{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7221ADR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7221ADR","canonicalUrl":"https://icboms.com/texas-instruments/ISO7221ADR","factsUrl":"https://icboms.com/api/mcp/products/ISO7221ADR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7221ADR, General Purpose digital isolator, 2 channels, 1 Mbps data rate, Capacitive Coupling, 2500 Vrms isolation, 3V to 5.5V supply, -40°C to 125°C, 8-SOIC package.","salesMarkdown":"It provides galvanic isolation up to 2500 Vrms between input and output sides, with one channel on side 1 and one on side 2. With a maximum data rate of 1 Mbps, this isolator handles SPI, UART, and most industrial fieldbus signaling up to that speed. The propagation delay is 475 ns max in both directions, and pulse-width distortion is held to 14 ns max. That delay budget matters for timing-closed loops: at 1 Mbps the bit period is 1 µs, so the 475 ns delay eats nearly half the period one-way. For full-duplex links or daisy-chained nodes, factor that into the round-trip timing. ## Common-mode transient immunity for noisy environments The ISO7221ADR specifies a minimum common-mode transient immunity (CMTI) of 25 kV/µs. That rating is the key spec for applications like motor drives or half-bridge gate drivers where fast-switching power devices couple high dv/dt across the isolation barrier. If the CMTI is too low, the output can glitch or latch. At 25 kV/µs this part handles most industrial inverter edges without false triggering. Housed in an 8-pin SOIC (3.90 mm width) package, the ISO7221ADR is a drop-in for standard SOIC-8 footprints.","metaTitle":"TI ISO7221ADR General Purpose Digital Isolator, 1 Mbps","metaDescription":"Texas Instruments ISO7221ADR dual-channel capacitive isolator, 1 Mbps data rate, 2500 Vrms isolation, -40°C to 125°C, 8-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"-","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"1Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"2","Base Product Number":"ISO7221","Voltage - Isolation":"2500Vrms","Operating Temperature":"-40°C~125°C","Inputs - Side 1/Side 2":"1/1","Rise / Fall Time (Typ)":"1ns, 1ns","Supplier Device Package":"8-SOIC","Pulse Width Distortion (Max)":"14ns","Propagation Delay tpLH / tpHL (Max)":"475ns, 475ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.3200","priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/1712d03fe062b8dd6fd316c327e8b1ca.pdf","sourceUrl":null,"alternativesUrl":"https://icboms.com/api/mcp/products/ISO7221ADR/alternatives.json"},"ai":{"faq":[{"question":"Where can I buy ISO7221ADR with stock?","answer":"ISO7221ADR is available through independent distribution. Submit an RFQ for current availability and pricing — stock levels and lead times are confirmed at quote time."},{"question":"What is the maximum data rate of ISO7221ADR?","answer":"The maximum data rate is 1 Mbps. Propagation delay is 475 ns max, and pulse-width distortion is 14 ns max."},{"question":"What is the difference between ISO7221ADR and ISO7221MD?","answer":"The primary difference is the data rate grade: ISO7221ADR is rated for 1 Mbps, while ISO7221MD supports higher speeds (typically 150 Mbps). Both share the same pinout and 2500 Vrms isolation rating, so the MD variant is the upgrade path for faster buses."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7221ADR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7221ADR when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-08-11T15:49:49.435Z","lastPublished":"2026-08-11T15:49:49.435Z","indexable":true}}