{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"MAX3085ESA+","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"MAX3085ESA","canonicalUrl":"https://icboms.com/analog-devices/MAX3085ESA","factsUrl":"https://icboms.com/api/mcp/products/MAX3085ESA%2B","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices MAX3085ESA+ RS-485/RS-422 half-duplex transceiver, 1/1 driver/receiver, 500 kbps data rate, 4.75-5.25V supply, -40 to +85°C, 8-SOIC package, tube.","salesMarkdown":"## Half-duplex RS-485/422 transceiver at 500 kbps The MAX3085ESA+ from Analog Devices is a half-duplex transceiver supporting both RS-422 and RS-485 protocols, with a single driver and single receiver on board. The 500 kbps data rate is the nominal ceiling for this part — the actual throughput on a given bus depends on cable length, termination, and the number of nodes, but the driver's slew rate is limited to keep radiated emissions in check for this speed class. ## Supply range and receiver hysteresis The receiver hysteresis of 100 mV provides noise margin on the differential bus; this is the typical value, so the actual switching threshold at the A and B pins has a guaranteed dead band that prevents chatter on long or lightly-terminated cables. ## SOIC-8 footprint and board integration The supplier device package is 8-SOIC — the standard narrow-body footprint that matches the industry-wide SOIC-8 land pattern. The tube packaging is the factory-shipment format; the part is also available in tape-and-reel under a different order code for automated assembly.","metaTitle":"MAX3085ESA+ RS-485/422 Transceiver, Half-Duplex, 500 kbps","metaDescription":"MAX3085ESA+ Analog Devices RS-485/422 half-duplex transceiver, 500 kbps data rate, 4.75-5.25V supply, -40 to +85°C, SOIC-8. Active production, 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":"Half","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"500kbps","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":"100 mV","Operating Temperature":"-40°C ~ 85°C","Supplier Device Package":"8-SOIC","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$5.81","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$5.81000","currency":"USD"},{"qty":10,"price":"$5.21600","currency":"USD"},{"qty":25,"price":"$4.93120","currency":"USD"},{"qty":100,"price":"$4.27380","currency":"USD"},{"qty":250,"price":"$4.05464","currency":"USD"},{"qty":500,"price":"$3.63822","currency":"USD"},{"qty":1000,"price":"$3.06838","currency":"USD"},{"qty":2500,"price":"$2.91496","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/493eaa4c53390079677e6a34cf257bb6.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data rate of MAX3085ESA+?","answer":"The MAX3085ESA+ is rated for a data rate of 500 kbps. This is the nominal maximum for the driver under specified load conditions; actual bus throughput depends on cable length, termination, and the number of nodes on the RS-485 bus."},{"question":"Is MAX3085ESA+ a full duplex transceiver?","answer":"No, the MAX3085ESA+ is a half-duplex transceiver. It has one driver and one receiver, and the driver and receiver share the same differential bus pins (A and B). For full-duplex operation, you would need a part with separate driver and receiver bus pins, such as the MAX3082."},{"question":"What is the difference between MAX3085 and MAX3082?","answer":"The MAX3085 is a half-duplex transceiver with one driver and one receiver sharing the same bus pins. The MAX3082 is a full-duplex transceiver with separate driver output pins (Y, Z) and receiver input pins (A, B), allowing simultaneous transmit and receive on a four-wire bus. Both operate at 500 kbps and share the same 5 V supply range and SOIC-8 package."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/MAX3085ESA","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/MAX3085ESA 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}}