{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX1485EUB+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX1485EUB","canonicalUrl":"https://icboms.com/analog-devices/MAX1485EUB","factsUrl":"https://icboms.com/api/mcp/products/MAX1485EUB%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX1485EUB+ RS-422/RS-485 transceiver, full duplex, 250 kbps data rate, 4.75-5.25 V supply, 10-uMAX/uSOP package, -40°C to +85°C.","salesMarkdown":"Full-duplex operation with one driver and one receiver on-chip means a single MAX1485EUB+ handles both transmit and receive pairs for a point-to-point RS-422 link or a multi-drop RS-485 bus where the driver is always enabled on the transmit side. ## 250 kbps data rate and 70 mV hysteresis — the bus-margin trade-off The 250 kbps data rate is the maximum signaling speed across the RS-485 bus — at this rate the cable length is limited by the rise-time degradation, not the driver itself. For runs beyond 4000 feet, dropping to 115.2 kbps or lower keeps the eye open. The 70 mV receiver hysteresis provides 70 mV of noise margin on the differential bus — enough to reject common-mode noise from a nearby motor drive or switching supply without adding external filtering. A standard RS-485 receiver without hysteresis would chatter on a noisy idle bus. A panel that sees direct sunlight on a summer day stays below 85°C with passive ventilation.","metaTitle":"MAX1485EUB+ RS-422/RS-485 Transceiver, 250 kbps, Full Duplex","metaDescription":"MAX1485EUB+ RS-422/RS-485 transceiver, full duplex, 250 kbps data rate, 4.75-5.25 V supply. Active production, ROHS3 compliant. Quoted to order.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["DC-DC Power Modules"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"250kbps","Mounting Type":"Surface Mount","Package / Case":"10-TFSOP, 10-MSOP (0.118\\\", 3.00mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Receiver Hysteresis":"70 mV","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"10-uMAX/uSOP","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.62","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.62000","currency":"USD"},{"qty":10,"price":"$5.04800","currency":"USD"},{"qty":25,"price":"$4.77240","currency":"USD"},{"qty":100,"price":"$4.13600","currency":"USD"},{"qty":250,"price":"$3.92384","currency":"USD"},{"qty":500,"price":"$3.52086","currency":"USD"},{"qty":1000,"price":"$2.96940","currency":"USD"},{"qty":2500,"price":"$2.82093","currency":"USD"}]},"links":{"datasheetUrl":null,"sourceUrl":null},"ai":{"faq":[{"question":"What does the 70 mV receiver hysteresis mean on a noisy RS-485 bus?","answer":"The 70 mV hysteresis creates a dead band around the zero-crossing point of the differential signal — the receiver output does not toggle until the differential input exceeds +70 mV or falls below -70 mV. On a bus with 50 mV of common-mode noise from a nearby VFD, the receiver stays quiet instead of chattering at the PLC input."},{"question":"What supply voltage does MAX1485EUB+ need?","answer":"A regulated 5 V rail from a buck converter or linear regulator works; an unregulated 5 V wall adapter that drops below 4.75 V under load will push the transceiver out of the guaranteed operating window."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX1485EUB","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX1485EUB 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}}