{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM4120IM5-5.0","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM4120IM5-5.0","canonicalUrl":"https://icboms.com/texas-instruments/LM4120IM5-5.0","factsUrl":"https://icboms.com/api/mcp/products/LM4120IM5-5.0","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM4120IM5-5.0 series voltage reference, fixed 5V output, ±0.5% tolerance, 50ppm/°C drift, 5mA output, SOT-23-5 package, Bulk.","salesMarkdown":"The LM4120IM5-5.0 is a series voltage reference from Texas Instruments that outputs a fixed 5 V with ±0.5% initial accuracy. That tolerance is tight enough to bias an 8- or 10-bit ADC's Vref pin without external trimming, but for a 12-bit converter the 0.5% error eats about 20 LSBs of the input range — budget that into your system accuracy calculation. For a 5 V rail feeding a 10-bit ADC, that's under 0.5 LSB of drift — acceptable for most control loops. If your design sees wider temperature swings or needs 12-bit stability, look at the LM4120's tighter-graded siblings (0.2% or 20 ppm variants). ## Noise floor and output drive — where the part fits in the signal chain That's clean enough for a 16-bit SAR ADC reference — the noise contribution at 5 V output is roughly 0.3 LSB on a 16-bit converter with a 5 V span. For a 24-bit delta-sigma ADC, you'd want a lower-noise reference like the REF5050. Output current is rated at 5 mA maximum. That drives a handful of op-amp Vref inputs or a single ADC reference pin, but don't plan on powering external loads — the 275 µA quiescent supply current is the reference's own draw, and the output stage isn't designed for bulk current delivery. If your load exceeds 5 mA, buffer it with an op-amp or pick a higher-current reference.","metaTitle":"TI LM4120IM5-5.0 Voltage Reference, 5V ±0.5%, SOT-23-5","metaDescription":"Texas Instruments LM4120IM5-5.0 series voltage reference, fixed 5V output, ±0.5% tolerance, 50ppm/°C drift, SOT-23-5. Active production, available to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"RoHS non-compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"specifications":{"Package":"Bulk","Tolerance":"±0.5%","Output Type":"Fixed","Mounting Type":"Surface Mount","Package / Case":"SC-74A, SOT-753","Reference Type":"Series","Voltage - Input":"2V ~ 12V","lifecycle_stage":"eol_hot","Current - Output":"5 mA","Current - Supply":"275µA","Noise - 0.1Hz to 10Hz":"20µVp-p","Noise - 10Hz to 10kHz":"36µVp-p","Operating Temperature":"-40°C ~ 85°C (TA)","Supplier Device Package":"SOT-23-5","Temperature Coefficient":"50ppm/°C","Voltage - Output (Min/Fixed)":"5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.12","stockQuantity":0,"priceTiers":[{"qty":268,"price":"$1.12000","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/texas-instruments/LM4120IM5-5.0","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM4120IM5-5.0 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}