{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM3482BRSZ-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM3482BRSZ-RL7","canonicalUrl":"https://icboms.com/analog-devices/ADUM3482BRSZ-RL7","factsUrl":"https://icboms.com/api/mcp/products/ADUM3482BRSZ-RL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM3482BRSZ-RL7 iCoupler 4-channel unidirectional digital isolator, 25 Mbps data rate, 3750 Vrms isolation, 20-SSOP package, -40°C to 125°C operating temperature.","salesMarkdown":"## Four-channel unidirectional isolation in a 20-SSOP The ADUM3482BRSZ-RL7 is a 4-channel unidirectional digital isolator from the iCoupler series, built on Analog Devices' magnetic coupling technology. It delivers 3750 Vrms isolation across a 20-SSOP package, with a 2/2 input-to-output channel split that maps directly to isolating a 4-wire SPI bus or two independent bidirectional signal pairs. ## 25 Mbps data rate and 33 ns propagation delay — timing budget for the isolation path The 25 Mbps data rate and 33 ns max propagation delay (tpLH / tpHL) set the timing budget for the isolation path. At 25 Mbps the bit period is 40 ns, so the 33 ns delay leaves 7 ns of margin for the rest of the signal chain — enough for most SPI clock rates up to 12.5 MHz, but tight for a 20 MHz SPI bus. The 2.5 ns typical rise/fall time keeps the edges clean enough to avoid ringing on short PCB traces. Pulse-width distortion is spec'd at 3 ns max, which matters when the downstream logic expects a symmetrical duty cycle — think PWM signals feeding a gate driver or encoder output. ## 25 kV/µs CMTI — the motor-drive and inverter spec Common-mode transient immunity of 25 kV/µs (minimum) is the rating that makes this part viable in systems with fast-switching SiC or GaN power stages. A motor-drive inverter switching at 20 kHz with 600 V bus edges can easily couple 10–15 kV/µs across the barrier; the ADUM3482BRSZ-RL7's 25 kV/µs floor gives headroom against false edge triggering or data corruption. If the system uses 1.2 kV SiC devices switching at 50+ kV/µs, you need to check the margin — the 25 kV/µs minimum is the datasheet guarantee, not a typical. ## Supply rails and level translation The 1.8 V minimum on Side 1 is the real differentiator versus older iCoupler parts that need at least 3 V on both sides. No isolated power on board — this is a signal isolator only. If the isolated side needs a local supply rail, budget for a separate isolated DC-DC converter or an iCoupler with integrated power (like the ADuM5xxx series).","metaTitle":"ADUM3482BRSZ-RL7 iCoupler Digital Isolator, 4-Ch, 25 Mbps","metaDescription":"ADUM3482BRSZ-RL7 from Analog Devices: 4-channel unidirectional digital isolator, 25 Mbps data rate, 3750 Vrms isolation, -40°C to 125°C, 20-SSOP.","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":"2/2","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 ADUM3482BRSZ-RL7 work with a 1.8 V supply on both sides?","answer":"A 1.8 V rail on Side 2 is below the minimum. If both sides need 1.8 V operation, look at the ADuM3480 series or a level shifter on the Side 2 supply."},{"question":"Is ADUM3482BRSZ-RL7 compatible with a 3.3 V supply?","answer":"The part runs cleanly at 3.3 V on both supply pins."},{"question":"What is ADUM3482BRSZ-RL7's closest functional second-source?","answer":"The ADUM3200CRZ-RL7 is a 2-channel unidirectional isolator in the same iCoupler family at 25 Mbps, but with 2500 Vrms isolation and only two channels (2/0 input/output split). It is not a pin-compatible replacement — the ADUM3482BRSZ-RL7 has four channels in a 20-SSOP while the ADUM3200 uses a smaller 8-SOIC. For a four-channel drop-in, there is no direct second-source; the ADUM3482 is the only 4-channel, 2/2-split, 3750 Vrms part in the iCoupler line at this data rate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM3482BRSZ-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/ADUM3482BRSZ-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}}