{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM311DRE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM311DRE4","canonicalUrl":"https://icboms.com/texas-instruments/LM311DRE4","factsUrl":"https://icboms.com/api/mcp/products/LM311DRE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM311DRE4, General Purpose comparator, single element, MOS/Open-Collector/Open-Emitter/TTL output, 8-SOIC surface mount, 0°C~70°C, 3.5V~30V supply.","salesMarkdown":"The Texas Instruments LM311DRE4 is a general-purpose comparator in an 8-SOIC package, designed for single or dual supply operation from 3.5 V to 30 V (or ±1.75 V to ±15 V). It outputs MOS, open-collector, open-emitter, or TTL-compatible levels, making it a flexible choice for level detection, zero-crossing detectors, and pulse-width modulators in commercial-temperature (0°C to 70°C) environments. ## Supply range and output flexibility The wide supply range — 3.5 V to 30 V single, or ±1.75 V to ±15 V dual — lets this comparator work across 5 V logic rails, 12 V industrial supplies, or ±15 V op-amp rails without a separate regulator. The output stage can be wired as open-collector, open-emitter, or TTL, which directly drives logic inputs or relays without extra level shifting. ## Package and sourcing note The LM311DRE4 is the tape-and-reel variant of the standard LM311 in an 8-SOIC package. The base product number is LM311, so any LM311-series datasheet applies — confirm the suffix for packaging (DRE4 = tape and reel).","metaTitle":"LM311DRE4 General Purpose Comparator, 7.5mA, 8-SOIC","metaDescription":"Texas Instruments LM311DRE4 general-purpose comparator in 8-SOIC. Single/dual supply 3.5V–30V, 7.5mA quiescent, 0°C–70°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"-","Package":"Tape & Reel (TR)","Hysteresis":"-","Output Type":"MOS, Open-Collector, Open-Emitter, TTL","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","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":"$0.4500","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/ec8e2a5499b559b49be1c25f16bcf454.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM311DRE4/alternatives.json"},"ai":{"faq":[{"question":"Is the LM311DRE4 the same as the LM311?","answer":"The LM311DRE4 is a specific ordering code within the LM311 family. The base electrical specifications are identical; the DRE4 suffix designates the 8-SOIC surface-mount package supplied in tape and reel. The standard LM311 may also be available in other packages (e.g., DIP), so verify the package code on your BOM line."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM311DRE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM311DRE4 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}}