 V. On a 3.3 V rail, the 300 mV dropout is comfortable; on a 5 V rail, the 2 V headroom keeps the series pass element in its linear region across load and temperature. The series architecture means no external resistor is needed — just a 0.1 µF bypass cap on the input and a 1 µF cap on the output for stability. ## SOT-23-3 footprint and tape-and-reel delivery Housed in a 3-pin SOT-23-3 (TO-236-3 / SC-59) package, the REF3130AIDBZRG4 occupies under 3 mm² of board area.","metaTitle":"REF3130AIDBZRG4 3V Precision Voltage Reference, ±0.2%","metaDescription":"Texas Instruments REF3130AIDBZRG4 series voltage reference, 3V fixed output, ±0.2% tolerance, 20ppm/°C drift, SOT-23-3.","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":"±0.2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Series","Voltage - Input":"3.05V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"10 mA","Current - Supply":"135µA","Base Product Number":"REF3130","Noise - 0.1Hz to 10Hz":"39µVp-p","Noise - 10Hz to 10kHz":"57µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"20ppm/°C","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.1800","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/REF3130AIDBZRG4/alternatives.json"},"ai":{"faq":[{"question":"What is the accuracy and temperature drift of REF3130AIDBZRG4?","answer":"Initial accuracy is ±0.2%, and the temperature coefficient is 20 ppm/°C."},{"question":"How much current can REF3130AIDBZRG4 source?","answer":"The reference can source up to 10 mA. This is sufficient to drive the reference input of most SAR ADCs and microcontroller ADC reference pins, but not enough to power external sensor bridges or heavy loads."},{"question":"What package does REF3130AIDBZRG4 come in?","answer":"It is supplied in a 3-pin SOT-23-3 surface-mount package (also listed as TO-236-3 / SC-59). The tape-and-reel format is intended for automated assembly."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF3130AIDBZRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF3130AIDBZRG4 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}}