The ADM3483ARZ-REEL7 from Analog Devices is a 3.3V RS-485\/RS-422 transceiver with 250kbps data rate and half-duplex operation in SOIC-8 for industrial communication networks.<\/p>\n
| \u5305\u88c5<\/td>\n | SOIC-8<\/td>\n<\/tr>\n<\/table>\n\u7279\u70b9<\/h2>\n\u5e94\u7528<\/h2>\nProduct Overview The ADM3483ARZ-REEL7 from Analog Devices is a 3.3V RS-485\/RS-422 transceiver with 250kbps data rate and half-duplex operation in SOIC-8 for industrial communication networks. Key Specifications Package SOIC-8 Features See datasheet for complete specifications Industry-standard package Applications Industrial control Consumer electronics Communication equipment Automotive electronics<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[165],"class_list":["post-5571","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-adi"],"acf":{"brief_explanation":"3.3V RS-485 transceiver, 250kbps, half-duplex, SOIC-8","date_code":"","package_case":"SOIC-8","in_stock":2106,"datasheet":"https:\/\/www.analog.com\/en\/products\/adm3483.html","price":"$1.50 @ 1ku","product_introduction":"The ADM3483ARZ-REEL7 from Analog Devices is a 3.3V RS-485\/RS-422 transceiver with 250kbps data rate and half-duplex operation in SOIC-8 for industrial communication networks.","working_principle":"The ADM3483ARZ-REEL7 is a 3.3V RS-485\/RS-422 transceiver from Analog Devices in SOIC-8, supporting data rates up to 250kbps. It is the low-speed version of the ADM3485 (20Mbps), optimized for long-distance, noise-immune communication where speed is not critical. The half-duplex design shares the A and B pins between driver and receiver, controlled by DE and RE. The driver output differential voltage is 1.5V minimum into a 54-ohm load (standard RS-485), and the receiver input sensitivity is +\/-200mV. The receiver fail-safe ensures RO is HIGH when the bus is idle (open or terminated but not driven), preventing the UART from receiving false start bits. The receiver input impedance is 1\/4 unit load (96k-ohm), allowing up to 128 devices on the bus. The common-mode range is -7V to +12V, handling ground potential differences between nodes. The driver propagation delay is 200ns at 250kbps. The device provides +\/-4kV HBM ESD protection on the bus pins. The supply current is 1.2mA active and 10nA in shutdown (DE=LOW, RE=HIGH). The low-speed (250kbps) version provides slower edge rates (slew-rate limited) that reduce EMI and reflections on long, improperly terminated cables, making it suitable for cable lengths up to 4000 feet (1200m). The -ARZ-REEL7 suffix specifies SOIC-8, tape-and-reel (2500 pcs). Applications include: building automation (BACnet MS\/TP), industrial sensors, and long-cable RS-485 networks.","pin_description":"
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