{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4050CEX3-3.0+T","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LM4050CEX3-3.0T","canonicalUrl":"https://icboms.com/analog-devices/LM4050CEX3-3.0T","factsUrl":"https://icboms.com/api/mcp/products/LM4050CEX3-3.0%2BT","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LM4050CEX3-3.0+T precision shunt voltage reference, fixed 3.0 V output, ±0.5% tolerance, 50ppm/°C tempco, SC-70-3 surface-mount package, Tape & Reel.","salesMarkdown":"## Precision 3.0 V shunt reference in SC-70-3 The LM4050CEX3-3.0+T: The shunt topology means it behaves like a Zener: you bias it through a series resistor from a higher rail, and the reference regulates by shunting current to ground. That 67 µA minimum cathode current sets the floor on the bias resistor — go lower and the reference drops out of regulation. Packaged in SC-70-3 (SOT-323 footprint), it takes up about 2.0 mm × 2.1 mm of board area — smaller than SOT-23, so it fits in dense mixed-signal chains where board space is the constraint. The 15 mA maximum output current limits the load you can drive directly; for anything heavier, buffer it with an op-amp or use a series reference instead. ## Noise and drift — the real spec for ADC bias Wideband noise from 10 Hz to 10 kHz is specified at 45 µVrms — that is about 15 ppm of the 3.0 V output. For a 12-bit ADC with a 3.0 V reference, 1 LSB at 12 bits is 732 µV, so the reference noise contributes roughly 6% of an LSB; for 16-bit (46 µV LSB), it dominates the noise budget and you'd want a lower-noise reference or post-filtering. That is within a quarter LSB at 12 bits but eats over 3 LSB at 16 bits — so this part is a solid fit for 10- to 12-bit precision applications but marginal for 16-bit without system calibration. ## Active production, ROHS3, industrial temp range Supplied in Tape & Reel (TR) or Cut Tape (CT) — the reel format is standard for pick-and-place assembly; cut tape suits prototyping or small-batch builds.","metaTitle":"LM4050CEX3-3.0+T Analog Devices Shunt Reference, 3.0 V ±0.5%","metaDescription":"LM4050CEX3-3.0+T precision shunt voltage reference, 3.0 V fixed output, ±0.5% tolerance, 50ppm/°C drift, SC-70-3. Active production, ROHS3 compliant.","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":"±0.5%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-70, SOT-323","Reference Type":"Shunt","lifecycle_stage":"eol_hot","Current - Output":"15 mA","Current - Cathode":"67 µA","Noise - 10Hz to 10kHz":"45µVrms","Operating Temperature":"-40°C ~ 125°C (TA)","Supplier Device Package":"SC-70-3","Temperature Coefficient":"50ppm/°C","Voltage - Output (Min/Fixed)":"3V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.3","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.30000","currency":"USD"},{"qty":10,"price":"$1.16200","currency":"USD"},{"qty":25,"price":"$1.10280","currency":"USD"},{"qty":100,"price":"$0.90600","currency":"USD"},{"qty":250,"price":"$0.84688","currency":"USD"},{"qty":500,"price":"$0.74840","currency":"USD"},{"qty":1000,"price":"$0.59085","currency":"USD"},{"qty":2500,"price":"$0.55146","currency":"USD"},{"qty":5000,"price":"$0.52389","currency":"USD"},{"qty":12500,"price":"$0.50419","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LM4050CEX3-3.0T","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LM4050CEX3-3.0T when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}