{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX491CSD+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX491CSD","canonicalUrl":"https://icboms.com/analog-devices/MAX491CSD","factsUrl":"https://icboms.com/api/mcp/products/MAX491CSD%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX491CSD+ RS422/RS485 transceiver, full duplex, 2.5Mbps data rate, 1/1 driver/receiver, 14-SOIC surface mount, 4.75V-5.25V supply, 0°C to 70°C.","salesMarkdown":"## RS422/RS485 full-duplex transceiver at 2.5 Mbps The MAX491CSD+ is a single-channel RS422/RS485 transceiver from Analog Devices, supporting full-duplex communication at 2.5 Mbps over a single twisted pair or four-wire bus. The 70 mV receiver hysteresis provides noise immunity on long cable runs where ground potential differences can introduce several hundred millivolts of offset between nodes.","metaTitle":"MAX491CSD+ RS422/RS485 Transceiver, 2.5Mbps, Full Duplex","metaDescription":"MAX491CSD+ RS422/RS485 full-duplex transceiver, 2.5Mbps data rate, 4.75V-5.25V supply, 14-SOIC. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"2.5Mbps","Mounting Type":"Surface Mount","Package / Case":"14-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Receiver Hysteresis":"70 mV","Operating Temperature":"0°C ~ 70°C","Supplier Device Package":"14-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$4.2","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$4.20000","currency":"USD"},{"qty":10,"price":"$3.77400","currency":"USD"},{"qty":25,"price":"$3.56800","currency":"USD"},{"qty":100,"price":"$3.09210","currency":"USD"},{"qty":250,"price":"$2.93356","currency":"USD"},{"qty":500,"price":"$2.63226","currency":"USD"},{"qty":1000,"price":"$2.21998","currency":"USD"},{"qty":2500,"price":"$2.10898","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/602428fed3abfc9496453e492ef2d17c.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data rate and duplex mode of MAX491CSD+?","answer":"It is a full-duplex transceiver with a 2.5 Mbps data rate, supporting both RS422 and RS485 protocols."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX491CSD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX491CSD when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-22T19:45:10.375Z","lastPublished":"2026-07-22T19:45:10.375Z","indexable":true}}