{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7520CDWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7520CDWR","canonicalUrl":"https://icboms.com/texas-instruments/ISO7520CDWR","factsUrl":"https://icboms.com/api/mcp/products/ISO7520CDWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7520CDWR, a general-purpose dual-channel digital isolator using capacitive coupling, rated 1 Mbps, 4243 Vrms isolation, 25 kV/µs CMTI, in a 16-SOIC wide-body package, surface-mount, -40°C to 105°C.","salesMarkdown":"## Two-channel capacitive isolator for industrial signal isolation The Texas Instruments ISO7520CDWR is a general-purpose digital isolator built around capacitive coupling technology, providing galvanic isolation for two unidirectional channels in a single 16-SOIC wide-body package. It supports a data rate up to 1 Mbps and delivers a rated isolation voltage of 4243 Vrms, with a minimum common-mode transient immunity of 25 kV/µs. The 1 Mbps data rate is the maximum signalling speed this part can sustain. If your application runs SPI at 10 MHz or a CAN FD bus at 5 Mbps, this isolator will bottleneck the link. It is sized for UARTs at 115.2 kbps, I²C at 400 kHz, or general-purpose GPIO isolation where the signal rate stays under 1 Mbps. The propagation delay is a symmetrical 14 ns max in both directions, and pulse-width distortion is held to 3.7 ns max, so edge symmetry is tight enough for most asynchronous serial protocols at this speed. ## Isolation rating and transient immunity for motor-drive environments With 4243 Vrms of isolation and a minimum common-mode transient immunity (CMTI) of 25 kV/µs, the ISO7520CDWR is rated to withstand the high dv/dt events common in motor-drive inverters, industrial power supplies, and solar inverters. The CMTI floor of 25 kV/µs means the output will not glitch when a fast common-mode step—like a switching node transition—couples across the isolation barrier. This is the spec that determines whether the isolator holds its state through a hard-switching event. The rise and fall times are a fast 1 ns typical, which keeps the edge sharp but also demands careful PCB layout to avoid coupling noise back into the input side. ## Supply rails and unidirectional channel configuration The channel arrangement is 2 inputs on side 1 and 0 inputs on side 2—meaning both channels drive from side 1 to side 2. This is a purely forward-direction isolator; there is no reverse channel. If you need bidirectional isolation (e.g., for an RS-485 transceiver interface), you would need a part with at least one reverse channel or use two of these back-to-back. ## Package, footprint, and sourcing note For a production BOM, this means no last-time-buy risk in the near term, and the ROHS3 compliance avoids the exemption-expiration headaches of earlier ROHS variants.","metaTitle":"ISO7520CDWR Digital Isolator, 2-Ch, 1Mbps, 4243Vrms, 16-SOIC","metaDescription":"TI ISO7520CDWR general-purpose digital isolator: 2 unidirectional channels, 1 Mbps data rate, 4243 Vrms isolation, 25 kV/µs CMTI, -40°C to 105°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Package":"Tape & Reel (TR); Cut Tape (CT)","Data Rate":"1Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"3.15V ~ 3.45V, 4.75V ~ 5.25V","Number of Channels":"2","Voltage - Isolation":"4243Vrms","Operating Temperature":"-40°C ~ 105°C","Inputs - Side 1/Side 2":"2/0","Rise / Fall Time (Typ)":"1ns, 1ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"3.7ns","Propagation Delay tpLH / tpHL (Max)":"14ns, 14ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.07","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.07000","currency":"USD"},{"qty":10,"price":"$3.65400","currency":"USD"},{"qty":25,"price":"$3.45440","currency":"USD"},{"qty":100,"price":"$2.99360","currency":"USD"},{"qty":250,"price":"$2.84012","currency":"USD"},{"qty":500,"price":"$2.54844","currency":"USD"},{"qty":1000,"price":"$2.14928","currency":"USD"},{"qty":2000,"price":"$2.04182","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/c8b55de2da001048d1023470952c668a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the maximum data rate of the ISO7520CDWR?","answer":"The maximum data rate is 1 Mbps. For higher-speed isolation needs (e.g., 10 Mbps or 100 Mbps), consider a different device in the ISO75xx family or a dedicated high-speed digital isolator."},{"question":"What are the alternatives to the ISO7520CDWR?","answer":"The closest pin-compatible alternative within the same family is the ISO7521CDWR, which offers the same package and isolation rating but with a different channel configuration (1 forward, 1 reverse instead of 2 forward). If you need bidirectional isolation, the ISO7521 is the direct cross-shop candidate."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7520CDWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7520CDWR 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}}