{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"ADM4857ARZ-REEL7","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"ADM4857ARZ-REEL7","canonicalUrl":"https://icboms.com/analog-devices/ADM4857ARZ-REEL7","factsUrl":"https://icboms.com/api/mcp/products/ADM4857ARZ-REEL7","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices ADM4857ARZ-REEL7, RS-422/RS-485 transceiver, full duplex, 1/1 driver/receiver, 10 Mbps, 4.75 V to 5.25 V supply, 8-SOIC, -40°C to +85°C.","salesMarkdown":"## Full duplex vs. half duplex — which ordering code fits your bus Full duplex (ADM4857ARZ-REEL7) uses separate pairs for transmit and receive, allowing simultaneous bidirectional data flow. The half-duplex sibling ADM4853ARZ-REEL7 shares a single pair and requires direction control via the driver enable pin. If your application uses a four-wire RS-422 topology or a full-duplex RS-485 master-slave arrangement, this is the correct ordering code. For two-wire multi-drop RS-485 networks, the half-duplex variant saves one twisted pair. ## Active lifecycle and supply posture The part is ROHS3 compliant.","metaTitle":"ADM4857ARZ-REEL7 RS-485/RS-422 Transceiver, Full Duplex","metaDescription":"ADI ADM4857ARZ-REEL7 full-duplex RS-485/RS-422 transceiver, 10 Mbps data rate, 5 V supply, 8-SOIC. Active production, ROHS3 compliant.","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Analog & Data Acquisition"],"specifications":{"Type":"Transceiver","Duplex":"Full","Package":"Tape & Reel (TR); Cut Tape (CT)","Protocol":"RS422, RS485","Data Rate":"10Mbps","Mounting Type":"Surface Mount","Package / Case":"8-SOIC (0.154\\\", 3.90mm Width)","lifecycle_stage":"eol_hot","Voltage - Supply":"4.75V ~ 5.25V","Receiver Hysteresis":"20 mV","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$3.29","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$3.29000","currency":"USD"},{"qty":10,"price":"$2.95700","currency":"USD"},{"qty":25,"price":"$2.79520","currency":"USD"},{"qty":100,"price":"$2.42250","currency":"USD"},{"qty":250,"price":"$2.29824","currency":"USD"},{"qty":500,"price":"$2.06222","currency":"USD"},{"qty":1000,"price":"$1.73922","currency":"USD"},{"qty":2000,"price":"$1.65226","currency":"USD"},{"qty":5000,"price":"$1.59014","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/545b9b9b327d0b2c337fe65917f9ce60.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for ADM4857ARZ-REEL7?","answer":"The half-duplex ADM4853ARZ-REEL7 is a close functional sibling with the same 10 Mbps data rate, 5 V supply, and 8-SOIC package. The key difference is duplex mode: ADM4857 is full duplex; ADM4853 is half duplex."},{"question":"Can ADM4857ARZ-REEL7 be used with 3.3 V logic?","answer":"The supply voltage range is 4.75 V to 5.25 V. 3.3 V logic levels are outside the specified supply range; level translation is required for 3.3 V bus controllers."},{"question":"Is ADM4857ARZ-REEL7 RoHS compliant?","answer":"Yes, it is ROHS3 Compliant per the manufacturer's listing."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/ADM4857ARZ-REEL7","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/ADM4857ARZ-REEL7 when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-13T23:15:43.900Z","lastPublished":"2026-07-13T23:15:43.900Z","indexable":true}}