{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7340CDW","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7340CDW","canonicalUrl":"https://icboms.com/texas-instruments/ISO7340CDW","factsUrl":"https://icboms.com/api/mcp/products/ISO7340CDW","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7340CDW, General Purpose digital isolator, 4-channel unidirectional, Capacitive Coupling, 25Mbps data rate, 3000Vrms isolation, 3V to 5.5V supply, -40°C to 125°C, 16-SOIC package, Tube.","salesMarkdown":"The Texas Instruments ISO7340CDW is a 4-channel, unidirectional digital isolator using capacitive coupling to provide 3000Vrms galvanic isolation across the barrier. It is a general-purpose part intended for breaking ground loops and protecting low-voltage logic on one side from high-voltage transients or noise on the other. Typical applications include industrial fieldbus interfaces (RS-485, CAN), isolated SPI or UART links, motor-drive control signals, and power-supply feedback paths where the signal rate stays within 25Mbps. The wide supply range of 3V to 5.5V lets it bridge 3.3V and 5V domains without a separate level shifter. ## Key ratings that decide the fit The 3000Vrms isolation voltage is the safety rating for basic insulation in mains-connected equipment — it covers reinforced isolation in many 240VAC applications when used per the datasheet clearance rules. The 25Mbps data rate is the maximum guaranteed toggle rate across the barrier; for a 10MHz SPI clock or a 12MHz UART bit stream this leaves margin, but a 30Mbps LVDS link would exceed it. Common-mode transient immunity of 25kV/µs is the key spec for motor-drive and inverter environments: fast-switching IGBTs or SiC FETs can dump several kV/µs across the isolation barrier, and this part holds its output state through that edge without glitching. Propagation delay is 58ns max in both directions, which matters for timing-closure in a control loop — a 58ns one-way delay plus 4ns pulse-width distortion means a 120ns round-trip budget for a closed-loop PWM update. ## Temperature grade and package The 16-SOIC wide-body package provides the 8mm creepage typical for 3000Vrms reinforced isolation — the narrow-body SOIC-8 would not meet the same clearance. Surface-mount assembly with standard reflow profiles;. ## Lifecycle and sourcing posture It is ROHS3 compliant. No second-source or pin-compatible alternate is listed in the ledger; if dual-sourcing is required, a parametric search for 4-channel, unidirectional, 3000Vrms, 25Mbps digital isolators in a 16-SOIC wide-body package would yield candidates from other vendors, but pin compatibility should be verified against the respective datasheets.","metaTitle":"TI ISO7340CDW Digital Isolator, 3000Vrms, 25Mbps, 4-Ch","metaDescription":"Texas Instruments ISO7340CDW general-purpose digital isolator: 3000Vrms isolation, 25Mbps data rate, 4 unidirectional channels, -40°C to 125°C, 16-SOIC.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"General Purpose","Package":"Tube","Data Rate":"25Mbps","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":"3V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"3000Vrms","Operating Temperature":"-40°C ~ 125°C","Inputs - Side 1/Side 2":"4/0","Rise / Fall Time (Typ)":"2.1ns, 1.7ns","Supplier Device Package":"16-SOIC","Pulse Width Distortion (Max)":"4ns","Propagation Delay tpLH / tpHL (Max)":"58ns, 58ns","Common Mode Transient Immunity (Min)":"25kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.76","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.76000","currency":"USD"},{"qty":10,"price":"$6.06700","currency":"USD"},{"qty":25,"price":"$5.73600","currency":"USD"},{"qty":100,"price":"$4.97110","currency":"USD"},{"qty":250,"price":"$4.71620","currency":"USD"},{"qty":500,"price":"$4.23184","currency":"USD"},{"qty":1000,"price":"$3.60750","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/0e6e2773355dcee7aca9b90bd03e1b7a.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does ISO7340CDW require an isolated power supply?","answer":"No — the ISO7340CDW does not include an integrated isolated DC-DC converter. Both sides of the barrier must be powered from separate, locally regulated supplies (3V to 5.5V each,). For applications needing isolated power, an external isolated module or a part with integrated power (such as the ISO7741DW) would be required."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7340CDW","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7340CDW 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}}