{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM7442ARQZ-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM7442ARQZ-RL7","canonicalUrl":"https://icboms.com/analog-devices/ADUM7442ARQZ-RL7","factsUrl":"https://icboms.com/api/mcp/products/ADUM7442ARQZ-RL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM7442ARQZ-RL7 iCoupler digital isolator, 4-channel unidirectional, 1Mbps data rate, 1000Vrms isolation, 15kV/µs CMTI, 3V-5.5V supply, -40°C to 105°C, 16-QSOP package.","salesMarkdown":"## 1000Vrms isolation, 4 unidirectional channels The Analog Devices ADUM7442ARQZ-RL7 is a 4-channel unidirectional digital isolator from the iCoupler family, built on magnetic coupling technology. It provides galvanic isolation up to 1000Vrms between input and output sides, with two channels per direction — a 2/2 split that maps neatly to isolated SPI (clock and data out on one side, data in and chip-select return on the other) or four independent general-purpose signal paths. The 1Mbps data rate handles most sensor interfaces, UART links, and GPIO isolation tasks without the speed overhead of higher-rate parts. Common-mode transient immunity is rated at 15kV/µs minimum, which means the part holds data integrity through fast voltage transients across the isolation barrier — a key spec for motor-drive, inverter, and industrial environments where switching noise couples into the ground loop. Propagation delay is 75ns max in both directions, symmetrical within 25ns pulse-width distortion. At 1Mbps (1µs bit period), the 75ns delay consumes 7.5% of the timing budget — manageable for most SPI and UART links but worth checking if the design chains multiple isolators in series. Rise and fall times are 2ns typical, keeping edge rates clean without excessive ringing. The 16-QSOP package (3.90mm body width) is a compact footprint for four-channel isolation — about the same board area as two dual-channel isolators but with one fewer IC to route and decouple. Surface-mount only, so plan for reflow assembly. ## Temperature grade and deployment context Not rated for automotive under-hood (125°C) or military extended-range applications, but the industrial band covers the majority of commercial and light-industrial designs. ## Sourcing and lifecycle status It is not listed as NRND or last-time-buy, so no imminent obsolescence risk for production programs.","metaTitle":"ADUM7442ARQZ-RL7 Digital Isolator, 4Ch, 1Mbps, 1000Vrms","metaDescription":"ADUM7442ARQZ-RL7 iCoupler 4-channel unidirectional digital isolator, 1Mbps data rate, 1000Vrms isolation, 15kV/µs CMTI, -40°C to 105°C, 16-QSOP.","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":"1Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"1000Vrms","Operating Temperature":"-40°C ~ 105°C","Inputs - Side 1/Side 2":"2/2","Rise / Fall Time (Typ)":"2ns, 2ns","Supplier Device Package":"16-QSOP","Pulse Width Distortion (Max)":"25ns","Propagation Delay tpLH / tpHL (Max)":"75ns, 75ns","Common Mode Transient Immunity (Min)":"15kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.62000","currency":"USD"},{"qty":10,"price":"$5.04800","currency":"USD"},{"qty":25,"price":"$4.77240","currency":"USD"},{"qty":100,"price":"$4.13600","currency":"USD"},{"qty":250,"price":"$3.92384","currency":"USD"},{"qty":500,"price":"$3.52086","currency":"USD"},{"qty":1000,"price":"$2.96940","currency":"USD"},{"qty":2000,"price":"$2.82093","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM7440_7441_7442.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Can ADUM7442ARQZ-RL7 be used for SPI signal isolation?","answer":"Yes. With two channels per direction (2/2 split), it handles the four signals of a standard SPI bus: SCLK and MOSI on one side, MISO and chip-select on the other. The 1Mbps data rate supports typical SPI clock speeds up to 1MHz, and the 75ns propagation delay leaves sufficient timing margin for most microcontroller SPI peripherals. For higher-speed SPI (above 1MHz), look at the ADuM140x series with faster data rates."},{"question":"Can ADUM7442ARQZ-RL7 be used with a 5V supply?","answer":"Yes. The part can be powered from a 5V supply on either side independently, or both sides from 5V, as long as each side stays within the 3V-5.5V range."},{"question":"Is ADUM7442ARQZ-RL7 a direct replacement for ADUM7442ARQZ?","answer":"The ADUM7442ARQZ-RL7 suffix indicates a Tape & Reel packaging variant of the same base device (ADUM7442ARQZ). The die, isolation rating, data rate, and package are identical — the -RL7 simply specifies the reel quantity and tape format for automated assembly. It is a direct functional replacement."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM7442ARQZ-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/ADUM7442ARQZ-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}}