{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM121N1BRZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM121N1BRZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM121N1BRZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM121N1BRZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM121N1BRZ iCoupler, 2-channel general-purpose digital isolator, 150Mbps, 3000Vrms isolation, 75kV/µs CMTI, 1.7V-5.5V supply, -40°C to 125°C, 8-SOIC.","salesMarkdown":"## Two-channel digital isolator for noisy industrial links The ADUM121N1BRZ is a two-channel, unidirectional digital isolator from the iCoupler family, using magnetic coupling. It delivers 150Mbps across a 3000Vrms barrier, with 13ns propagation delay and 3ns pulse-width distortion. ## 75kV/µs CMTI — the spec that keeps data clean in a motor drive Common-mode transient immunity is rated at 75kV/µs minimum. That is the number to watch when the isolator sits between a microcontroller and a gate-driver on a 48V or 400V inverter bus — fast switching edges couple common-mode noise across the barrier, and if the CMTI is too low, the output glitches. 75kV/µs handles the dV/dt from SiC and GaN stages comfortably. Rise and fall times are 2.5ns typical, so the output edges stay sharp enough for 150Mbps NRZ data without excessive ringing.","metaTitle":"ADUM121N1BRZ Digital Isolator, 150Mbps, 3000Vrms, 8-SOIC","metaDescription":"ADUM121N1BRZ iCoupler 2-channel digital isolator, 150Mbps data rate, 3000Vrms isolation, 75kV/µs CMTI, -40°C to 125°C. Active, ROHS3.","metaKeywords":null},"attributes":{"series":"iCoupler®","packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Series":"iCoupler®","Package":"Tube","Data Rate":"150Mbps","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":"1.7V ~ 5.5V","Number of Channels":"2","Voltage - Isolation":"3000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"1/1","Rise / Fall Time (Typ)":"2.5ns, 2.5ns","Supplier Device Package":"8-SOIC","Pulse Width Distortion (Max)":"3ns","Propagation Delay tpLH / tpHL (Max)":"13ns, 13ns","Common Mode Transient Immunity (Min)":"75kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$2.68","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$2.68000","currency":"USD"},{"qty":10,"price":"$2.40900","currency":"USD"},{"qty":25,"price":"$2.27240","currency":"USD"},{"qty":100,"price":"$1.93620","currency":"USD"},{"qty":250,"price":"$1.81800","currency":"USD"},{"qty":500,"price":"$1.59076","currency":"USD"},{"qty":1000,"price":"$1.31805","currency":"USD"},{"qty":2500,"price":"$1.22715","currency":"USD"},{"qty":5000,"price":"$1.18170","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/8eb4479fc59bee0d85f7ee2b1d7ac7fd.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can ADUM121N1BRZ be used for SPI isolation?","answer":"Yes, the 150Mbps data rate and 13ns propagation delay are fast enough for SPI clocks up to 75 MHz (half-duplex) or 150 Mbps (full-duplex with two channels). The unidirectional channel configuration — one input on side 1, one input on side 2 — matches a typical SPI MOSI/MISO pair. For a three-wire SPI with chip select, you would need a third channel, which the three-channel ADUM131D0BRZ provides in the same package footprint."},{"question":"What is the replacement for ADUM121N1BRZ?","answer":"There is no official replacement because the part is active and current. The tape-and-reel variant ADUM121N1BRZ-RL7 is functionally identical — same silicon, same ratings — just packaged in Tape & Reel instead of Tube."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM121N1BRZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM121N1BRZ 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}}