{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7742FDBQR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7742FDBQR","canonicalUrl":"https://icboms.com/texas-instruments/ISO7742FDBQR","factsUrl":"https://icboms.com/api/mcp/products/ISO7742FDBQR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7742FDBQR, General Purpose Digital Isolator, Capacitive Coupling, 4-Channel Unidirectional, 100Mbps, 2500Vrms, 16-SSOP, -55 to 125°C.","salesMarkdown":"## Isolation barrier and channel assignment The Texas Instruments ISO7742FDBQR is a 4-channel, unidirectional digital isolator using capacitive coupling technology, rated for 2500Vrms isolation voltage. It delivers 100 Mbps data rate with 16 ns propagation delay and 2.4 ns rise/fall times, making it suitable for isolating SPI, UART, or general-purpose digital signals in industrial and automotive environments. Channel configuration is 2 inputs on side 1 and 2 inputs on side 2, giving a 2/2 split that supports bidirectional isolation for interfaces like RS-485 or CAN where data flows both ways across the barrier. Common-mode transient immunity is rated at a minimum 85 kV/µs. In motor-drive or inverter applications where fast-switching IGBTs or SiC FETs create high dV/dt across the isolation barrier, this rating ensures the output doesn't glitch or lose data. The 85 kV/µs floor comfortably handles the 50–75 kV/µs edges typical in 600 V-class industrial drives. Pulse-width distortion is max 4.9 ns, which keeps the duty-cycle error small enough for PWM isolation or timing-sensitive links. ## Temperature range and supply flexibility Operating temperature spans -55°C to 125°C, covering military-grade requirements for avionics, downhole instrumentation, and satellite bus electronics. Supply voltage accepts 2.25 V to 5.5 V on each side independently, so it can bridge a 3.3 V MCU domain to a 5 V field-side interface without a level shifter. ## Package and mounting The small footprint suits space-constrained multichannel isolation banks on a single PCB.","metaTitle":"ISO7742FDBQR Digital Isolator, 2500Vrms, 100Mbps, 16-SSOP","metaDescription":"Texas Instruments ISO7742FDBQR general-purpose capacitive isolation, 2500Vrms, 100Mbps, 4-ch unidirectional, -55 to 125°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":"100Mbps","Technology":"Capacitive Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"16-SSOP (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"2.25V ~ 5.5V","Number of Channels":"4","Voltage - Isolation":"2500Vrms","Operating Temperature":"-55°C ~ 125°C","Inputs - Side 1/Side 2":"2/2","Rise / Fall Time (Typ)":"2.4ns, 2.4ns","Supplier Device Package":"16-SSOP","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":"$3.02","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.02000","currency":"USD"},{"qty":10,"price":"$2.71600","currency":"USD"},{"qty":25,"price":"$2.56800","currency":"USD"},{"qty":100,"price":"$2.22550","currency":"USD"},{"qty":250,"price":"$2.11140","currency":"USD"},{"qty":500,"price":"$1.89456","currency":"USD"},{"qty":1000,"price":"$1.59782","currency":"USD"},{"qty":2500,"price":"$1.09080","currency":"USD"},{"qty":5000,"price":"$1.05040","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/7d3b9b841350035d4a0188e814624994.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ISO7742FDBQR available in surface mount package?","answer":"Yes, it is surface mount only, in a 16-pin SSOP package."},{"question":"What is the data rate of ISO7742FDBQR?","answer":"The data rate is 100 Mbps."},{"question":"Does ISO7742FDBQR have an equivalent from other manufacturers?","answer":"No direct pin-compatible equivalent from other manufacturers is listed in the record."},{"question":"Is ISO7742FDBQR RoHS compliant?","answer":"Yes, it is ROHS3 compliant."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7742FDBQR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7742FDBQR 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}}