{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX491ESD+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX491ESD","canonicalUrl":"https://icboms.com/analog-devices/MAX491ESD","factsUrl":"https://icboms.com/api/mcp/products/MAX491ESD%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX491ESD+ RS422/RS485 full-duplex transceiver, 2.5Mbps data rate, 14-SOIC narrow-body package, single 5V supply, -40°C to 85°C.","salesMarkdown":"## RS422/RS485 bus transceiver for 5V industrial comms The MAX491ESD+ is a full-duplex transceiver supporting both RS422 and RS485 protocols at a data rate of 2.5Mbps, with a single driver and single receiver (1/1). The 70 mV receiver hysteresis provides noise margin on long twisted-pair cable runs — the hysteresis band filters out differential noise below that threshold without external filtering. ## 14-SOIC narrow-body — board-fit and reflow considerations Supplied in tube, typical pick-and-place feeders handle the SOIC-14 body without nozzle change — the 3.90 mm width clears most centering jaws. ## Active lifecycle and compliance status ROHS3 compliant, meeting the current EU exemption-free restriction level for lead, mercury, and phthalates — no special handling or documentation waiver needed for EU-market shipments.","metaTitle":"MAX491ESD+ RS422/RS485 Transceiver, 2.5Mbps, Full Duplex","metaDescription":"Analog Devices MAX491ESD+ RS422/RS485 full-duplex transceiver, 2.5Mbps data rate, 14-SOIC, -40°C to 85°C. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Discrete Semiconductors"],"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":"-40°C ~ 85°C","Supplier Device Package":"14-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.86","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.86000","currency":"USD"},{"qty":10,"price":"$5.26400","currency":"USD"},{"qty":25,"price":"$4.97680","currency":"USD"},{"qty":100,"price":"$4.31320","currency":"USD"},{"qty":250,"price":"$4.09200","currency":"USD"},{"qty":500,"price":"$3.67176","currency":"USD"},{"qty":1000,"price":"$3.09666","currency":"USD"},{"qty":2500,"price":"$2.94183","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/602428fed3abfc9496453e492ef2d17c.pdf","sourceUrl":null},"ai":{"faq":[],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX491ESD","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX491ESD 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}}