{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040AIZ-4.1/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040AIZ-4.1-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4040AIZ-4.1-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4040AIZ-4.1%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040AIZ-4.1/NOPB precision shunt voltage reference, fixed 4.096 V output, ±0.1% tolerance, 100 ppm/°C temperature coefficient, 15 mA output current, through-hole TO-92-3 package, industrial temperature range -40°C to 85°C.","salesMarkdown":"## 4.096 V shunt reference — TO-92-3, ±0.1% The Texas Instruments LM4040AIZ-4.1/NOPB is a precision shunt voltage reference delivering a fixed 4.096 V output with ±0.1% initial tolerance. It is designed for applications requiring a stable voltage reference over temperature and load — ADC references, comparator thresholds, power-supply monitoring, and sensor excitation. The shunt topology means it behaves like a two-terminal Zener; no external pass transistor, just a series resistor to set the bias current. The ±0.1% tolerance at 25 °C gives a worst-case output spread of about 4.092 V to 4.100 V — tight enough for most 12-bit ADC references without trimming. Noise is specified at 80 µVrms over a 10 Hz to 10 kHz bandwidth — low enough that it does not limit 12-bit resolution at a 4.096 V full scale (1 LSB ≈ 1 mV). ## Through-hole TO-92-3 — board fit and assembly The TO-92-3 package (TO-226AA) is a three-lead through-hole format. The bulk shipping medium means parts are loose in a bag, not taped — fine for prototype builds and rework but slower for automated insertion. The cathode is the case tab; the anode and reference terminals follow the standard TO-92 pinout for the LM4040 family. ## Sourcing — active, no second-source on record For dual-sourcing, look at the wider LM4040 family (different voltage or tolerance grades) or the LT1004 / MAX6125 series, but verify pin compatibility and tolerance grade against your BOM.","metaTitle":"LM4040AIZ-4.1/NOPB Texas Instruments Shunt Reference","metaDescription":"Texas Instruments LM4040AIZ-4.1/NOPB precision shunt voltage reference. Fixed 4.096 V output, ±0.1% tolerance, 100 ppm/°C drift. Active, through-hole TO-92-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Bulk","Tolerance":"±0.1%","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","Product Status":"Active","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"73 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":"TO-92-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"4.096V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.4300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/db47fc1a31c797b619d88478be755429.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040AIZ-4.1%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the tolerance of LM4040AIZ-4.1/NOPB?","answer":"The initial tolerance is ±0.1%."},{"question":"What is a direct equivalent or replacement for LM4040AIZ-4.1/NOPB?","answer":"The LM4040 family includes other voltage and tolerance options; for a different package or tighter drift, consider the LM4040B or LM4040C grades, but verify pinout and specs against your design."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040AIZ-4.1-NOPB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040AIZ-4.1-NOPB 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}}