{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040C41IDBZR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040C41IDBZR","canonicalUrl":"https://icboms.com/texas-instruments/LM4040C41IDBZR","factsUrl":"https://icboms.com/api/mcp/products/LM4040C41IDBZR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040C41IDBZR precision shunt voltage reference, fixed 4.096V output, ±0.5% tolerance, 80µVrms noise, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"## 4.096V fixed shunt — what it buys the ADC rail The LM4040C41IDBZR is a precision shunt voltage reference from Texas Instruments, fixed at 4.096V with ±0.5% initial tolerance. That 4.096V output is a natural fit for 12-bit and 16-bit ADC reference inputs — the 1 mV per LSB mapping at 12 bits simplifies the math and keeps the full-scale range just under a typical 5V supply rail. As a shunt reference, it behaves like a Zener diode: it requires a series resistor from the supply and draws cathode current down to 88 µA. The 15 mA maximum output current limits the load it can drive directly — plan a buffer amplifier if the reference input of the ADC sinks more than a few hundred microamps. ## Noise and drift — the precision metrics Output noise is specified at 80 µVrms over the 10 Hz to 10 kHz band, which is low enough to not dominate the noise floor of a 12-bit ADC with a 4.096V reference (the LSB is 1 mV). ## Package and procurement posture The part comes in a standard SOT-23-3 package (also listed as TO-236-3 / SC-59), surface-mount only.","metaTitle":"LM4040C41IDBZR Shunt Reference, 4.096V ±0.5%, SOT-23-3","metaDescription":"Texas Instruments LM4040C41IDBZR precision shunt voltage reference, fixed 4.096V output, ±0.5% tolerance, 80µVrms noise, SOT-23-3, active lifecycle.","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":"±0.5%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"88 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"80µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.9300","priceTiers":null},"links":{"datasheetUrl":null,"sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040C41IDBZR/alternatives.json"},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040C41IDBZR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040C41IDBZR 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}}