{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM7440ARQZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM7440ARQZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM7440ARQZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM7440ARQZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM7440ARQZ iCoupler digital isolator, General Purpose, 4-channel unidirectional, 1 Mbps, 1000 Vrms isolation, 3 V to 5.5 V supply, 16-QSOP, -40°C to 105°C.","salesMarkdown":"## Four-channel unidirectional isolator for 1 Mbps signal paths All four channels are unidirectional with inputs on side 1 only, making it a straight downstream isolator for MCU-to-peripheral or sensor-to-controller links. ## 1 Mbps data rate and 75 ns propagation delay — timing budget for the bus At 1 Mbps the bit period is 1 µs, and the 75 ns propagation delay consumes 7.5% of that window. That leaves 92.5% for cable delay, receiver setup, and clock jitter — comfortable for most board-level isolation but worth checking if the link runs through long cables or multiple isolators in series. The 25 ns pulse-width distortion means the on-time and off-time differ by at most 25 ns, which matters for PWM or duty-cycle-sensitive signals. ## 1000 Vrms isolation and 15 kV/µs CMTI — where it fits The 1000 Vrms isolation rating is a basic single-insulation level, not reinforced or double insulation. It is suited for isolating low-voltage control signals within the same enclosure — separating a 3.3 V MCU from a 5 V sensor, or breaking ground loops between two PCB sections. The 15 kV/µs common-mode transient immunity (minimum) keeps data intact when fast voltage transients slam across the barrier, which is the typical failure mode in motor drives, inverters, and switching power supplies. The 105°C upper limit is the junction temperature; ambient plus self-heating from the 1 Mbps switching current must stay under that. ## Package and footprint Surface-mount only. The 1.27 mm pitch is standard for this footprint class and routes easily on two-layer boards. ## Lifecycle and sourcing ROHS3 compliant. It is a current-production part suitable for new designs.","metaTitle":"ADUM7440ARQZ Digital Isolator, 1 Mbps, 4-Ch, 1000 Vrms","metaDescription":"ADUM7440ARQZ iCoupler 4-channel unidirectional digital isolator, 1 Mbps data rate, 1000 Vrms isolation, 3V-5.5V supply, -40°C to 105°C.","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":"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":2500,"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 maximum data rate for ADUM7440ARQZ?","answer":"The maximum data rate is 1 Mbps. Propagation delay is 75 ns max each way, and pulse-width distortion is 25 ns max."},{"question":"Is ADUM7440ARQZ compatible with 5V logic?","answer":"Yes."},{"question":"What is a replacement or equivalent for ADUM7440ARQZ?","answer":"The ADUM7440ARQZ is a current-production part with no official replacement. For a pin-compatible alternative within the iCoupler family, check the ADuM7440 series variants with different data rates or channel configurations — verify the exact channel direction and speed before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM7440ARQZ","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 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}}