{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4040EEM3-2.0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4040EEM3-2.0","canonicalUrl":"https://icboms.com/texas-instruments/LM4040EEM3-2.0","factsUrl":"https://icboms.com/api/mcp/products/LM4040EEM3-2.0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4040EEM3-2.0 precision shunt voltage reference, fixed 2.048V output, ±2% tolerance, 150ppm/°C temperature coefficient, SOT-23-3 package, Tape & Reel.","salesMarkdown":"## 2.048V shunt reference — the precision anchor The LM4040EEM3-2.0 is a fixed 2.048V shunt voltage reference from Texas Instruments, housed in a SOT-23-3 package. It delivers a stable 2.048V output with ±2% initial tolerance and a 150ppm/°C temperature coefficient, making it suitable for precision ADC references, comparator thresholds, and portable instrumentation where a low-drift, low-power bias rail is needed. The 2.048V fixed output is the nominal reference voltage; the ±2% tolerance means the actual output at 25°C can range from 2.007V to 2.089V. For a 12-bit ADC with a 2.048V reference, that translates to a gain error of roughly ±8 LSBs before any temperature drift is factored in. As a shunt reference, the LM4040EEM3-2.0 sinks current through a series resistor from the supply rail. The 73 µA minimum cathode current sets the floor for the bias resistor calculation; the 15 mA maximum output current defines the load it can drive while staying within regulation. Output noise is specified at 35 µVrms over a 10 Hz to 10 kHz bandwidth — clean enough for most 10- to 12-bit ADC reference inputs without additional filtering. ## Obsolete — sourcing reality and the replacement path Sourcing for the LM4040EEM3-2.0 runs through independent distribution and surplus channels.","metaTitle":"LM4040EEM3-2.0 Shunt Voltage Reference, 2.048V, SOT-23-3","metaDescription":"LM4040EEM3-2.0 precision 2.048V shunt reference, ±2% tolerance, 150ppm/°C drift, SOT-23-3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Series":"-","Package":"Tape & Reel (TR)","Tolerance":"±2%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Product Status":"Obsolete","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":"35µVrms","Operating Temperature":"-40°C~125°C(TA)","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"150ppm/°C","Voltage - Output (Min/Fixed)":"2.048V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.1800","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/8c40cf163b5cda64fd88ad5c9f25fe6d.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4040EEM3-2.0/alternatives.json"},"ai":{"faq":[{"question":"Can I use the LM4040AEM3-2.0 instead of the LM4040EEM3-2.0?","answer":"Yes, the LM4040AEM3-2.0 is a pin-compatible drop-in replacement in the same SOT-23-3 package with the same 2.048V output. The key difference is tighter ±0.1% tolerance versus the ±2% of the E-grade."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4040EEM3-2.0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4040EEM3-2.0 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}}