{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7731DW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7731DW","canonicalUrl":"https://icboms.com/texas-instruments/ISO7731DW","factsUrl":"https://icboms.com/api/mcp/products/ISO7731DW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7731DW, General Purpose digital isolator, 3-channel unidirectional, Capacitive Coupling, 100Mbps, 5000Vrms, 2.25V-5.5V, -55°C to 125°C, 16-SOIC, Tube.","salesMarkdown":"## What the 5000Vrms and 85kV/µs CMTI mean for your design The Texas Instruments ISO7731DW is a 3-channel, unidirectional digital isolator built with capacitive coupling technology. Its headline rating is 5000Vrms of isolation voltage, which qualifies it for reinforced insulation in mains-connected industrial equipment, motor drives, and medical systems where safety isolation is required. The 85kV/µs common-mode transient immunity is the spec that matters in noisy environments like inverter stages or relay-heavy panels — it keeps the data path clean when ground potentials jump. With a 100Mbps data rate, it handles SPI, UART, and isolated CAN buses without timing pressure. The supply range spans 2.25V to 5.5V, so it bridges 3.3V and 5V logic domains on the same chip — no secondary regulator needed for level translation.","metaTitle":"TI ISO7731DW Digital Isolator, 5000Vrms, 100Mbps, 16-SOIC","metaDescription":"Texas Instruments ISO7731DW general-purpose digital isolator with 5000Vrms isolation, 100Mbps data rate, -55°C to 125°C range. Active lifecycle.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":null,"productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Mfr":"Texas Instruments","Type":"General Purpose","Series":"-","Package":"Tube","Data Rate":"100Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SOIC (0.295\\\", 7.50mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2.25V ~ 5.5V","Number of Channels":"3","Base Product Number":"ISO7731","Voltage - Isolation":"5000Vrms","Operating Temperature":"-55°C~125°C","Inputs - Side 1/Side 2":"2/1","Rise / Fall Time (Typ)":"1.3ns, 1.4ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"4.9ns","Propagation Delay tpLH / tpHL (Max)":"16ns, 16ns","Common Mode Transient Immunity (Min)":"85kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.5400","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4bb33d1fcdd7379b943657a154225ada.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does ISO7731DW require an external isolated power supply?","answer":"No. The ISO7731DW does not include an integrated isolated DC/DC converter. You will need a separate isolated power supply on each side of the isolation barrier."},{"question":"Is ISO7731DW unidirectional or bidirectional?","answer":"The ISO7731DW is a unidirectional device — each channel drives data in one direction only. The channel configuration is 2 inputs on side 1 and 1 input on side 2."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7731DW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7731DW 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}}