{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7741DWR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7741DWR","canonicalUrl":"https://icboms.com/texas-instruments/ISO7741DWR","factsUrl":"https://icboms.com/api/mcp/products/ISO7741DWR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7741DWR general-purpose digital isolator, capacitive coupling, 4 unidirectional channels (3/1), 100 Mbps data rate, 5000 Vrms isolation, 2.25 V to 5.5 V supply, -55°C to 125°C, 16-SOIC package.","salesMarkdown":"The Texas Instruments ISO7741DWR is a general-purpose, 4-channel digital isolator using capacitive coupling technology to pass signals across a galvanic isolation barrier. It is designed for applications that require reinforced insulation up to 5000 Vrms, such as industrial fieldbus interfaces, motor-drive feedback paths, isolated SPI/UART links, and medical equipment where patient-contact isolation is mandated. ## Data rate and timing — what 100 Mbps means for the bus With a 100 Mbps data rate and a maximum propagation delay of 16 ns (both directions), this isolator handles high-speed SPI clocks, parallel address/data buses, and fast UART links without adding a full clock cycle of latency. The 2.4 ns typical rise/fall time keeps signal edges clean enough for most PCB traces under 15 cm, but you still want to match trace lengths on a multi-bit bus to avoid skew. Pulse-width distortion is held to 4.9 ns max, so duty-cycle-sensitive signals like PWM commands from an MCU to a gate driver arrive with their mark-space ratio largely intact. ## Isolation and transient immunity — the noise-floor gate The 5000 Vrms isolation rating satisfies reinforced insulation requirements per IEC 60747-5-5 and VDE 0884-11, making it suitable for mains-connected industrial drives and medical devices. The common-mode transient immunity of 85 kV/µs minimum is the spec that matters when the isolator sits between a noisy inverter phase leg and a sensitive controller — it prevents the fast voltage slew on the motor cable from coupling across the barrier as a false edge. In a motor-drive BOM, this CMTI figure is often the deciding factor between a capacitive-coupling isolator and an optocoupler. That means it can be specified for avionics black boxes, downhole instrumentation, engine-bay control modules, and outdoor telecom cabinets without a temperature-derating exception. ## Channel configuration and supply flexibility The 3/1 channel split (three channels from Side 1 to Side 2, one channel from Side 2 to Side 1) is a common arrangement for isolating an SPI bus (SCLK, MOSI, CS out, MISO back) or a UART with flow control. All channels are unidirectional, so a bidirectional signal like I2C SDA needs two channels or an external direction-control scheme. The supply voltage on each side is independent, allowing a 3.3 V MCU domain on Side 1 to talk to a 5 V peripheral on Side 2 without a separate level translator — just power each side from its respective rail.","metaTitle":"TI ISO7741DWR Digital Isolator, 100 Mbps, 5000 Vrms","metaDescription":"Texas Instruments ISO7741DWR general-purpose capacitive-coupling digital isolator: 4 channels, 100 Mbps data rate, 5000 Vrms isolation, -55°C to 125°C.","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":"Tape & Reel (TR); Cut Tape (CT)","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":"4","Base Product Number":"ISO7741","Voltage - Isolation":"5000Vrms","Operating Temperature":"-55°C~125°C","Inputs - Side 1/Side 2":"3/1","Rise / Fall Time (Typ)":"2.4ns, 2.4ns","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":"$3.7100","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4823b6e05bd363491c04665aa8e36ed1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ISO7741DWR suitable for 3.3 V systems?","answer":"Yes. The 100 Mbps data rate and 16 ns propagation delay are specified across the full supply range, so performance at 3.3 V matches the datasheet limits."},{"question":"What is the data rate and isolation voltage of ISO7741DWR?","answer":"The ISO7741DWR supports a data rate of 100 Mbps and provides 5000 Vrms galvanic isolation. These are the two headline ratings that define its fit for high-speed isolated communication in industrial and medical applications."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7741DWR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7741DWR 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}}