{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC4310CMS-2#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC4310CMS-2PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC4310CMS-2PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC4310CMS-2%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC4310CMS-2#PBF, I²C digital isolator, 2 unidirectional channels, 400kHz data rate, magnetic coupling, 20kV/µs CMTI, 3V to 5.5V supply, 0°C to 70°C, 10-MSOP package, Tube.","salesMarkdown":"## I²C bus isolator with magnetic coupling The LTC4310CMS-2#PBF is a two-channel, unidirectional digital isolator from Analog Devices, purpose-built for I²C buses. It uses magnetic coupling to isolate the serial clock (SCL) and serial data (SDA) lines, with one channel per direction — side 1 to side 2 and side 2 to side 1. The data rate is rated at 400 kHz, which covers standard I²C fast mode but not high-speed mode (3.4 MHz). Supply voltage spans 3V to 5.5V, so it works directly on both 3.3V and 5V I²C domains without a level shifter. ## 20 kV/µs CMTI — why it matters for noisy environments Common-mode transient immunity is specified at a minimum 20 kV/µs. That's the isolator's ability to reject fast voltage spikes between the two ground domains — think motor drives, inverter stages, or any system where a high dV/dt event can couple into the I²C lines. A lower CMTI part would risk data corruption or latch-up in those conditions. This rating makes the LTC4310 a solid pick for isolating a microcontroller's I²C port from a noisy power stage or a remote sensor module. That limits this part to indoor, temperature-controlled environments: lab equipment, benchtop instruments, office peripherals, consumer electronics, and similar. If your design needs to live in an engine bay, a rooftop telecom enclosure, or a factory floor without climate control, you'll want an industrial-temperature isolator (-40°C to 85°C or wider). ## Package and hand-solderability It's hand-solderable with a decent iron and a fine tip — the 0.5 mm lead pitch is manageable for a maker or rework tech. No exposed pad, so no thermal-via stencil required. The part ships in a Tube, so if you're ordering a handful for a prototype, you won't get a whole reel. ## Lifecycle and sourcing It's also ROHS3 compliant, so no conflict with lead-free assembly requirements.","metaTitle":"LTC4310CMS-2#PBF I²C Digital Isolator, 400kHz, 10-MSOP","metaDescription":"LTC4310CMS-2#PBF I²C digital isolator from Analog Devices. 2 channels, 400kHz data rate, 20kV/µs CMTI, 3V to 5.5V supply. Active, ROHS3.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Digital Isolators"],"specifications":{"Type":"I²C","Package":"Tube","Data Rate":"400kHz","Technology":"Magnetic Coupling","Channel Type":"Unidirectional","Mounting Type":"Surface Mount","Isolated Power":"No","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","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-MSOP","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":"Does LTC4310CMS-2#PBF work with 3.3V I2C?","answer":"Yes. The supply voltage range is 3V to 5.5V, so it operates directly on a 3.3V I²C bus without an extra regulator or level shifter."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC4310CMS-2PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC4310CMS-2PBF 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}}