{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADUM7643CRQZ","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADUM7643CRQZ","canonicalUrl":"https://icboms.com/analog-devices/ADUM7643CRQZ","factsUrl":"https://icboms.com/api/mcp/products/ADUM7643CRQZ","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADUM7643CRQZ iCoupler, General Purpose digital isolator, 6 unidirectional channels (3/3), 25 Mbps, 1000 Vrms isolation, 15 kV/µs CMTI, 3 V to 5.5 V supply, -40°C to 105°C, 20-QSOP.","salesMarkdown":"The ADUM7643CRQZ is a six-channel, unidirectional digital isolator from the Analog Devices iCoupler family. It uses magnetic coupling to pass digital signals across a 1000 Vrms isolation barrier at up to 25 Mbps. Packaged in a 20-lead QSOP (the supplier device package is 20-QSOP), it's a surface-mount part. No isolated power is generated on-chip — you supply Vdd on both sides separately. The 25 Mbps data rate and 50 ns max propagation delay (tpLH / tpHL) put this part in the mid-speed isolator tier. The 15 kV/µs common-mode transient immunity (CMTI) is the standout spec for noisy environments. In a motor-drive or inverter application, fast switching of IGBTs or SiC MOSFETs can inject large dV/dt common-mode spikes across the isolation barrier. A CMTI of 15 kV/µs means the part will not latch up or corrupt data under those transients — a key reliability factor for industrial drives and solar inverters. ## Unidirectional channels — watch the direction mapping Because the channels are unidirectional, the PCB layout must respect the fixed direction: three inputs on side 1, three on side 2. Reversing a channel on the board will not work — you need the ADUM7642 or ADUM7641 variants if your signal count or direction split is different. For bidirectional signals like I²C SDA, you would need two channels or an external direction-control circuit. ## Lifecycle and supply position It is ROHS3 compliant. For production runs, the active status means no forced redesign on the horizon.","metaTitle":"ADUM7643CRQZ iCoupler Digital Isolator, 25 Mbps, 6-Ch","metaDescription":"ADUM7643CRQZ general-purpose digital isolator: 6 unidirectional channels, 25 Mbps data rate, 1000 Vrms isolation, 15 kV/µs CMTI. Active status, 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":"25Mbps","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"20-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"6","Voltage - Isolation":"1000Vrms","Operating Temperature":"-40°C ~ 105°C","Inputs - Side 1/Side 2":"3/3","Rise / Fall Time (Typ)":"2ns, 2ns","Supplier Device Package":"20-QSOP","Pulse Width Distortion (Max)":"6ns","Propagation Delay tpLH / tpHL (Max)":"50ns, 50ns","Common Mode Transient Immunity (Min)":"15kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$9.28","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$9.28000","currency":"USD"},{"qty":10,"price":"$8.38200","currency":"USD"},{"qty":25,"price":"$7.99200","currency":"USD"},{"qty":100,"price":"$6.93950","currency":"USD"},{"qty":250,"price":"$6.62760","currency":"USD"},{"qty":500,"price":"$6.04284","currency":"USD"},{"qty":1000,"price":"$5.26311","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/93e0a1fb345b95b19dbf42120391027c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the ADUM7643CRQZ require an external isolated power supply?","answer":"Yes — the ADUM7643CRQZ does not generate isolated power on-chip. You must supply Vdd on both sides of the isolation barrier separately."},{"question":"How many channels does the ADUM7643CRQZ have and what is the direction split?","answer":"It has 6 unidirectional channels, split 3 on side 1 and 3 on side 2. The direction is fixed — three inputs on side 1, three on side 2. This part is not a bidirectional isolator."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADUM7643CRQZ","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADUM7643CRQZ 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}}