{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ISO7741DBQR","brand":"Texas Instruments","brandSlug":"texas-instruments","productSlug":"ISO7741DBQR","canonicalUrl":"https://icboms.com/texas-instruments/ISO7741DBQR","factsUrl":"https://icboms.com/api/mcp/products/ISO7741DBQR","rawCanonicalId":null},"summary":{"shortDescription":"Texas Instruments ISO7741DBQR, General Purpose digital isolator, Capacitive Coupling, 4-channel unidirectional, 100Mbps data rate, 3000Vrms isolation, 2.25V~5.5V supply, -55°C~125°C, 16-SSOP package.","salesMarkdown":"## What this isolator covers — and what it doesn't The Texas Instruments ISO7741DBQR is a 4-channel capacitive-coupling digital isolator rated for 3000 Vrms isolation and 100 Mbps data rate. It uses capacitive coupling technology, so there's no LED aging or current-transfer-ratio drift you'd budget for with optocouplers. The 3/1 channel direction split (three forward, one reverse) fits SPI or isolated I²C links where the clock and data lines run in opposite directions. Supply range from 2.25 V to 5.5 V means it can sit on either side of a mixed-voltage boundary without a separate level shifter. ## 85 kV/µs CMTI — why it matters for motor drives and inverters Common-mode transient immunity is rated at 85 kV/µs minimum. In a motor-drive or switched-mode power supply, the switching node can slam the barrier with several hundred volts in a few nanoseconds. If the isolator's CMTI is too low, data corrupts or the output latches. 85 kV/µs is well into the range needed for SiC and GaN gate-drive feedback paths, not just IGBT-based drives. ## Propagation delay and pulse-width distortion — timing budget check Maximum propagation delay is 16 ns in either direction, and pulse-width distortion is held to 4.9 ns. For a 100 Mbps link (10 ns bit period), 16 ns eats into the timing margin — you'll want to verify setup/hold at the receiver, especially if you're daisy-chaining multiple isolators. Rise and fall times are symmetrical at 3.9 ns typical, which keeps the eye open without excessive ringing. ## Temperature range and package — where it goes Operating temperature spans -55°C to 125°C, covering military, avionics, and downhole applications as well as industrial outdoor gear.","metaTitle":"TI ISO7741DBQR Digital Isolator, 100 Mbps, 3000 Vrms","metaDescription":"Texas Instruments ISO7741DBQR general-purpose digital isolator: 100 Mbps data rate, 3000 Vrms isolation, 85 kV/µs CMTI, -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-SSOP (0.154\\\", 3.90mm Width)","Product Status":"Active","lifecycle_stage":"eol_hot","Voltage - Supply":"2.25V ~ 5.5V","Number of Channels":"4","Base Product Number":"ISO7741","Voltage - Isolation":"3000Vrms","Operating Temperature":"-55°C~125°C","Inputs - Side 1/Side 2":"3/1","Rise / Fall Time (Typ)":"3.9ns, 3.9ns","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":"$3.1700","stockQuantity":0,"priceTiers":null},"links":{"datasheetUrl":"https://cdn.icboms.com/4823b6e05bd363491c04665aa8e36ed1.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is ISO7741DBQR obsolete?","answer":"No. No discontinuation notice has been issued."},{"question":"What is the difference between ISO7741DBQR and ISO7740DBQR?","answer":"The ISO7741 has a 3/1 channel direction split (three forward, one reverse), while the ISO7740 is a 4/0 configuration (all four channels forward). Choose the ISO7741 when you need one reverse channel for a bidirectional signal like SPI MISO or I²C data."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/texas-instruments/ISO7741DBQR","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/texas-instruments/ISO7741DBQR 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}}