{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4041DIDBZTG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4041DIDBZTG4","canonicalUrl":"https://icboms.com/texas-instruments/LM4041DIDBZTG4","factsUrl":"https://icboms.com/api/mcp/products/LM4041DIDBZTG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4041DIDBZTG4, adjustable shunt voltage reference, 1.233 V to 10 V output, ±1% tolerance, 80 µA min cathode current, 12 mA output, SOT-23-3 package, -40°C to 85°C.","salesMarkdown":"## What this shunt reference does — and the one spec that catches people out Unlike a series reference, it sinks current through a cathode to regulate its output voltage, set by two external resistors. The output adjusts from a minimum of 1.233 V up to 10 V, making it a flexible bias source for ADC references, comparator thresholds, or current-loop supplies. The catch with any shunt reference: you must bias it with a resistor from the supply to the cathode, and that resistor must pass at least 80 µA (the minimum cathode current) plus the load current to keep regulation. At 12 mA maximum output, the resistor drop and power dissipation need a quick calculation — the SOT-23-3 package handles it, but don't assume zero-load operation. ## Tolerance and drift — where the ±1% matters Initial tolerance is ±1% at 25°C. For a 2.5 V output, that's ±25 mV — fine for an 8-bit ADC reference or a comparator threshold where a few millivolts of offset are acceptable. If your design needs 0.1% or better, step up to the LM4041A or LM4041B grades. Temperature coefficient is 150 ppm/°C typical. Not a precision metrology part, but stable enough for industrial control loops and data-acquisition front ends. ## Noise floor for sensitive analog rails That's low enough to feed the reference input of a 12-bit SAR ADC without the noise degrading the LSB — the noise contribution is well below 1 LSB at 2.5 V full scale. ## Package and rework — SOT-23-3 is a friend under the hot air The SOT-23-3 package (also known as TO-236-3 or SC-59) is a three-pin device with a small footprint — about 2.9 mm x 1.3 mm. The small thermal mass means it reflows easily with a hot-air station at 300°C for 10-15 seconds. No exposed pad, no underfill needed. Just watch the orientation: the package has a chamfer on pin 1 side. For volume production, the base part number LM4041 spans multiple tolerance grades (A/B/C/D) and package options, so dual-sourcing across the family is straightforward — just match the tolerance and package code.","metaTitle":"LM4041DIDBZTG4 Adjustable Shunt Voltage Reference, ±1%","metaDescription":"Texas Instruments LM4041DIDBZTG4 adjustable shunt reference, 1.233V to 10V output, ±1% tolerance, 80 µA min cathode current, SOT-23-3 package.","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)","Tolerance":"±1%","Output Type":"Adjustable","Mounting Type":"Surface Mount","Package / Case":"TO-236-3, SC-59, SOT-23-3","Reference Type":"Shunt","Voltage - Input":"-","lifecycle_stage":"eol_hot","Current - Output":"12 mA","Current - Supply":"-","Current - Cathode":"80 µA","Base Product Number":"LM4041","Noise - 0.1Hz to 10Hz":"-","Noise - 10Hz to 10kHz":"20µVrms","Operating Temperature":"-40°C~85°C(TA)","Voltage - Output (Max)":"10 V","Supplier Device Package":"SOT-23-3","Temperature Coefficient":"150ppm/°C","Voltage - Output (Min/Fixed)":"1.233V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/50fc5e198ec353cb298db1954beef248.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM4041DIDBZTG4/alternatives.json"},"ai":{"faq":[{"question":"Is LM4041DIDBZTG4 a precision voltage reference?","answer":"It is a precision shunt reference with ±1% initial tolerance and 150 ppm/°C temperature drift. For applications needing better than 0.5% accuracy, consider the LM4041A or LM4041B grades."},{"question":"What is the closest pin-compatible alternative to LM4041DIDBZTG4?","answer":"The LM4041 family includes multiple tolerance grades (A/B/C/D) in the same SOT-23-3 package. The LM4041AIDBZTG4 offers tighter ±0.1% tolerance; the LM4041CIDBZTG4 offers ±0.5%. All are pin-compatible and share the same adjustable output range."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM4041DIDBZTG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4041DIDBZTG4 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}}