{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM2901VQDRG4","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM2901VQDRG4","canonicalUrl":"https://icboms.com/texas-instruments/LM2901VQDRG4","factsUrl":"https://icboms.com/api/mcp/products/LM2901VQDRG4","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM2901VQDRG4 quad differential comparator, 4 elements, open-collector output, 2V to 32V supply, 20mA output, -40°C to 125°C, 14-SOIC package.","salesMarkdown":"## Quad comparator for industrial and automotive threshold detection Four independent comparators share a common supply range of 2V to 32V single or ±1V to ±16V dual, with open-collector outputs that can sink up to 20mA typical — enough to drive a small relay or LED directly without a buffer transistor. The 2V to 32V single-supply range means the LM2901VQDRG4 can run directly off a 24V industrial bus, a 12V automotive battery, or a 5V logic rail without a local regulator — one less component on the BOM. Maximum input offset voltage is 7mV at 32V supply — adequate for most threshold and level-detection applications, though designs requiring sub-mV precision (e.g., current-sense comparators) should budget for a trim network or select a precision comparator. Maximum input bias current is 0.25µA at 5V, which keeps voltage error low when the source impedance is under 10kΩ — a consideration for high-impedance sensor interfaces. ## Open-collector output and output current rating The open-collector output (compatible with CMOS, MOS, and TTL logic families) allows wired-OR connections and level shifting — the pull-up resistor sets the output high voltage, so the comparator can interface a 5V microcontroller from a 24V supply rail. Typical output sink current is 20mA per channel. At this level the voltage drop across the output transistor stays low enough to drive an LED indicator, optocoupler LED, or small relay coil. For loads above 20mA, add an external transistor. Sourcing is through independent distribution — available stock is existing inventory from excess, overstock, or decommissioned production lines. For new designs or long-term production, consider the active LM2901V series in the same 14-SOIC footprint — the base product number LM2901 covers functionally equivalent quad comparators with the same pinout and supply range. Verify the specific suffix for temperature grade and packaging.","metaTitle":"LM2901VQDRG4 Quad Differential Comparator, -40°C to 125°C","metaDescription":"Texas Instruments LM2901VQDRG4 quad differential comparator, 2V to 32V supply, 20mA output, -40°C to 125°C, SOIC-14.","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":"Cut Tape (CT)","Hysteresis":"-","Output Type":"CMOS, MOS, Open-Collector, TTL","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Obsolete","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 @ 32V","Voltage - Supply, Single/Dual (±)":"2V ~ 32V, ±1V ~ 16V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4300","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4ad78ba98856b92757d2096786cbca55.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM2901VQDRG4/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy LM2901VQDRG4 and check stock?","answer":"The LM2901VQDRG4 is obsolete and sourced through independent distribution. Submit an RFQ for current availability and pricing — stock is confirmed at quote time from excess inventory channels."},{"question":"Is LM2901VQDRG4 obsolete?","answer":"Yes, Texas Instruments lists the LM2901VQDRG4 as obsolete. No official replacement order code is published for this exact suffix, but the base LM2901 family includes functionally equivalent quad comparators in the same SOIC-14 footprint."},{"question":"Is LM2901VQDRG4 compatible with the standard LM2901?","answer":"Yes, the LM2901VQDRG4 shares the same base product number LM2901 and is functionally equivalent to the standard quad comparator family. Pinout and footprint are identical to other LM2901 devices in SOIC-14."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM2901VQDRG4","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM2901VQDRG4 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}}