{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM3154BRSZ-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM3154BRSZ-RL7","canonicalUrl":"https://icboms.com/analog-devices/ADUM3154BRSZ-RL7","factsUrl":"https://icboms.com/api/mcp/products/ADUM3154BRSZ-RL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM3154BRSZ-RL7, iCoupler® SPIsolator™ series, SPI digital isolator, 4 channels, 34 Mbps data rate, 3750 Vrms isolation, 20-SSOP package, -40°C to 125°C.","salesMarkdown":"The ADUM3154BRSZ-RL7 is a dedicated SPI bus digital isolator from Analog Devices' iCoupler® SPIsolator™ family, using magnetic coupling to provide galvanic isolation for serial peripheral interface links. It delivers a 34 Mbps data rate across four unidirectional channels arranged as three on the primary side and one on the secondary side, which matches the typical SPI signal set (SCLK, MOSI, MISO, and a chip-select or interrupt line). The 3750 Vrms isolation rating covers reinforced isolation requirements for industrial fieldbus, motor drives, and medical equipment where the safety barrier must hold off transient overvoltages. Propagation delay is 14 ns max in both directions, and pulse-width distortion stays under 2 ns, so the clock-to-data skew budget remains tight enough for 34 Mbps SPI without needing to slow the bus. ## Channel mapping and timing — the SPI-specific layout The 3/1 input-side-to-output-side split (three inputs on side 1, one input on side 2) is intentional for SPI: the master-side clock, MOSI, and chip-select go through the three forward channels, while the MISO return path uses the single reverse channel. Rise and fall times are 2.5 ns typical, which keeps edge rates fast enough for 34 Mbps but not so aggressive that they cause excessive ringing on a well-terminated trace. Common-mode transient immunity is 25 kV/µs minimum, meaning the part holds its output state through fast voltage swings on the isolation barrier — relevant when the secondary side sits on a motor-drive high-voltage rail or a noisy inverter ground. ## Package and temperature grade Housed in a 20-SSOP package (5.30 mm body width), surface-mount only. No isolated power converter is integrated — the ADUM3154BRSZ-RL7 is a signal-only isolator; the secondary-side supply must come from an external isolated DC-DC or a separate rail.","metaTitle":"ADUM3154BRSZ-RL7 SPI Digital Isolator, 34 Mbps, 3750 Vrms","metaDescription":"ADI ADUM3154BRSZ-RL7 SPI digital isolator: 34 Mbps data rate, 3750 Vrms isolation, 4 channels, -40°C to 125°C. Active lifecycle.","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":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"34Mbps","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":"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)":"2ns","Propagation Delay tpLH / tpHL (Max)":"14ns, 14ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$8.78","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$8.78000","currency":"USD"},{"qty":10,"price":"$7.93100","currency":"USD"},{"qty":25,"price":"$7.56200","currency":"USD"},{"qty":100,"price":"$6.56610","currency":"USD"},{"qty":250,"price":"$6.27096","currency":"USD"},{"qty":500,"price":"$5.71764","currency":"USD"},{"qty":1000,"price":"$5.22000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM3154.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum data rate of ADUM3154BRSZ-RL7?","answer":"The ADUM3154BRSZ-RL7 supports a maximum data rate of 34 Mbps, with propagation delay of 14 ns max and pulse-width distortion under 2 ns, which keeps the bus timing clean at that speed."},{"question":"Is ADUM3154BRSZ-RL7 lead-free?","answer":"Yes, it is ROHS3 compliant, which restricts lead and other hazardous substances under current EU directives."},{"question":"How does ADUM3154BRSZ-RL7 compare to ADUM4150ARIZ-RL?","answer":"The ADUM4150ARIZ-RL is a 6-channel SPI isolator with a higher 40 Mbps data rate and 5000 Vrms isolation, but in a larger package. The ADUM3154BRSZ-RL7 offers 4 channels at 34 Mbps with 3750 Vrms in a smaller 20-SSOP footprint — the choice depends on channel count and isolation voltage requirements."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM3154BRSZ-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/ADUM3154BRSZ-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}}