{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM1280WARZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM1280WARZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM1280WARZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM1280WARZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM1280WARZ, iCoupler series, general-purpose digital isolator, 2-channel unidirectional, 3000Vrms isolation, 1Mbps data rate, 50ns propagation delay, automotive grade, -40°C to 125°C, 8-SOIC package, tube.","salesMarkdown":"## What the 3000Vrms rating means for your isolation barrier The ADUM1280WARZ is a 2-channel, unidirectional digital isolator from Analog Devices' iCoupler family, using magnetic coupling to transfer signals across a 3000Vrms isolation barrier. That 3000Vrms rating is the key spec for reinforced insulation in automotive and industrial systems — it provides the safety margin needed for motor-drive feedback, battery-management communication, and CAN bus isolation where the working voltage can spike during load dumps or inductive kickback. Both channels are on the input side (2/0), meaning all data flows in one direction. There is no reverse channel for handshake or fault feedback — if your design needs bidirectional isolation (e.g., a transceiver with TX/RX on opposite sides), the ADUM1281WARZ with its 1/1 input split is the functional alternative. ## 1Mbps data rate and 50ns propagation delay — timing budget reality Rated for 1Mbps with a typical rise/fall time of 2.5ns and a maximum propagation delay of 50ns in either direction. That 50ns prop delay is the number to close in your timing budget — it eats into the setup/hold margin of a SPI or UART link, so at 1Mbps (1µs bit period) you have 5% of the bit time consumed by the isolator alone. Pulse-width distortion is held to 10ns max, which keeps the duty-cycle distortion low enough for most asynchronous protocols. Common-mode transient immunity is rated at 25kV/µs minimum — that is the spec that matters when the isolator sits on a noisy automotive 12V rail or next to a switching node. If the CMTI is too low, fast transients couple through the barrier and corrupt the output. 25kV/µs is sufficient for most motor-drive and battery-monitoring environments. ## Automotive grade and temperature range That covers under-hood, engine-bay, and transmission-control environments where commercial-temperature parts would drift or fail. ## Package and footprint — 8-SOIC Housed in an 8-pin SOIC (0.154\" body width, 3.90mm), surface-mount. The supplier device package is 8-SOIC — standard footprint, no exposed pad, no thermal vias needed. ## Lifecycle and sourcing ROHS3 compliant.","metaTitle":"ADUM1280WARZ Digital Isolator, 3000Vrms, Automotive Grade","metaDescription":"ADUM1280WARZ general-purpose magnetic isolator: 3000Vrms isolation, 1Mbps data rate, 2 unidirectional channels, -40°C to 125°C, automotive grade.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Grade":"Automotive","Package":"Tube","Data Rate":"1Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"2","Voltage - Isolation":"3000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"2/0","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"8-SOIC","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":"$5.27","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.27000","currency":"USD"},{"qty":10,"price":"$4.73500","currency":"USD"},{"qty":25,"price":"$4.47680","currency":"USD"},{"qty":100,"price":"$3.87990","currency":"USD"},{"qty":250,"price":"$3.68096","currency":"USD"},{"qty":500,"price":"$3.30290","currency":"USD"},{"qty":1000,"price":"$2.78558","currency":"USD"},{"qty":2500,"price":"$2.64630","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8e75547927d6f41e80c5c7dd03fbac65.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM1280WARZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM1280WARZ 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}}