{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2903DE4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2903DE4","canonicalUrl":"https://icboms.com/texas-instruments/LM2903DE4","factsUrl":"https://icboms.com/api/mcp/products/LM2903DE4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2903DE4, dual differential comparator, 2V to 36V single supply, ±1V to ±18V dual supply, open-drain/CMOS/TTL output, 8-SOIC, -40°C to 125°C.","salesMarkdown":"## What this comparator does in the circuit It accepts a wide single supply from 2V to 36V or dual supplies from ±1V to ±18V, making it a flexible choice for industrial-level threshold detection, zero-crossing detectors, and window comparators in motor drives, power supplies, and sensor interfaces. Dual-supply operation down to ±1V allows use in split-rail analog front-ends where the common-mode range must include ground. ## Output flexibility and input characteristics The output stage supports CMOS, MOS, open-drain, and TTL logic families — the open-drain option lets multiple comparators wire-OR on a shared pull-up, common in fault monitoring and multiplexed ADC trigger circuits. Maximum input bias current is 0.25µA at 5V, low enough for high-impedance sensor signals without significant offset. Output sink current is rated 20mA typical, sufficient to drive a small relay or LED indicator directly. ## Obsolete — sourcing path and successor options This means TI has discontinued production with no last-time-buy window remaining. The LM2903E4 shares the same 8-SOIC footprint, supply range, temperature grade, and output types — a drop-in swap for the DE4. For dual-sourcing resilience, the industry-standard LM393 (commercial temp) or LM2903 (industrial temp) from multiple manufacturers are also pin-compatible, though the LM393 is limited to 0°C to 70°C.","metaTitle":"TI LM2903DE4 Dual Differential Comparator, 2V to 36V","metaDescription":"Texas Instruments LM2903DE4 dual differential comparator. Wide supply 2V to 36V, industrial temp -40°C to 125°C, open-drain output.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Obsolete","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"Differential","Series":"-","Package":"Tube","Hysteresis":"-","Output Type":"CMOS, MOS, Open-Drain, TTL","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"-","Number of Elements":"2","Base Product Number":"LM2903","Operating Temperature":"-40°C~125°C","Current - Output (Typ)":"20mA","Propagation Delay (Max)":"-","Supplier Device Package":"8-SOIC","Current - Quiescent (Max)":"2.5mA","Current - Input Bias (Max)":"0.25µA @ 5V","Voltage - Input Offset (Max)":"7mV @ 30V","Voltage - Supply, Single/Dual (±)":"2V ~ 36V, ±1V ~ 18V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/a3cec31cf9504607e64368e1c76ab997.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2903DE4/alternatives.json"},"ai":{"faq":[{"question":"What is the replacement for LM2903DE4?","answer":"The industry-standard LM393 (commercial temp) or LM2903 from other manufacturers are also pin-compatible alternatives."},{"question":"Is LM2903DE4 compatible with LM393?","answer":"Yes, the LM2903DE4 is pin-compatible with the LM393. Both are dual differential comparators in the 8-SOIC footprint with the same pinout. For industrial or automotive environments, the LM2903DE4 or its replacement LM2903E4 is the correct choice."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2903DE4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2903DE4 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}}