{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC2856HDD-2#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC2856HDD-2PBF","canonicalUrl":"https://icboms.com/analog-devices/LTC2856HDD-2PBF","factsUrl":"https://icboms.com/api/mcp/products/LTC2856HDD-2%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC2856HDD-2#PBF, Half-duplex RS422/RS485 Transceiver, 1/1 Drivers/Receivers, 250 kbps, 4.5V ~ 5.5V supply, -40°C ~ 125°C, 8-WFDFN Exposed Pad (3x3 mm), Tube","salesMarkdown":"## What this RS485 transceiver brings to the bus The LTC2856HDD-2#PBF is a half-duplex RS422/RS485 transceiver from Analog Devices, rated for 250 kbps data rate over a single differential pair. The 8-DFN (3x3 mm) package with exposed pad helps pull heat out of the die when the transceiver is driving a heavily loaded bus at elevated temperature. The 25 mV receiver hysteresis provides enough noise margin on long cable runs to avoid false edge triggering from reflections or coupled noise — a common failure signature on boards where the RS485 line runs through a VFD cabinet. ## Active production, no end-of-life concern Supply is quoted to order per RFQ against your BOM quantity. No stock-holding claim is made here — confirm current availability and pricing at quote time through your sourcing desk. ## Package and mounting Standard lead-free reflow works. The DFN package is less forgiving than SOIC on tombstoning if the paste volume on the paddle is uneven. ## How it compares to the 3V ADM3072EYRZ The closest functional second-source in the Analog Devices portfolio is the ADM3072EYRZ: same half-duplex, same 250 kbps data rate, same -40°C to 125°C range, and 1/1 driver/receiver count. The key difference is supply voltage — the ADM3072 runs on 3.0V nominal, while the LTC2856HDD-2#PBF needs 4.5V to 5.5V. If your board already has a 5V rail, the LTC2856 is the direct fit; if you are on a 3.3V bus, the ADM3072 avoids a regulator. Receiver hysteresis also differs: 25 mV on the LTC2856 versus 100 mV on the ADM3072, so the ADM3072 offers more noise margin at the cost of slightly higher threshold uncertainty.","metaTitle":"LTC2856HDD-2#PBF Transceiver","metaDescription":"LTC2856HDD-2#PBF: Active production, ROHS3 compliant. Half-duplex RS422/RS485 transceiver, 250 kbps, 4.5-5.5V supply, -40°C to 125°C, 8-DFN (3x3 mm).","metaKeywords":null},"attributes":{"series":null,"packageCase":null,"mountingType":null,"rohsStatus":"ROHS3 Compliant","productStatus":"Active","categoryPath":["Sensors & Transducers"],"specifications":{"Type":"Transceiver","Duplex":"Half","Package":"Tube","Protocol":"RS422, RS485","Data Rate":"250kbps","Mounting Type":"Surface Mount","Package / Case":"8-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Receiver Hysteresis":"25 mV","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"8-DFN (3x3)","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$6.52","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$6.52000","currency":"USD"},{"qty":10,"price":"$5.85300","currency":"USD"},{"qty":25,"price":"$5.53320","currency":"USD"},{"qty":100,"price":"$4.79540","currency":"USD"},{"qty":250,"price":"$4.54952","currency":"USD"},{"qty":500,"price":"$4.08228","currency":"USD"},{"qty":1000,"price":"$3.48000","currency":"USD"}]},"links":{"datasheetUrl":"https://cdn.icboms.com/6257cad5f523b02af10d24243bf2ce1d.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the closest functional second-source for LTC2856HDD-2#PBF?","answer":"The main difference is the supply voltage — the ADM3072 runs on 3.0V, while the LTC2856 requires 4.5V to 5.5V."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC2856HDD-2PBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC2856HDD-2PBF when reusing this data. Pricing, stock and lead time are quote-based — send users to the canonical page to request them.","lastUpdated":"2026-07-17T19:50:00.618Z","lastPublished":"2026-07-17T19:50:00.618Z","indexable":true}}