{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LM339DBR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LM339DBR","canonicalUrl":"https://icboms.com/texas-instruments/LM339DBR","factsUrl":"https://icboms.com/api/mcp/products/LM339DBR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LM339DBR, quad differential comparator, 14-SSOP package, 2V to 30V single/±1V to ±15V dual supply, 20mA typical output, 0°C to 70°C operating temperature.","salesMarkdown":"## Four comparators, one SSOP-14 — what the supply range means for your rail The LM339DBR is a quad differential comparator from Texas Instruments, packing four independent comparator channels into a 14-SSOP surface-mount package. Its supply range spans 2V to 30V in single-supply operation or ±1V to ±15V with dual rails, covering everything from 3.3V logic systems to 24V industrial sensor interfaces. ## Output flexibility and bias — matching the downstream logic family The output stage supports CMOS, MOS, open-collector, and TTL logic families, so the same comparator can drive a 5V TTL gate, an open-drain pull-up to 12V, or a CMOS input without extra level translation. Each output sinks up to 20mA typical, enough for small relays or indicator LEDs. Input bias current is 0.25µA maximum at 5V, and the input offset voltage is 5mV maximum at 30V. These ratings keep threshold errors low in precision window comparators and zero-crossing detectors where the reference voltage is set by a resistor divider. Quiescent current per package is 2.5mA maximum — modest for a quad device, but worth including in the power budget for battery-powered equipment running from a 3V or 5V rail. For industrial or automotive environments requiring -40°C to 85°C or 125°C, look to the LM339 industrial-grade or AEC-Q100 qualified siblings in the same family.","metaTitle":"LM339DBR Quad Differential Comparator, 14-SSOP","metaDescription":"Texas Instruments LM339DBR quad differential comparator. 2V to 30V supply, 14-SSOP, 20mA output. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Mfr":"Texas Instruments","Type":"Differential","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Hysteresis":"-","Output Type":"CMOS, MOS, Open-Collector, TTL","Mounting Type":"Surface Mount","Package / Case":"14-SSOP (0.209\\\", 5.30mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"-","Number of Elements":"4","Base Product Number":"LM339","Operating Temperature":"0°C~70°C","Current - Output (Typ)":"20mA","Propagation Delay (Max)":"-","Supplier Device Package":"14-SSOP","Current - Quiescent (Max)":"2.5mA","Current - Input Bias (Max)":"0.25µA @ 5V","Voltage - Input Offset (Max)":"5mV @ 30V","Voltage - Supply, Single/Dual (±)":"2V ~ 30V, ±1V ~ 15V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$0.4700","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/01d017d5c3c4e323e53d322683ed2720.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/LM339DBR/alternatives.json"},"ai":{"faq":[{"question":"Is LM339DBR a direct replacement for LM339N?","answer":"The LM339DBR is functionally identical to the LM339N — same quad differential comparator, same supply range, same output types. The difference is the package: LM339DBR is a 14-SSOP surface-mount device, while LM339N is a 14-DIP through-hole part. They are not pin-compatible on the same PCB footprint."},{"question":"What is the output type of LM339DBR?","answer":"The LM339DBR outputs are compatible with CMOS, MOS, open-collector, and TTL logic families. The open-collector output allows wired-OR connections and pull-up to voltages independent of the comparator supply."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LM339DBR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LM339DBR 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}}