{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LP311D","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LP311D","canonicalUrl":"https://icboms.com/texas-instruments/LP311D","factsUrl":"https://icboms.com/api/mcp/products/LP311D","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LP311D differential comparator, single element, open-collector/open-emitter output, 3.5V to 30V single supply, 300µA quiescent current, 8-SOIC surface-mount package, commercial temperature range 0°C to 70°C.","salesMarkdown":"## Differential comparator with flexible output stage The Texas Instruments LP311D is a single-element differential comparator in an 8-SOIC package. Its open-collector and open-emitter output stage lets you wire outputs in a wired-OR configuration or shift logic levels to a different supply rail — useful when the comparator output must drive a load referenced to a voltage other than its own supply. Supply range covers 3.5 V to 30 V on a single rail, or ±1.75 V to ±15 V with dual supplies. Quiescent current maxes at 300 µA — not a micropower part, but low enough for line-powered or intermittently battery-backed boards. Input bias current is 0.1 µA maximum at ±15 V, and input offset voltage is 7.5 mV maximum at ±15 V. ## Temperature grade and environment Rated for 0°C to 70°C commercial temperature range. This limits the LP311D to indoor, controlled environments — office equipment, bench instruments, appliance control boards, and similar settings where the ambient temperature stays within that window. Not rated for automotive under-hood or outdoor industrial enclosures without additional thermal management. ## Lifecycle and compliance ROHS3 compliant. ## Sourcing reality An active, widely used comparator in a standard SOIC-8 footprint. No single-source risk — multiple channels carry this part.","metaTitle":"LP311D Differential Comparator, Open-Collector/Emitter","metaDescription":"LP311D differential comparator from Texas Instruments. Single element, open-collector/open-emitter output, 3.5V–30V supply. 300µA quiescent current.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Differential","Package":"Tube","Output Type":"Open-Collector, Open-Emitter","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Number of Elements":"1","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"8-SOIC","Current - Quiescent (Max)":"300µA","Current - Input Bias (Max)":"0.1µA @ ±15V","Voltage - Input Offset (Max)":"7.5mV @ ±15V","Voltage - Supply, Single/Dual (±)":"3.5V ~ 30V, ±1.75V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.71","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$1.71000","currency":"USD"},{"qty":10,"price":"$1.52600","currency":"USD"},{"qty":25,"price":"$1.44840","currency":"USD"},{"qty":100,"price":"$1.18970","currency":"USD"},{"qty":250,"price":"$1.11216","currency":"USD"},{"qty":500,"price":"$0.98284","currency":"USD"},{"qty":1000,"price":"$0.77592","currency":"USD"},{"qty":2500,"price":"$0.73200","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/da25d2de21eb4ce7bf5eeac360721a80.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LP311D a replacement for LM311?","answer":"The LP311D shares the same differential comparator function and open-collector/open-emitter output as the LM311 family. Check pin compatibility and your operating temperature requirements before using it as a replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LP311D","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LP311D when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}