{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040BIZ-2.0/NOPB","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040BIZ-2.0-NOPB","canonicalUrl":"https://icboms.com/texas-instruments/LM4040BIZ-2.0-NOPB","factsUrl":"https://icboms.com/api/mcp/products/LM4040BIZ-2.0%2FNOPB","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040BIZ-2.0/NOPB precision shunt voltage reference, 2.048V fixed output, ±0.2% tolerance, 35µVrms noise, 100ppm/°C drift, TO-92-3 through-hole, -40°C to 85°C.","salesMarkdown":"## 2.048 V shunt reference with ±0.2% initial accuracy The Texas Instruments LM4040BIZ-2.0/NOPB is a precision shunt voltage reference delivering a fixed 2.048 V output with a ±0.2% initial tolerance. This is a B-grade device in the LM4040 family, intended for applications requiring a stable, low-noise voltage reference without the complexity of a series regulator topology. The shunt architecture means the part operates as a two-terminal device — it sinks current through the cathode to regulate the output voltage, with a minimum cathode current of 65 µA and a maximum output current of 15 mA. The 35 µVrms noise over 10 Hz to 10 kHz makes it suitable for biasing precision ADCs or sensor bridges where low-frequency noise matters. The TO-92-3 through-hole package (TO-226AA) is a legacy form factor — board layouts must accommodate the leaded footprint. Procurement for this part runs through the surplus and independent distribution channel. For a pin-compatible replacement within the same family, the designer should evaluate the current-production LM4040 variants in the same TO-92-3 package — the LM4040AIM3-2.0 or LM4040CIM3-2.0 are common alternatives, though tolerance grades and temperature ranges differ. Confirm the exact parametric match against the BOM requirements before substituting. ## TO-92-3 through-hole — legacy footprint considerations The TO-92-3 (TO-226AA) package is a three-lead through-hole form factor with 0.100-inch (2.54 mm) lead spacing. This package is not suitable for high-density surface-mount designs; it requires a drilled PCB with plated through-holes and is typically hand-soldered or wave-soldered. This is consistent with through-hole components and does not affect the electrical performance, but it does affect automated pick-and-place handling: the part is not feeder-compatible without manual loading or a tube feeder.","metaTitle":"LM4040BIZ-2.0/NOPB Shunt Voltage Reference, 2.048V ±0.2%","metaDescription":"Texas Instruments LM4040BIZ-2.0/NOPB precision shunt reference, 2.048V fixed output, ±0.2% tolerance, 35µVrms noise, TO-92-3 through-hole.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Bulk","Tolerance":"±0.2%","Output Type":"Fixed","Mounting Type":"Through Hole","Package / Case":"TO-226-3, TO-92-3 (TO-226AA)","Product Status":"Obsolete","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Supply":"-","Current - Cathode":"65 µA","Base Product Number":"LM4040","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"35µVrms","Operating Temperature":"-40°C~85°C(TA)","Supplier Device Package":"TO-92-3","Temperature Coefficient":"100ppm/°C","Voltage - Output (Min/Fixed)":"2.048V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8c40cf163b5cda64fd88ad5c9f25fe6d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040BIZ-2.0%2FNOPB/alternatives.json"},"ai":{"faq":[{"question":"What is the exact replacement for LM4040BIZ-2.0/NOPB?","answer":"For a pin-compatible replacement within the same LM4040 family in the TO-92-3 package, consider the LM4040AIM3-2.0 or LM4040CIM3-2.0 — these are current-production variants, but their tolerance grades and temperature ranges differ from the B-grade. Verify the parametric match against your BOM requirements before substituting."},{"question":"What is the tolerance and output voltage of LM4040BIZ-2.0?","answer":"The LM4040BIZ-2.0/NOPB delivers a fixed 2.048 V output with a ±0.2% initial tolerance. This is the B-grade accuracy tier in the LM4040 family."},{"question":"How does LM4040BIZ-2.0 compare to other 2.0V shunt references?","answer":"The LM4040BIZ-2.0/NOPB sits in the precision tier with ±0.2% tolerance and 100 ppm/°C drift. Many general-purpose shunt references offer ±1% or ±2% tolerance with higher drift. The 35 µVrms noise floor is competitive for a shunt reference in this voltage class. The trade-off is the obsolete status and the through-hole package — newer surface-mount alternatives (e.g., LM4040 in SOT-23) offer similar electrical performance in a smaller footprint."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040BIZ-2.0-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/LM4040BIZ-2.0-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}}