{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM7442ARQZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM7442ARQZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM7442ARQZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM7442ARQZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices iCoupler ADUM7442ARQZ, General Purpose digital isolator, 4-channel unidirectional, 1Mbps, 1000Vrms isolation, 3V~5.5V supply, -40°C~105°C, 16-SSOP/16-QSOP, Tube.","salesMarkdown":"The ADUM7442ARQZ is a 4-channel, unidirectional digital isolator from the iCoupler family, built around magnetic coupling rather than optocoupler LEDs. Its 1000Vrms isolation rating suits basic galvanic isolation for control interfaces in industrial sensors, PLC I/O modules, and isolated SPI/UART links where reinforced safety isolation is not required. The 1Mbps data rate with 75ns propagation delay (max) handles most low-to-mid-speed communication without timing closure headaches — but it will not keep up with high-speed SPI above 10 MHz or full-speed USB. Four channels in a 2/2 input-side/side-2 split give you two isolated transmit and two receive paths in one package, saving board space versus two dual-channel isolators. The unidirectional channel type means each channel's direction is fixed — plan your signal flow accordingly; this is not a direction-configurable part like the ADUM1440 series. ## 3V to 5.5V supply — single-rail or mixed-voltage domains The wide supply range from 3V to 5.5V on both sides lets the ADUM7442ARQZ bridge a 3.3V MCU domain to a 5V peripheral without external level shifters, as long as each side's VDD stays within that window. If your design runs one side at 2.5V or 1.8V, this part will not work — look at the ADuM7440 family with lower minimum supply. The 3V floor also means a 3.3V rail with 5% tolerance (3.135V min) still holds margin; a 3.0V rail at end-of-life may drop below the spec. ## 15kV/µs CMTI — noise rejection in motor drives and inverters Common-mode transient immunity of 15kV/µs (minimum) is the figure that matters when the isolator sits across a noisy power stage — motor-drive phase legs, SMPS primary-to-secondary, or relay-coil switching. If your system sees dV/dt edges faster than that, data corruption or latch-up can occur. For most industrial 24V PLC environments and 400V motor drives with proper snubbing, 15kV/µs is adequate; for SiC/GaN fast-switching stages above 50kV/µs, step up to the ADuM3400 series with 25kV/µs or higher. Housed in a 16-SSOP (3.90mm width) with an equivalent 16-QSOP supplier package, the footprint is compact enough for dense multichannel isolation banks.","metaTitle":"ADUM7442ARQZ iCoupler Digital Isolator, 1Mbps, 1000Vrms","metaDescription":"ADUM7442ARQZ 4-channel unidirectional digital isolator. 1Mbps data rate, 1000Vrms isolation, 3V-5.5V supply. Active lifecycle, 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":"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":2500,"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":"Is ADUM7442ARQZ an equivalent or replacement for ADUM7441?","answer":"The ADUM7441 is a pin-compatible sibling in the same package and isolation rating, but its channel direction assignment differs — the ADUM7441 has a 3/1 or 1/3 split depending on variant, while the ADUM7442ARQZ is fixed at 2/2 unidirectional. Verify the signal direction map against your design before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM7442ARQZ","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 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}}