{"id":3556,"date":"2026-06-06T10:25:58","date_gmt":"2026-06-06T10:25:58","guid":{"rendered":"https:\/\/materialparts.com\/max3082esat\/"},"modified":"2026-06-06T10:25:58","modified_gmt":"2026-06-06T10:25:58","slug":"max3082esat","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/max3082esat\/","title":{"rendered":"MAX3082ESA+T"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The MAX3082ESA+T from Analog Devices (formerly Maxim) is a fail-safe, slew-rate-limited RS-485\/RS-422 half-duplex transceiver with 1 driver and 1 receiver. Supporting 115 kbps data rate with reduced EMI, its 1\/8 unit-load input impedance allows up to 256 transceivers on the bus. Fail-safe circuitry guarantees a logic-high receiver output when inputs are open or shorted. The ESA+T denotes the SOIC-8 industrial tape-and-reel version.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0646\u0648\u0639<\/td>\nRS-485\/RS-422 Transceiver<\/td>\n<\/tr>\n
Drivers \/ Receivers<\/td>\n1 \/ 1<\/td>\n<\/tr>\n
Duplex<\/td>\nHalf<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u0628\u064a\u0627\u0646\u0627\u062a<\/td>\n115 kbps (slew-rate limited)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n4.75V – 5.25V (5V nominal)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n375 uA (typical)<\/td>\n<\/tr>\n
Unit Load<\/td>\n1\/8 (up to 256 nodes)<\/td>\n<\/tr>\n
Fail-Safe<\/td>\nOpen and short-circuit (logic high)<\/td>\n<\/tr>\n
Receiver Hysteresis<\/td>\n100 mV<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 Narrow<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to 85 C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 1\/8 unit load allows 256 transceivers on a single bus<\/li>\n
  • Fail-safe receiver: logic-high output for open\/shorted inputs<\/li>\n
  • Slew-rate-limited driver for reduced EMI and reflections<\/li>\n
  • 115 kbps error-free data transmission<\/li>\n
  • 375 uA supply current (typical)<\/li>\n
  • Short-circuit current-limited driver with thermal shutdown<\/li>\n
  • Half-duplex operation with driver and receiver enables<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial control LANs with many nodes<\/li>\n
    • RS-485 multi-drop networks requiring high node count<\/li>\n
    • Building automation: BACnet and Modbus systems<\/li>\n
    • Level translators for RS-422\/RS-485 communication<\/li>\n
    • EMI-sensitive applications needing reduced slew rate<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX3082ESA+T from Analog Devices (formerly Maxim) is a fail-safe, slew-rate-limited RS-485\/RS-422 half-duplex transceiver with 1 driver and 1 receiver. Supporting 115 kbps data rate with reduced EMI, its 1\/8 unit-load input impedance allows up to 256 transceivers on the bus. Fail-safe circuitry guarantees a logic-high receiver output when inputs are open or […]<\/p>\n","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-3556","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-adi"],"acf":{"brief_explanation":"RS-485\/RS-422 half-duplex transceiver, 115kbps, 1\/8 UL (256 nodes), fail-safe, SOIC-8","date_code":"","package_case":"SOIC-8 Narrow (3.90 x 4.90 x 1.37 mm)","in_stock":11380,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/MAX3080-MAX3089.pdf","price":"$2.44 @ 1ku","product_introduction":"The MAX3082ESA+T from Analog Devices (formerly Maxim Integrated) is a fail-safe, slew-rate-limited RS-485\/RS-422 half-duplex transceiver with one driver and one receiver. Its 1\/8 unit-load receiver input impedance allows up to 256 transceivers on a single bus, doubling the node count compared to 1\/4 unit-load devices. The fail-safe circuitry guarantees a logic-high receiver output when the inputs are open or shorted, ensuring defined bus states in multi-drop networks. The slew-rate-limited driver minimizes EMI and reduces reflections from improperly terminated cables, enabling error-free data transmission up to 115 kbps.","working_principle":"The MAX3082ESA+T converts between TTL\/CMOS logic levels and RS-485\/RS-422 differential signal levels in half-duplex mode. The driver output stage is slew-rate limited to control the transition time, reducing high-frequency spectral content that causes EMI and reflections on long cables. The fail-safe receiver incorporates an internal bias network that pulls the differential inputs to a state that produces a logic-high output when the bus is open or shorted. The 1\/8 unit-load is achieved with 96 kOhm receiver input impedance (vs. 12 kOhm standard), allowing 256 transceivers on the bus while maintaining the standard 120 Ohm termination. Driver and receiver enables (DE and RE) control bus access for half-duplex operation.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>RO<\/td>Output<\/td>Receiver output<\/td><\/tr>
      2<\/td>RE<\/td>Input<\/td>Receiver enable (active low)<\/td><\/tr>
      3<\/td>DE<\/td>Input<\/td>Driver enable (active high)<\/td><\/tr>
      4<\/td>DI<\/td>Input<\/td>Driver data input<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td>Ground<\/td><\/tr>
      6<\/td>A<\/td>I\/O<\/td>Non-inverting bus I\/O<\/td><\/tr>
      7<\/td>B<\/td>I\/O<\/td>Inverting bus I\/O<\/td><\/tr>
      8<\/td>VCC<\/td>Power<\/td>Supply voltage (4.75-5.25V)<\/td><\/tr><\/table>","application_scenarios":"
      • Multi-drop RS-485: Up to 256 nodes on a single bus for large-scale networks<\/li>
      • Industrial LAN: Factory automation with Modbus RTU and BACnet MS\/TP<\/li>
      • Building automation: HVAC and security networks with fail-safe idle state<\/li>
      • Level translation: TTL\/CMOS to RS-485 for long-distance communication<\/li>
      • EMI-sensitive: Slew-rate limited for reduced emissions in crowded cabinets<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>SN65HVD75DR<\/td>SOIC-8<\/td>RS-485, 3.3-5V, 500kbps, 1\/8 UL<\/td><\/tr>
        ADI<\/td>MAX487ESA+T<\/td>SOIC-8<\/td>250kbps, 1\/4 UL, 128 nodes<\/td><\/tr>
        MaxLinear<\/td>SP3485EN-L\/TR<\/td>SOIC-8<\/td>3.3V, 10Mbps, 1\/4 UL<\/td><\/tr>
        TI<\/td>THVD1500DR<\/td>SOIC-8<\/td>500kbps, 3.3-5V, 1\/8 UL<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3556","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=3556"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3556\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3556"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3556"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3556"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3556"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}