{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADM2481BRWZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADM2481BRWZ","canonicalUrl":"https://icboms.com/analog-devices/ADM2481BRWZ","factsUrl":"https://icboms.com/api/mcp/products/ADM2481BRWZ","rawCanonicalId":null},"summary":{"shortDescription":"ADI ADM2481BRWZ iCoupler isolated RS422/RS485 transceiver, 500kbps data rate, 2500Vrms isolation, 3-channel bidirectional, 3.3V/5V supply, 16-SOIC wide body, -40°C to 85°C.","salesMarkdown":"## Isolated RS485 transceiver with iCoupler magnetic isolation It integrates a 3-channel bidirectional isolator with a differential line driver and receiver, delivering 2500Vrms of isolation between the logic-side and bus-side interfaces. The part is rated for 500kbps data rate with a minimum common-mode transient immunity of 25kV/µs, making it suited for noisy industrial environments where ground loops and motor-drive transients would otherwise corrupt serial data. Operating from either a 3.3V or 5V supply on the logic side and a separate 5V supply on the bus side, the ADM2481BRWZ covers the two most common industrial logic rails. The wide-body 16-SOIC package (0.295\" body width, 7.50mm) provides the creepage distance needed to maintain the 2500Vrms isolation rating across the barrier. ## Channel count and direction — how the bus connects The three channels are configured as 2 inputs on Side 1 (logic side) and 1 input on Side 2 (bus side), with bidirectional channel type. This maps to the typical half-duplex RS485 interface: one channel carries the driver data from logic to bus, a second channel carries the receiver data from bus to logic, and the third channel is used for the driver enable (DE) signal, allowing the logic-side controller to assert bus control. The 600ns typical rise/fall time (600ns max) limits edge-rate emissions and matches the 500kbps data rate target. ## Sourcing and supply posture For volume production commitments or blanket-order coverage, the active lifecycle status means ADI's factory channel remains open, and the independent channel provides a secondary supply path for bridge buys or expedites.","metaTitle":"ADM2481BRWZ iCoupler RS485 Isolator, 500kbps, 2500Vrms","metaDescription":"ADM2481BRWZ isolated RS422/RS485 transceiver from ADI's iCoupler series.","metaKeywords":null},"attributes":{"series":"iCoupler®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"RS422, RS485","Series":"iCoupler®","Package":"Tube","Data Rate":"500kbps","Technology":"Magnetic Coupling","Channel Type":"Bidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3.3V, 5V","Number of Channels":"3","Voltage - Isolation":"2500Vrms","Operating Temperature":"-40°C ~ 85°C","Inputs - Side 1/Side 2":"2/1","Rise / Fall Time (Typ)":"600ns, 600ns (Max)","Supplier Device Package":"16-SOIC","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.69","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.69000","currency":"USD"},{"qty":10,"price":"$6.94900","currency":"USD"},{"qty":47,"price":"$6.62553","currency":"USD"},{"qty":141,"price":"$5.75298","currency":"USD"},{"qty":282,"price":"$5.49440","currency":"USD"},{"qty":517,"price":"$5.00959","currency":"USD"},{"qty":1034,"price":"$4.36320","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/a1c362e438a67530af69a1c93eeeedbd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ADM2481BRWZ compatible with 3.3V logic?","answer":"Yes. The logic-side supply accepts either 3.3V or 5V, so the part interfaces directly with 3.3V UARTs and microcontrollers without external level shifting."},{"question":"Can ADM2481BRWZ work with 5V supply?","answer":"Yes. The logic side accepts 5V supply, and the bus-side supply is also 5V."},{"question":"How many channels does ADM2481BRWZ have?","answer":"Three channels total, configured as 2 inputs on the logic side (Side 1) and 1 input on the bus side (Side 2), with bidirectional channel type supporting half-duplex RS485 communication plus driver enable."},{"question":"What is the difference between ADM2481BRWZ and ADM2481BRWZ-RL?","answer":"The ADM2481BRWZ ships in Tube packaging, while the ADM2481BRWZ-RL variant ships in Tape & Reel. The silicon, electrical specifications, and package (16-SOIC wide body) are identical between the two suffix options."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADM2481BRWZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADM2481BRWZ 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}}