{"id":7801,"date":"2026-06-27T03:26:32","date_gmt":"2026-06-27T03:26:32","guid":{"rendered":"https:\/\/materialparts.com\/adm3483arz-2\/"},"modified":"2026-06-27T03:26:32","modified_gmt":"2026-06-27T03:26:32","slug":"adm3483arz-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/adm3483arz-2\/","title":{"rendered":"ADM3483ARZ"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The ADM3483ARZ is a 3.3V low-power RS-485\/RS-422 transceiver from Analog Devices with one driver and one receiver, \u00b115kV ESD protection, half-duplex operation, and 250 kbps data rate in an 8-pin SOIC package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u914d\u7f6e<\/td>\n1 Driver \/ 1 Receiver (Half-Duplex)<\/td>\n<\/tr>\n
Protocol<\/td>\nRS-485 \/ RS-422<\/td>\n<\/tr>\n
\u6570\u636e\u901f\u7387<\/td>\n250 kbps<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.3 V (single supply)<\/td>\n<\/tr>\n
ESD Protection<\/td>\n\u00b115 kV HBM on bus pins<\/td>\n<\/tr>\n
Driver Output Current<\/td>\n\u00b160 mA<\/td>\n<\/tr>\n
Receiver Input Impedance<\/td>\n96 k\u03a9 (1\/4 unit load)<\/td>\n<\/tr>\n
Common-Mode Range<\/td>\n-7 V to +12 V<\/td>\n<\/tr>\n
\u9759\u6001\u7535\u6d41<\/td>\n2.0 mA max<\/td>\n<\/tr>\n
\u5173\u673a\u7535\u6d41<\/td>\n1 nA typ<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8 (R)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 3.3V single supply operation<\/li>\n
  • \u00b115 kV ESD protection on bus pins<\/li>\n
  • 1\/4 unit load allows 128 devices on bus<\/li>\n
  • Half-duplex with driver\/receiver enable<\/li>\n
  • Low power: 2 mA quiescent, 1 nA shutdown<\/li>\n
  • Fail-safe receiver (open-circuit = logic high)<\/li>\n
  • Slew-rate limited for error-free 250 kbps transmission<\/li>\n
  • Current limiting and thermal shutdown on driver<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Industrial RS-485 networks<\/li>\n
    • Building automation (BACnet)<\/td>\n<\/tr>\n
    • Utility metering networks<\/li>\n
    • Level translators for RS-485 buses<\/li>\n
    • Half-duplex communication links<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ADM3483ARZ is a 3.3V low-power RS-485\/RS-422 transceiver from Analog Devices with one driver and one receiver, \u00b115kV ESD protection, half-duplex operation, and 250 kbps data rate in an 8-pin SOIC package. Key Specifications Configuration 1 Driver \/ 1 Receiver (Half-Duplex) Protocol RS-485 \/ RS-422 Data Rate 250 kbps Supply Voltage 3.3 V […]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[13,20],"tags":[],"chip_brand":[165],"class_list":["post-7801","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 half-duplex transceiver, 250kbps, \u00b115kV ESD, 1\/4 unit load, SOIC-8","date_code":"","package_case":"SOIC-8 (3.9 x 4.9 x 1.5 mm)","in_stock":3342,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ADM3483_3485_3488_3490_3491_3486.pdf","price":"$1.20 @ 1ku","product_introduction":"The ADM3483ARZ is a 3.3V low-power RS-485\/RS-422 transceiver from Analog Devices with one driver and one receiver configured for half-duplex communication. It features \u00b115 kV HBM ESD protection on bus pins, 1\/4 unit load receiver input impedance allowing up to 128 devices on a single bus, and fail-safe receiver design that outputs logic high when the bus is open or shorted. The driver is slew-rate limited for error-free data transmission up to 250 kbps. The device operates from a single 3.3V supply with only 2 mA quiescent current and 1 nA shutdown current. Current limiting and thermal shutdown protect the driver outputs against bus contention and short circuits.","working_principle":"The ADM3483ARZ uses differential signaling for robust communication over twisted-pair cables. The driver converts single-ended TTL\/CMOS logic levels to differential RS-485 signals (\u00b11.5V minimum differential output) with \u00b160 mA drive current. The receiver converts differential RS-485 signals (\u00b1200 mV threshold) back to single-ended logic levels. Slew-rate limiting on the driver output reduces EMI and reflections for clean signal integrity at 250 kbps. The 1\/4 unit load receiver impedance (96 k\u03a9) reduces bus loading, allowing 128 transceivers on one bus compared to 32 with standard unit loads. The fail-safe receiver biases the output high when the differential input is between -200 mV and +200 mV (open, shorted, or idle bus). Driver and receiver enable pins allow the device to be placed in a low-power state with the driver outputs three-stated.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>RO<\/td>Output<\/td>Receiver output<\/td><\/tr>\n
      2<\/td>RE<\/td>Input<\/td>Receiver output enable (active low)<\/td><\/tr>\n
      3<\/td>DE<\/td>Input<\/td>Driver output enable (active high)<\/td><\/tr>\n
      4<\/td>DI<\/td>Input<\/td>Driver data input<\/td><\/tr>\n
      5<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>\n
      6<\/td>A<\/td>I\/O<\/td>Non-inverting bus pin (driver out \/ receiver in)<\/td><\/tr>\n
      7<\/td>B<\/td>I\/O<\/td>Inverting bus pin (driver out \/ receiver in)<\/td><\/tr>\n
      8<\/td>VCC<\/td>Power<\/td>Supply voltage (3.3V)<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Industrial RS-485:<\/strong> 128-node bus capability with \u00b115kV ESD for factory floor communication networks<\/li>\n
      • Building Automation:<\/strong> BACnet MS\/TP communication over RS-485 at 250 kbps<\/li>\n
      • Utility Metering:<\/strong> 3.3V supply and 1\/4 unit load enable low-power multi-drop automatic meter reading<\/li>\n
      • Half-Duplex Links:<\/strong> DE\/RE enable pins support simple half-duplex communication with bus direction control<\/li>\n
      • Fail-Safe Systems:<\/strong> Open\/short-circuit fail-safe receiver prevents false data on disconnected buses<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>\n
        ADM3485ARZ<\/td>ADI<\/td>Same, 16 Mbps data rate<\/td><\/tr>\n
        SP3485EN-L\/TR<\/td>MaxLinear<\/td>3.3V, 10 Mbps, pin-compatible<\/td><\/tr>\n
        SN65HVD3082EDR<\/td>TI<\/td>3.3V, 200 kbps, 1\/8 unit load<\/td><\/tr>\n
        MAX3485ESA+<\/td>ADI<\/td>3.3V, 10 Mbps, SOIC-8<\/td><\/tr>\n
        ST3485EBDR<\/td>ST<\/td>3.3V, 250 kbps, SOIC-8<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7801","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=7801"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7801\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7801"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7801"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7801"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7801"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}