{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX490CUA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX490CUA","canonicalUrl":"https://icboms.com/analog-devices/MAX490CUA","factsUrl":"https://icboms.com/api/mcp/products/MAX490CUA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX490CUA+, RS-422/RS-485 full-duplex transceiver, 1 driver / 1 receiver, 2.5 Mbps data rate, 4.75-5.25 V supply, 0°C to 70°C, 8-uMAX/uSOP surface-mount package.","salesMarkdown":"## RS-485 full-duplex transceiver for point-to-point links It runs on a 4.75 V to 5.25 V supply and pushes data at 2.5 Mbps — enough for industrial fieldbus links, PLC-to-drive communication, or building-automation backbone runs. ## Full-duplex wiring and receiver hysteresis Full-duplex operation means you need a dedicated twisted pair for transmit and another for receive — four wires total, plus ground. The 70 mV receiver hysteresis gives noise immunity on the bus; in a noisy industrial environment that margin helps the receiver stay clean through cable-coupled interference. ## Package and rework considerations Housed in an 8-uMAX/uSOP (0.118-inch body width, 3.00 mm), the MAX490CUA+ has a 0.65 mm pin pitch. The small thermal mass means it reflows quickly; a 260 °C peak profile with a 30-second above-liquidus window is safe. No exposed pad, so the hot-air station lifts the part cleanly without pad damage.","metaTitle":"MAX490CUA+ RS-422/RS-485 Full-Duplex Transceiver 2.5 Mbps","metaDescription":"Analog Devices MAX490CUA+ active RS-422/RS-485 full-duplex transceiver, 2.5 Mbps, 4.75-5.25 V supply, 0-70°C, 8-uMAX/uSOP.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"2.5Mbps","Mounting Type":"Surface Mount","Package / Case":"8-TSSOP, 8-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Receiver Hysteresis":"70 mV","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"8-uMAX/uSOP","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.16","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.16000","currency":"USD"},{"qty":10,"price":"$3.73700","currency":"USD"},{"qty":25,"price":"$3.53240","currency":"USD"},{"qty":100,"price":"$3.06150","currency":"USD"},{"qty":250,"price":"$2.90448","currency":"USD"},{"qty":500,"price":"$2.60620","currency":"USD"},{"qty":1000,"price":"$2.35500","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/602428fed3abfc9496453e492ef2d17c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"Is MAX490CUA+ compatible with MAX483 or other RS-485 transceivers?","answer":"The MAX490CUA+ is a full-duplex device, while the MAX483 is half-duplex. They share the same RS-485 electrical interface, so they can coexist on the same bus if you manage the driver-enable logic externally. For a direct full-duplex replacement, look at other MAX490 variants in the same family — the pinout and supply range are consistent."},{"question":"Can MAX490CUA+ be used in half-duplex mode?","answer":"No — the MAX490CUA+ is a dedicated full-duplex transceiver. It lacks a driver-enable pin, so the driver is always active. For half-duplex operation you need a part like the MAX483 or MAX485 that includes a driver-enable input."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX490CUA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX490CUA 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}}