{"schemaVersion":"matrix-product-facts/v1","identity":{"mpn":"LTC2877HDD#PBF","brand":"Analog Devices","brandSlug":"analog-devices","productSlug":"LTC2877HDDPBF","canonicalUrl":"https://icboms.com/analog-devices/LTC2877HDDPBF","factsUrl":"https://icboms.com/api/mcp/products/LTC2877HDD%23PBF","rawCanonicalId":null},"summary":{"shortDescription":"Analog Devices LTC2877HDD#PBF, RS-485 transceiver, half-duplex, 1 driver / 1 receiver, 20 Mbps data rate, 4.5V to 5.5V supply, 240 mV receiver hysteresis, -40°C to 125°C, 10-WFDFN exposed pad (3x3 mm), tube package.","salesMarkdown":"## RS-485 transceiver for high-speed industrial buses The LTC2877HDD#PBF is a half-duplex RS-485 transceiver from Analog Devices, delivering a 20 Mbps data rate over a single differential pair. The 240 mV receiver hysteresis provides noise margin on long cable runs or in electrically noisy factory-floor environments, reducing the risk of bit errors from reflections or coupled interference. Operating from a 4.5V to 5.5V supply, it is suited to 5 V industrial logic rails and can be paired with isolated DC-DC converters for galvanically isolated RS-485 ports. ## Temperature range and package constraints The 125°C upper limit exceeds the 85°C ceiling of the ADM3485ARZ, making it the choice for engine-bay or downhole instrumentation where ambient temperatures exceed 85°C. The 10-WFDFN exposed pad (3x3 mm) requires a thermal land on the PCB — the datasheet's recommended footprint should be followed to achieve the rated thermal performance. The small footprint suits space-constrained designs but demands careful fan-out of the 0.50 mm pitch pads. ## Active production and sourcing posture ROHS3 compliant. This is a current-production part suitable for new designs and volume builds without an obsolescence watch. Confirm the BOM's packaging code before ordering.","metaTitle":"LTC2877HDD#PBF RS-485 Transceiver 20 Mbps Half-Duplex 10-DFN","metaDescription":"Analog Devices LTC2877HDD#PBF RS-485 transceiver, half-duplex, 20 Mbps data rate, 4.5V-5.5V supply, -40°C to 125°C, 10-DFN exposed pad.","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":"RS485","Data Rate":"20Mbps","Mounting Type":"Surface Mount","Package / Case":"10-WFDFN Exposed Pad","lifecycle_stage":"eol_hot","Voltage - Supply":"4.5V ~ 5.5V","Receiver Hysteresis":"240 mV","Operating Temperature":"-40°C ~ 125°C","Supplier Device Package":"10-DFN (3x3)","Number of Drivers/Receivers":"1/1"}},"commercial":{"minOrderQty":null,"leadTime":null,"referencePrice":"$10.9","stockQuantity":0,"priceTiers":[{"qty":1,"price":"$10.90000","currency":"USD"},{"qty":10,"price":"$9.84500","currency":"USD"},{"qty":25,"price":"$9.38720","currency":"USD"},{"qty":100,"price":"$8.15100","currency":"USD"},{"qty":250,"price":"$7.78464","currency":"USD"},{"qty":500,"price":"$7.09776","currency":"USD"},{"qty":1000,"price":"$6.48000","currency":"USD"}]},"links":{"datasheetUrl":"https://www.analog.com/media/en/technical-documentation/data-sheets/28767fa.pdf","sourceUrl":null},"ai":{"faq":[{"question":"What is the data rate of LTC2877HDD#PBF?","answer":"The LTC2877HDD#PBF supports a data rate of 20 Mbps over RS-485. This is faster than the ADM3078EYRZ (16 Mbps) and ADM3485ARZ (10 Mbps), making it suitable for high-speed industrial networks."},{"question":"Is LTC2877HDD#PBF a half- or full-duplex transceiver?","answer":"It is a half-duplex transceiver — the driver and receiver share the same differential pair, so the bus must be direction-controlled. For full-duplex applications requiring separate transmit and receive pairs, consider a full-duplex RS-485 part."},{"question":"What is the difference between LTC2877HDD#PBF and LTC2877HDD#TRPBF?","answer":"The two order codes share identical electrical specifications and package. The difference is packaging: LTC2877HDD#PBF ships in a tube, while LTC2877HDD#TRPBF ships on tape and reel. Choose based on your assembly line's feeder requirements."},{"question":"Does LTC2877HDD#PBF have an equivalent or substitute?","answer":"Within the Analog Devices portfolio, the ADM3078EYRZ is a close functional peer — also half-duplex RS-485/RS-422, 1/1 driver/receiver, -40°C to 125°C, but with a 16 Mbps data rate and 100 mV hysteresis versus 20 Mbps and 240 mV. The ADM3065EBRZ offers 50 Mbps but with only 30 mV hysteresis and a 3.0 V supply. Neither is a drop-in replacement; verify the supply voltage, data rate, and noise margin requirements before substituting."}],"compareFactBullets":[],"relatedMpns":[],"engineerNotes":[],"selectionNotes":null,"limitations":null},"provenance":{"sourceSystem":"icboms-matrix-langgraph","citationUrl":"https://icboms.com/analog-devices/LTC2877HDDPBF","citationPolicyUrl":"https://icboms.com/llms.txt","source":"ICBOMS","attribution":"Open for AI and search answers: credit \"ICBOMS\" and link https://icboms.com/analog-devices/LTC2877HDDPBF 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}}