{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM311DR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM311DR","canonicalUrl":"https://icboms.com/texas-instruments/LM311DR","factsUrl":"https://icboms.com/api/mcp/products/LM311DR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM311DR differential comparator, General Purpose type, MOS/Open-Collector/Open-Emitter/TTL output, 8-SOIC (0.154\", 3.90mm Width) surface-mount package, Tape & Reel.","salesMarkdown":"## Supply range and output flexibility The LM311DR: Its output stage can be configured as MOS, open-collector, open-emitter, or TTL, letting it interface directly with downstream logic families or drive loads up to 50 mA without a buffer transistor. ## Input offset and bias — signal-chain fit Quiescent current maxes at 7.5 mA, making it suitable for always-on comparator banks in multi-channel monitoring boards where per-channel power budget is under 10 mA. RoHS3 compliant, with no REACH or UL certification cited in the available documentation; the base product number is LM311, and the DR suffix denotes the 8-SOIC tape-and-reel variant.","metaTitle":"Texas Instruments LM311DR Differential Comparator, 8-SOIC","metaDescription":"Active production LM311DR differential comparator from TI. General-purpose, open-collector/emitter output, 3.5V-30V supply. 8-SOIC package. RoHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Hysteresis":"-","Output Type":"MOS, Open-Collector, Open-Emitter, TTL","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"-","Number of Elements":"1","Base Product Number":"LM311","Operating Temperature":"0°C~70°C","Current - Output (Typ)":"-","Propagation Delay (Max)":"-","Supplier Device Package":"8-SOIC","Current - Quiescent (Max)":"7.5mA","Current - Input Bias (Max)":"0.25µA @ ±15V","Voltage - Input Offset (Max)":"7.5mV @ ±15V","Voltage - Supply, Single/Dual (±)":"3.5V ~ 30V, ±1.75V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4400","priceTiers":[{"qty":1,"price":"$0.44000","currency":"USD"},{"qty":10,"price":"$0.35900","currency":"USD"},{"qty":25,"price":"$0.32800","currency":"USD"},{"qty":100,"price":"$0.24420","currency":"USD"},{"qty":250,"price":"$0.22132","currency":"USD"},{"qty":500,"price":"$0.18316","currency":"USD"},{"qty":1000,"price":"$0.13738","currency":"USD"},{"qty":2500,"price":"$0.12593","currency":"USD"},{"qty":5000,"price":"$0.11830","currency":"USD"},{"qty":12500,"price":"$0.11066","currency":"USD"},{"qty":25000,"price":"$0.10800","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/ec8e2a5499b559b49be1c25f16bcf454.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM311DR/alternatives.json"},"ai":{"faq":[{"question":"When sourcing LM311DR, what's the closest functional second-source — LP311DR?","answer":"The LP311DR is a pin-compatible differential comparator in the same 8-SOIC package and commercial temperature range, but its output is limited to open-collector and open-emitter (no MOS or TTL), and its supply voltage range is 3.5 V to 30 V with a 7.5 mV max input offset — check the output drive requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM311DR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM311DR 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}}