{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7821LLSDW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7821LLSDW","canonicalUrl":"https://icboms.com/texas-instruments/ISO7821LLSDW","factsUrl":"https://icboms.com/api/mcp/products/ISO7821LLSDW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7821LLSDW, General Purpose digital isolator, Capacitive Coupling, 2 unidirectional channels, 150Mbps data rate, 5700Vrms isolation, 3V~5.5V supply, -55°C~125°C, 16-SOIC package, Surface Mount, Tube.","salesMarkdown":"## Capacitive-coupled isolation for noisy environments The Texas Instruments ISO7821LLSDW is a 2-channel, unidirectional digital isolator using capacitive coupling to pass signals across a reinforced isolation barrier rated at 5700 Vrms. ## 5700 Vrms isolation — what it buys you Reinforced isolation at 5700 Vrms means this part can withstand a 5.7 kV potential between input and output without breakdown, tested per IEC 60747-5-5. For a 400 V motor drive or a 480 VAC power supply, that margin covers surge events and transient overvoltages without derating. The 100 kV/µs common-mode transient immunity (CMTI) ensures that fast-switching edges from a half-bridge or IGBT stage do not corrupt the data crossing the barrier — a spec that matters when the isolation amplifier or gate-driver feedback path runs at several hundred kHz.","metaTitle":"TI ISO7821LLSDW Digital Isolator, 2-Ch, 150 Mbps, 5700 Vrms","metaDescription":"Texas Instruments ISO7821LLSDW: capacitive-coupling digital isolator, 2 unidirectional channels, 150 Mbps data rate, 5700 Vrms isolation, -55°C to 125°C","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Package":"Tube","Data Rate":"150Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"2","Voltage - Isolation":"5700Vrms","Operating Temperature":"-55°C ~ 125°C","Inputs - Side 1/Side 2":"1/1","Supplier Device Package":"16-SOIC","Propagation Delay tpLH / tpHL (Max)":"25ns, 25ns","Common Mode Transient Immunity (Min)":"100kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$11.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$11.43000","currency":"USD"},{"qty":10,"price":"$10.32400","currency":"USD"},{"qty":25,"price":"$9.84360","currency":"USD"},{"qty":100,"price":"$8.54720","currency":"USD"},{"qty":250,"price":"$8.16304","currency":"USD"},{"qty":500,"price":"$7.44280","currency":"USD"},{"qty":1000,"price":"$6.79500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/eafdb395ceaa6226507ba0c55d9767c8.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data rate of ISO7821LLSDW?","answer":"It supports a maximum data rate of 150 Mbps, with a propagation delay of 25 ns max in either direction."},{"question":"Is ISO7821LLSDW obsolete?","answer":"It is currently available through normal distribution and independent channels."},{"question":"What is the replacement or equivalent for ISO7821LLSDW?","answer":"The closest functional peer is the ISO7830DWWR, which offers 3 channels and a lower 100 Mbps data rate but shares the same 5700 Vrms isolation and 16-SOIC wide-body package. The ISO7721FBDWR is a 2-channel alternative with 5000 Vrms isolation and 100 Mbps data rate. Neither is a drop-in replacement — the channel count and data rate differ."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7821LLSDW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7821LLSDW 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}}