{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM4154ARIZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM4154ARIZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM4154ARIZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM4154ARIZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM4154ARIZ, iCoupler®, SPIsolator™ series, SPI digital isolator, 4-channel unidirectional, 2Mbps data rate, 5000Vrms isolation, 3V to 5.5V supply, 20-SOIC-IC, -40°C to 125°C.","salesMarkdown":"## SPI isolator for field-bus and sensor links The ADUM4154ARIZ is a 4-channel SPI digital isolator from Analog Devices' iCoupler and SPIsolator families, built with magnetic coupling for unidirectional signal transfer across a 5000Vrms isolation barrier. The 5000Vrms isolation rating qualifies this part for reinforced insulation in mains-connected equipment — think industrial drives with 480VAC bus voltages or medical devices needing patient protection. The 25kV/µs common-mode transient immunity means it won't glitch during motor PWM switching or relay contact bounce, which is the kind of noise that corrupts SPI frames on non-isolated links. The 2.5ns typical rise/fall times keep signal edges clean at 2Mbps without excessive ringing, and the 2ns max pulse-width distortion means the clock-to-data skew stays tight enough for SPI mode 0 and mode 3 timing. ## Supply and logic-level flexibility With a supply range of 3V to 5.5V on both sides, this isolator works with 3.3V MCUs and 5V peripherals on the same chip — no external level translator needed. The 3/1 input-side/side-2 split (three channels from side 1 to side 2, one reverse) maps naturally to SPI: SCLK, MOSI, and CS from the controller, and MISO back from the peripheral. The unidirectional channel type means each channel is fixed-direction, so verify your SPI bus direction matches the pinout before layout. ## Package and production status Housed in a 20-SOIC wide-body (7.50mm width) package, surface-mount, supplied in tube. No official second source is listed, but the iCoupler family includes multiple SPI isolators with similar pinouts — check the channel count and direction before substituting.","metaTitle":"ADUM4154ARIZ SPI Digital Isolator, 5000Vrms, 2Mbps, 20-SOIC","metaDescription":"ADUM4154ARIZ iCoupler SPI digital isolator: 5000Vrms isolation, 2Mbps data rate, 3V-5.5V supply, -40°C to 125°C. Active, RoHS3 compliant.","metaKeywords":null},"attributes":{"series":"iCoupler®, SPIsolator™","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"SPI","Series":"iCoupler®, SPIsolator™","Package":"Tube","Data Rate":"2Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"20-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"5000Vrms","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-SOIC-IC","Pulse Width Distortion (Max)":"2ns","Propagation Delay tpLH / tpHL (Max)":"25ns, 25ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.43","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.43000","currency":"USD"},{"qty":10,"price":"$9.42400","currency":"USD"},{"qty":25,"price":"$8.98600","currency":"USD"},{"qty":100,"price":"$7.80250","currency":"USD"},{"qty":250,"price":"$7.45176","currency":"USD"},{"qty":500,"price":"$6.79428","currency":"USD"},{"qty":1000,"price":"$5.91759","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM4154.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data rate of ADUM4154ARIZ?","answer":"The maximum data rate is 2Mbps, which covers standard SPI bus speeds for sensor readout, configuration registers, and moderate-throughput data links."},{"question":"Is ADUM4154ARIZ suitable for 3.3V logic levels?","answer":"Yes — the 3V to 5.5V supply range on both sides means it operates directly with 3.3V or 5V logic without additional level translation."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM4154ARIZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM4154ARIZ 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}}