{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LMC7221BIM","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"LMC7221BIM","canonicalUrl":"https://icboms.com/texas-instruments/LMC7221BIM","factsUrl":"https://icboms.com/api/mcp/products/LMC7221BIM","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments LMC7221BIM, General Purpose comparator, single element, open-drain output, 8-SOIC surface-mount package, 2.7 V to 15 V supply, 10 µs propagation delay, 14 µA quiescent current, -40°C to 85°C operating temperature.","salesMarkdown":"## What this comparator is and where it fits The Texas Instruments LMC7221BIM is a single-channel, general-purpose comparator with an open-drain output stage. It operates from a single 2.7 V to 15 V supply or a dual ±1.35 V to ±7.5 V rail. ## 10 µs propagation delay — timing budget for the loop The 10 µs max propagation delay is the time from when the input crosses the threshold to when the output switches. Budget the max for a robust design. ## 14 µA quiescent current — power budget for always-on sense The maximum quiescent current draw is 14 µA. That's low enough to leave the comparator powered continuously in a battery-operated sensor node without draining the cell overnight. Compare that to older bipolar comparators that pull milliamps — this part saves the design a load-switch or a duty-cycling scheme. The open-drain output also draws no supply current when the output is high (the pull-up resistor carries the load), so the average power stays close to the quiescent figure. ## Open-drain output — pull-up resistor required The output is open-drain, rated to sink 30 mA typical. You must add an external pull-up resistor to the voltage you want the logic high to be. ## Supply range and input offset — what to watch The supply range is 2.7 V to 15 V single, or ±1.35 V to ±7.5 V dual. The maximum input offset voltage is 15 mV at 5 V.","metaTitle":"LMC7221BIM Comparator, Open Drain, 8-SOIC, 10µs, Active","metaDescription":"LMC7221BIM general-purpose comparator from TI: open-drain output, 10µs propagation delay, 14µA quiescent current, 2.7V–15V supply. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Memory (DRAM / SRAM / Flash / EEPROM)"],"specifications":{"Type":"General Purpose","Package":"Bulk","Output Type":"Open Drain","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","CMRR, PSRR (Typ)":"75dB CMRR, 80dB PSRR","Number of Elements":"1","Operating Temperature":"-40°C ~ 85°C","Current - Output (Typ)":"30mA","Propagation Delay (Max)":"10µs","Supplier Device Package":"8-SOIC","Current - Quiescent (Max)":"14µA","Current - Input Bias (Max)":"0.04pA @ 5V","Voltage - Input Offset (Max)":"15mV @ 5V","Voltage - Supply, Single/Dual (±)":"2.7V ~ 15V, ±1.35V ~ 7.5V"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$1.13","stockQuantity":0,"priceTiers":[{"qty":266,"price":"$1.13000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/94deccde00171c706982536536b0f67f.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the LMC7221BIM replacement or equivalent?","answer":"There is no official manufacturer-specified replacement. The TLV9032DDFR is a faster dual push-pull comparator but is not pin-compatible. The 54F521DC is another alternate in a different package format. Neither is a direct drop-in."},{"question":"What is the LMC7221BIM pinout?","answer":"The LMC7221BIM comes in an 8-SOIC package. The pinout follows the standard single-comparator layout: non-inverting input, inverting input, ground, open-drain output, and supply. Refer to the datasheet for the exact pin numbering."},{"question":"What is the LMC7221BIM used for?","answer":"The LMC7221BIM is a general-purpose comparator used for threshold detection, zero-crossing detection, window comparators, and signal conditioning in battery-powered or industrial equipment. Its open-drain output interfaces directly with logic families or drives small loads."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/LMC7221BIM","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/LMC7221BIM when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}