{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2901DG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2901DG4","canonicalUrl":"https://icboms.com/texas-instruments/LM2901DG4","factsUrl":"https://icboms.com/api/mcp/products/LM2901DG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2901DG4, General Purpose Quad Comparator, 2V~30V supply, Open-Collector/CMOS/TTL output, 14-SOIC package, -40°C~125°C.","salesMarkdown":"## Quad comparator for mixed-voltage industrial sensing The Texas Instruments LM2901DG4 is a general-purpose quad comparator — four independent voltage comparators in a single 14-SOIC package. It compares two analog input voltages and drives an open-collector output low when the non-inverting input falls below the inverting input. The supply range covers 2 V to 30 V for single-rail operation, or ±1 V to ±15 V with split supplies. That spans everything from a 3.3 V microcontroller rail to a 24 V industrial bus supply without needing a secondary regulator. Quiescent current maxes at 2.5 mA across all four comparators, so the power budget stays tight even on a 24 V rail — about 60 mW total at 24 V. Input bias current is 0.25 µA max at 5 V, which means you can use high-value feedback resistors (100 kΩ or more) without the bias current shifting the threshold more than a few millivolts. ## Open-collector output — why it matters for level translation The output stage is open-collector, compatible with CMOS, MOS, and TTL logic families. That means the output pull-up resistor connects to a separate supply — the comparator can run from 24 V while its output drives a 3.3 V FPGA input.","metaTitle":"LM2901DG4 Quad Comparator, 2V–30V, -40°C to 125°C, SOIC-14","metaDescription":"LM2901DG4 general-purpose quad comparator from Texas Instruments. Wide supply range 2V–30V, open-collector output, industrial temp -40°C to 125°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":"Tube","Hysteresis":"-","Output Type":"CMOS, MOS, Open-Collector, TTL","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"-","Number of Elements":"4","Base Product Number":"LM2901","Operating Temperature":"-40°C~125°C","Current - Output (Typ)":"20mA","Propagation Delay (Max)":"-","Supplier Device Package":"14-SOIC","Current - Quiescent (Max)":"2.5mA","Current - Input Bias (Max)":"0.25µA @ 5V","Voltage - Input Offset (Max)":"7mV @ 30V","Voltage - Supply, Single/Dual (±)":"2V ~ 30V, ±1V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":null,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/01d017d5c3c4e323e53d322683ed2720.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2901DG4/alternatives.json"},"ai":{"faq":[{"question":"What output types does LM2901DG4 support?","answer":"The LM2901DG4 has an open-collector output that is compatible with CMOS, MOS, and TTL logic families. The open drain lets you pull up to a different voltage than the comparator supply, enabling level translation between a 24 V sensor and a 3.3 V logic input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2901DG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2901DG4 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}}