{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2903VQDRG4Q1","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2903VQDRG4Q1","canonicalUrl":"https://icboms.com/texas-instruments/LM2903VQDRG4Q1","factsUrl":"https://icboms.com/api/mcp/products/LM2903VQDRG4Q1","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2903VQDRG4Q1, dual differential comparator, automotive AEC-Q100, 2V to 36V supply, open-collector/CMOS/TTL output, 8-SOIC, -40°C to 125°C.","salesMarkdown":"## Dual differential comparator for automotive and industrial threshold sensing It compares two analog input voltages and drives a digital output high or low based on the difference. The 20mA typical output current drives an optocoupler LED or a small relay coil directly. Maximum input offset voltage is 7mV at 5V — this sets the comparator's switching threshold accuracy. For a 12V battery monitoring circuit, 7mV represents about 0.06% of the rail, well within typical hysteresis margins. The 0.25µA maximum input bias current at 5V keeps the error from source impedance low; a 10kΩ source adds only 2.5mV of additional offset. Quiescent current maxes at 2.5mA per device — for a dual comparator this is 1.25mA per channel. In a battery-powered ECU or sensor module, this quiescent draw is a design constraint to budget against the sleep-mode current target. ## Active production — no lifecycle risk for new designs The base product number LM2903 is a long-running TI comparator family with broad second-source availability across manufacturers, which reduces single-source risk for production BOMs.","metaTitle":"LM2903VQDRG4Q1 Dual Differential Comparator, AEC-Q100","metaDescription":"TI LM2903VQDRG4Q1 dual differential comparator, automotive AEC-Q100 qualified. 2V to 36V supply, open-collector output, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"Differential","Series":"Automotive, AEC-Q100","Package":"Tape & Reel (TR); Cut Tape (CT)","Hysteresis":"-","Output Type":"CMOS, MOS, Open-Collector, 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":"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 @ 5V","Voltage - Supply, Single/Dual (±)":"2V ~ 36V, ±1V ~ 18V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.6000","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/91447dfa8c0b9268e485530ba4a5b230.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2903VQDRG4Q1/alternatives.json"},"ai":{"faq":[{"question":"Is LM2903VQDRG4Q1 a dual comparator?","answer":"Yes, it contains two independent differential comparator channels in one 8-SOIC package. Each channel has its own non-inverting and inverting inputs and a common output stage."},{"question":"What is the output type of LM2903VQDRG4Q1?","answer":"The output supports CMOS, MOS, open-collector, and TTL logic levels. The open-collector output is typically used for wired-OR connections or level-shifting to a lower-voltage logic input."},{"question":"What is the replacement or equivalent for LM2903VQDRG4Q1?","answer":"No direct replacement or equivalent is listed in the product record. The LM2903 base number is a widely second-sourced comparator family — devices from other manufacturers with the same LM2903 base and matching package/temperature suffix are typically pin-compatible, but verify the specific ordering code against your BOM requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2903VQDRG4Q1","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2903VQDRG4Q1 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}}