{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM2281ARIZ-RL","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM2281ARIZ-RL","canonicalUrl":"https://icboms.com/analog-devices/ADUM2281ARIZ-RL","factsUrl":"https://icboms.com/api/mcp/products/ADUM2281ARIZ-RL","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM2281ARIZ-RL, iCoupler series, 2-channel unidirectional digital isolator, 5000Vrms isolation, 1Mbps data rate, 25kV/µs CMTI, 3V-5.5V supply, -40°C to 125°C, 16-SOIC-IC.","salesMarkdown":"## 5000 Vrms isolation — the reason you spec this part The ADUM2281ARIZ-RL is an Analog Devices iCoupler 2-channel unidirectional digital isolator built around magnetic coupling technology. Its headline rating is 5000 Vrms isolation — the figure that determines whether your design passes safety certification in medical, industrial, or grid-tied equipment. ## 25 kV/µs CMTI — the spec that keeps the bus alive Common-mode transient immunity of 25 kV/µs minimum means this isolator can reject fast voltage spikes across the isolation barrier — exactly what you get from IGBT switching edges in a motor drive or the primary-side FET transitions in a flyback supply. If the CMTI is too low, the output glitches and the downstream controller sees a false edge. At 25 kV/µs this part handles the noise environment of a 600 V inverter bus without extra filtering. Propagation delay is 50 ns max in both directions, with pulse-width distortion held to 10 ns max. Rise and fall times are a tight 2.5 ns typical, so the waveform integrity stays clean across the barrier at 1 Mbps. For a 1 Mbps signal that means the output tracks the input within a few percent of the bit period — no timing budget surprises. Surface-mount only, in the 16-SOIC-IC supplier package variant.","metaTitle":"ADUM2281ARIZ-RL Digital Isolator, 5000Vrms, 2-Ch, 1Mbps","metaDescription":"ADUM2281ARIZ-RL 2-channel unidirectional digital isolator with 5000Vrms isolation, 1Mbps data rate, 25kV/µs CMTI, -40°C to 125°C. Active, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":"iCoupler®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"iCoupler®","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"1Mbps","Technology":"Magnetic 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":"5000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"1/1","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"16-SOIC-IC","Pulse Width Distortion (Max)":"10ns","Propagation Delay tpLH / tpHL (Max)":"50ns, 50ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.19","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.19000","currency":"USD"},{"qty":10,"price":"$4.66300","currency":"USD"},{"qty":25,"price":"$4.40880","currency":"USD"},{"qty":100,"price":"$3.82080","currency":"USD"},{"qty":250,"price":"$3.62488","currency":"USD"},{"qty":500,"price":"$3.25260","currency":"USD"},{"qty":1000,"price":"$2.74316","currency":"USD"},{"qty":2000,"price":"$2.60600","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a3bf07a230f12ea14d79738dbc1a1507.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ADUM2281ARIZ-RL compatible with 3.3V logic?","answer":"Yes. Both input and output logic levels track the respective side's supply voltage."},{"question":"What is the difference between ADUM2281ARIZ-RL and ADUM2280ARIZ?","answer":"The ADUM2281ARIZ-RL is a 2-channel unidirectional isolator with a 1/1 input/output split. The ADUM2280ARIZ is a different channel-configuration variant in the same iCoupler family — the key difference is the direction assignment across the two channels. Check the channel-direction table in the datasheet to match your signal flow requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM2281ARIZ-RL","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM2281ARIZ-RL 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}}