{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3040EUE+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX3040EUE","canonicalUrl":"https://icboms.com/analog-devices/MAX3040EUE","factsUrl":"https://icboms.com/api/mcp/products/MAX3040EUE%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX3040EUE+, RS-422/RS-485 quad driver, 250 kbps, 4.75V–5.25V supply, -40°C to 85°C, 16-TSSOP","salesMarkdown":"## Quad RS-422/RS-485 line driver in 16-TSSOP The MAX3040EUE+ is a dedicated quad driver for RS-422 and RS-485 networks, handling four differential outputs from a single 5V rail. With a data rate of 250 kbps, it fits industrial fieldbus links and PLC backplanes where signal integrity over twisted-pair cabling matters more than raw speed. The 16-TSSOP package (4.40 mm body width) keeps the board footprint small. ## Supply rail and temperature envelope The supply range is tight at 4.75V to 5.25V — this is a pure 5V part. Do not feed it 3.3V; the outputs won't swing enough to meet RS-485 thresholds. If your BOM runs mixed 3.3V/5V logic, a level translator sits between the controller and this driver. The 16-TSSOP's thermal impedance is moderate; at 85°C ambient the junction stays within limits as long as the output current per channel stays under the datasheet's short-circuit limit. ## Active production — no obsolescence risk For a repair bench or a new design, you are not chasing sunset inventory. The MAX3040EUE+ is ROHS3 compliant, which clears it for lead-free assembly lines without exemption paperwork.","metaTitle":"MAX3040EUE+ RS-422/RS-485 Driver","metaDescription":"MAX3040EUE+ is an active RS-422/RS-485 quad driver in 16-TSSOP, 250 kbps, 4.75V–5.25V supply, -40°C to 85°C. Sourced per RFQ.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"Driver","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"250kbps","Mounting Type":"Surface Mount","Package / Case":"16-TSSOP (0.173\\\", 4.40mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"16-TSSOP","Number of Drivers/Receivers":"4/0"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$7.53","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$7.53000","currency":"USD"},{"qty":10,"price":"$6.79800","currency":"USD"},{"qty":25,"price":"$6.48160","currency":"USD"},{"qty":100,"price":"$5.62800","currency":"USD"},{"qty":250,"price":"$5.37508","currency":"USD"},{"qty":500,"price":"$4.90082","currency":"USD"},{"qty":1000,"price":"$4.74273","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/max3040-max3045.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Does the MAX3040EUE+ work with 3.3V logic?","answer":"No — the supply voltage range is 4.75V to 5.25V. The logic inputs expect 5V levels; 3.3V drive will not reliably switch the outputs. Use a level translator if your controller runs at 3.3V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX3040EUE","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX3040EUE 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}}