{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"REF2940AIDBZT","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"REF2940AIDBZT","canonicalUrl":"https://icboms.com/texas-instruments/REF2940AIDBZT","factsUrl":"https://icboms.com/api/mcp/products/REF2940AIDBZT","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments REF2940AIDBZT, series voltage reference, fixed 4.096 V output, ±2% tolerance, 59 µA supply current, SOT-23-3 package, -40°C to 125°C operating temperature.","salesMarkdown":"## Fixed 4.096 V reference in a SOT-23-3 The Texas Instruments REF2940AIDBZT is a series voltage reference that outputs a fixed 4.096 V with ±2% initial tolerance. It draws 59 µA quiescent supply current and operates over -40°C to 125°C, making it a fit for industrial sensor interfaces, data-acquisition front-ends, and automotive modules where a stable 4.096 V rail is needed for an ADC or DAC reference. The SOT-23-3 package (SC-59, TO-236-3 compatible) keeps board area small and suits reflow assembly. ## Active lifecycle — no LTB concern The REF2940AIDBZT carries an active lifecycle status and is ROHS3 compliant. There is no last-time-buy notice or obsolescence risk for this order code. It can be specified into new designs without planning for an end-of-life migration.","metaTitle":"REF2940AIDBZT 4.096V Series Voltage Reference, SOT-23-3","metaDescription":"TI REF2940AIDBZT series voltage reference, fixed 4.096 V output, ±2% tolerance, 59 µA supply, -40°C to 125°C, SOT-23-3. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Tape & Reel (TR); Cut Tape (CT)","Tolerance":"±2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Series","Voltage - Input":"4.146V ~ 5.5V","lifecycle_stage":"eol_hot","Current - Output":"25 mA","Current - Supply":"59µA","Noise - 0.1Hz to 10Hz":"45µVp-p","Noise - 10Hz to 10kHz":"128µVrms","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.54","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.54000","currency":"USD"},{"qty":10,"price":"$1.37600","currency":"USD"},{"qty":25,"price":"$1.30600","currency":"USD"},{"qty":100,"price":"$1.07280","currency":"USD"},{"qty":250,"price":"$1.00288","currency":"USD"},{"qty":500,"price":"$0.88626","currency":"USD"},{"qty":1250,"price":"$0.69968","currency":"USD"},{"qty":2500,"price":"$0.66008","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/e9ad5b6a3b8d29039572b3f63723876a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is REF2940AIDBZT a drop-in replacement for REF2940AIDBZ?","answer":"The REF2940AIDBZT and REF2940AIDBZ share the same SOT-23-3 package and fixed 4.096 V output. The 'T' suffix typically indicates Tape & Reel packaging. Mechanically and functionally they are the same die; the T suffix is a reel-pack option, not a specification change. Verify the reel quantity matches your line needs."},{"question":"What is the output tolerance of REF2940AIDBZT over temperature?","answer":"The initial tolerance is ±2% at 25°C. The temperature coefficient is 100 ppm/°C, which adds drift of roughly ±4 mV over the full -40°C to 125°C range. For tighter drift, a 20 ppm/°C reference like the LM4132AMF-4.1/NOPB would be a closer match."},{"question":"What are the alternatives to REF2940AIDBZT if it goes end of life?","answer":"The LM4132AMF-4.1/NOPB is a functional alternative with the same 4.096 V output in a SOT-23-3 package. It offers tighter tolerance (0.05%) and lower drift (20 ppm/°C) but draws higher supply current (100 µA). No EOL notice exists for the REF2940AIDBZT today."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/REF2940AIDBZT","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/REF2940AIDBZT when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}