{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM7440ARQZ-RL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM7440ARQZ-RL7","canonicalUrl":"https://icboms.com/analog-devices/ADUM7440ARQZ-RL7","factsUrl":"https://icboms.com/api/mcp/products/ADUM7440ARQZ-RL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM7440ARQZ-RL7, iCoupler® series, general-purpose digital isolator, 4 unidirectional channels, 1 Mbps data rate, 1000 Vrms isolation, 3 V to 5.5 V supply, -40°C to 105°C, 16-QSOP package.","salesMarkdown":"## What this isolator brings to the board The ADUM7440ARQZ-RL7 is a 4-channel, unidirectional digital isolator from Analog Devices' iCoupler® family, built around magnetic coupling technology. It's a general-purpose part — no integrated DC-DC converter, no fancy protocol handling — just four clean isolation channels rated for 1000 Vrms and a 1 Mbps data rate. The 16-QSOP package (3.90 mm wide) is a compact footprint for industrial control, motor-drive feedback, or any board where you need to break a ground loop without sacrificing signal integrity. ## 1 Mbps and 1000 Vrms — the practical limits The 1 Mbps data rate is fine for SPI-like clocks up to a few MHz, UART, or general-purpose GPIO isolation. If you need faster signalling (say, 10 Mbps+ for a high-speed ADC interface), this isn't the part — look at the ADuM140x or ADuM340x siblings. The 1000 Vrms isolation is a basic reinforced rating for industrial environments; it won't cover mains-voltage isolation (250 Vrms working) but handles 24 V to 48 V control loops with margin. Propagation delay is 75 ns max each way, with 25 ns pulse-width distortion — tight enough for most synchronous interfaces, but budget the skew if you're running a multi-channel parallel bus. ## CMTI and the motor-drive reality Common-mode transient immunity is rated at 15 kV/µs minimum. That's the number that matters when you're isolating a gate-driver signal or a current-sense output on a motor-drive board with fast-switching IGBTs or SiC FETs. Below that threshold, the isolator might glitch and send a false pulse to the controller. The 15 kV/µs figure is solid for most industrial drives; if your switching edges exceed that, you'll need a reinforced or higher-CMTI part. Rise/fall times are 2 ns typical, so the output edges are crisp — good for keeping timing jitter low. ## Temperature range and field survival Not AEC-Q100 qualified (no automotive-grade marking in the data), but the temperature range overlaps with many under-hood applications — just don't expect the extended reliability testing. The 16-QSOP package is surface-mount; no exposed pad, so rework with hot air is straightforward. MSL is not listed here, but typical iCoupler parts are MSL 1 or 3 — treat it as MSL 3 unless confirmed otherwise, and bake if the moisture barrier bag has been open. ## Sourcing and lifecycle posture ADI lists the ADUM7440ARQZ-RL7 as Active. The part is ROHS3 compliant. No official second source listed, but the iCoupler family has broad pin-compatible options (e.g., ADuM1400 series) if you need a cross for dual-sourcing.","metaTitle":"ADUM7440ARQZ-RL7 iCoupler Digital Isolator, 1 Mbps","metaDescription":"ADUM7440ARQZ-RL7 general-purpose 4-channel digital isolator, 1 Mbps data rate, 1000 Vrms isolation, industrial temp range. Active lifecycle, ROHS3 compliant.","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":"4/0","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":"$5.35","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.35000","currency":"USD"},{"qty":10,"price":"$4.80800","currency":"USD"},{"qty":25,"price":"$4.54480","currency":"USD"},{"qty":100,"price":"$3.93900","currency":"USD"},{"qty":250,"price":"$3.73700","currency":"USD"},{"qty":500,"price":"$3.35320","currency":"USD"},{"qty":1000,"price":"$2.82800","currency":"USD"},{"qty":2000,"price":"$2.68660","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/ADuM7440_7441_7442.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest pin-compatible alternative to ADUM7440ARQZ-RL7?","answer":"Within the iCoupler family, the ADuM1400 series offers similar 4-channel unidirectional isolation with higher data rates (up to 90 Mbps or 150 Mbps depending on variant) and the same 16-QSOP footprint. The ADuM1400ARWZ (1 Mbps) is a direct speed match. Verify pinout and supply range against the datasheet before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM7440ARQZ-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/ADUM7440ARQZ-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}}