{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM3481BRSZ-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM3481BRSZ-RL7","canonicalUrl":"https://icboms.com/analog-devices/ADUM3481BRSZ-RL7","factsUrl":"https://icboms.com/api/mcp/products/ADUM3481BRSZ-RL7","rawCanonicalId":null},"summary":{"shortDescription":"ADI iCoupler ADUM3481BRSZ-RL7, General Purpose 4-ch digital isolator, 25Mbps, 3750Vrms isolation, 1.8V-5.5V / 3V-5.5V supply, -40°C to 125°C, 20-SSOP, Tape & Reel.","salesMarkdown":"## Four-channel digital isolator for mixed-voltage isolation The ADUM3481BRSZ-RL7: 4-channel unidirectional digital isolator with 3750Vrms isolation and 25Mbps data rate. ## 25Mbps with 33ns prop delay — what it buys the bus At 25Mbps the ADUM3481 handles SPI clocks up to 12.5MHz (half-cycle sampling), UART at standard baud rates, and parallel GPIO strobes without timing margin trouble. The 33ns max propagation delay in both directions is symmetric, so you don't need to deskew the channel for half-duplex links. Rise and fall times are 2.5ns typical — fast enough to avoid edge-rate jitter on short PCB traces, but not so fast that you need series termination on every run under 5cm. The 3ns pulse-width distortion ceiling means the duty cycle stays within a few percent of 50/50, which matters if you're passing a PWM signal or a Manchester-encoded data stream. ## 3750Vrms and 25kV/µs CMTI — isolation for industrial and automotive domains The 3750Vrms isolation rating is a reinforced-grade level for 240VAC mains-touched circuits (motor drives, power inverters, off-line supplies). The 25kV/µs common-mode transient immunity is the spec that keeps the data link alive when a SiC or IGBT switch transitions at tens of kV/µs — a standard requirement for gate-driver feedback and phase-current sensing in traction inverters. ## Active lifecycle, ROHS3, and the RL7 reel format ROHS3 compliant. No official second-source cross-reference is listed.","metaTitle":"ADUM3481BRSZ-RL7 iCoupler Digital Isolator, 25Mbps, 3750Vrms","metaDescription":"ADUM3481BRSZ-RL7 4-channel digital isolator, 25Mbps data rate, 3750Vrms isolation, -40°C to 125°C. Active production, ROHS3.","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":"25Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"20-SSOP (0.209\\\", 5.30mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"1.8V ~ 5.5V, 3V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"3750Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"3/1","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"20-SSOP","Pulse Width Distortion (Max)":"3ns","Propagation Delay tpLH / tpHL (Max)":"33ns, 33ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.18","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.18000","currency":"USD"},{"qty":10,"price":"$5.58100","currency":"USD"},{"qty":25,"price":"$5.32120","currency":"USD"},{"qty":100,"price":"$4.62030","currency":"USD"},{"qty":250,"price":"$4.41268","currency":"USD"},{"qty":500,"price":"$4.02334","currency":"USD"},{"qty":1000,"price":"$3.50420","currency":"USD"},{"qty":2500,"price":"$3.37441","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM3480_3481_3482.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does ADUM3481BRSZ-RL7 support I2C isolation?","answer":"No. The channel type is unidirectional, and I2C requires bidirectional data lines (SDA). For I2C isolation you would need a part with bidirectional channels or an external direction-control scheme."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM3481BRSZ-RL7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM3481BRSZ-RL7 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}}