{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4310CDD-1#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4310CDD-1PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4310CDD-1PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4310CDD-1%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC4310CDD-1#PBF, I²C digital isolator, 2-channel unidirectional, magnetic coupling, 100 kHz data rate, 20 kV/µs CMTI, 3V to 5.5V supply, 0°C to 70°C, 10-WFDFN exposed pad package.","salesMarkdown":"## I²C bus isolator with magnetic coupling — what it does The Analog Devices LTC4310CDD-1#PBF is a 2-channel unidirectional digital isolator designed specifically for I²C buses. It uses magnetic coupling to provide galvanic isolation between the primary and secondary sides of the I²C interface, while maintaining the 100 kHz standard-mode data rate. The part supports a supply range of 3V to 5.5V, so it can bridge a 3.3V controller to a 5V peripheral or vice versa without a separate level shifter. ## 20 kV/µs CMTI — where it matters The minimum common-mode transient immunity of 20 kV/µs means this isolator can reject fast voltage transients between the two grounds — a typical requirement when the I²C bus crosses a motor-drive boundary, a power-supply isolation barrier, or any environment where ground potential shifts rapidly. The 1 ns typical rise and fall times keep the I²C signal edges clean at 100 kHz, but the fast edges also mean the layout needs care: keep the isolation barrier clear of noisy traces to avoid coupling transients across the package. If the design needs -40°C to 85°C or wider, look at the industrial-temperature variants in the LTC4310 family. ## Package and footprint — 10-DFN with exposed pad The LTC4310CDD-1#PBF comes in a 10-WFDFN exposed pad package (3x3 mm body). The DFN package is MSL 1, so no bake is needed before reflow if the moisture barrier bag is intact. Surface-mount only; no through-hole option exists.","metaTitle":"LTC4310CDD-1#PBF I²C Digital Isolator, 100 kHz, 10-DFN","metaDescription":"LTC4310CDD-1#PBF is an active I²C digital isolator with magnetic coupling, 20kV/µs CMTI, 3V-5.5V supply, 100 kHz data rate, 0°C to 70°C.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"I²C","Package":"Tube","Data Rate":"100kHz","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"10-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"3V ~ 5.5V","Number of Channels":"2","Operating Temperature":"0°C ~ 70°C","Inputs - Side 1/Side 2":"1/1","Rise / Fall Time (Typ)":"1ns, 1ns","Supplier Device Package":"10-DFN (3x3)","Common Mode Transient Immunity (Min)":"20kV/µs"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.84","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.84000","currency":"USD"},{"qty":10,"price":"$4.35100","currency":"USD"},{"qty":25,"price":"$4.11320","currency":"USD"},{"qty":100,"price":"$3.56480","currency":"USD"},{"qty":250,"price":"$3.38200","currency":"USD"},{"qty":500,"price":"$3.03464","currency":"USD"},{"qty":1000,"price":"$2.55934","currency":"USD"},{"qty":2500,"price":"$2.43137","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/431012fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is LTC4310CDD-1#PBF compatible with 3.3V and 5V I²C?","answer":"Yes. The supply range of 3V to 5.5V covers both 3.3V and 5V I²C buses. You can power Side 1 at 3.3V and Side 2 at 5V (or vice versa) to isolate and level-shift between the two voltage domains. The 100 kHz data rate is standard-mode I²C — it does not support fast-mode 400 kHz."},{"question":"What is the difference between LTC4310 and LTC4311?","answer":"The LTC4310 is a 2-channel unidirectional I²C digital isolator with magnetic coupling, rated for 100 kHz. The LTC4311 is a different device — it is an I²C accelerator / bus buffer that extends the bus capacitance limit, not an isolator. They serve different functions: the LTC4310 provides galvanic isolation; the LTC4311 does not. They are not direct substitutes."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4310CDD-1PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4310CDD-1PBF 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}}