{"id":3753,"date":"2026-06-08T03:11:09","date_gmt":"2026-06-08T03:11:09","guid":{"rendered":"https:\/\/materialparts.com\/adm4853arz-reel7\/"},"modified":"2026-06-08T03:11:09","modified_gmt":"2026-06-08T03:11:09","slug":"adm4853arz-reel7","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/adm4853arz-reel7\/","title":{"rendered":"ADM4853ARZ-REEL7"},"content":{"rendered":"

Productos<\/h2>\n

The ADM4853ARZ-REEL7 from Analog Devices is a 5V slew-rate limited half-duplex RS-485\/RS-422 transceiver supporting up to 10Mbps data rate, with true fail-safe receiver inputs, 1\/8 unit load (256 nodes), and thermal shutdown in an 8-lead SOIC package.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Interface<\/td>\nRS-485\/RS-422<\/td>\n<\/tr>\n
Duplex<\/td>\nHalf-Duplex<\/td>\n<\/tr>\n
Velocidad de datos<\/td>\n10 Mbps<\/td>\n<\/tr>\n
Drivers\/Receivers<\/td>\n1\/1<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n4.75V to 5.25V (5V nominal)<\/td>\n<\/tr>\n
Supply Current (Shutdown)<\/td>\n5 uA (max)<\/td>\n<\/tr>\n
Unit Load<\/td>\n1\/8 (up to 256 nodes per bus)<\/td>\n<\/tr>\n
Bus Common-Mode Range<\/td>\n-7V to +12V<\/td>\n<\/tr>\n
Differential Output Voltage<\/td>\n1.5V min (RS-485, R=27 ohm)<\/td>\n<\/tr>\n
Receiver Input Impedance<\/td>\n96 kOhm (1\/8 unit load)<\/td>\n<\/tr>\n
Fail-Safe<\/td>\nTrue fail-safe (open\/short = logic high)<\/td>\n<\/tr>\n
Slew Rate Limited<\/td>\nYes (reduced EMI)<\/td>\n<\/tr>\n
Thermal Shutdown<\/td>\nYes<\/td>\n<\/tr>\n
Short-Circuit Protection<\/td>\nYes<\/td>\n<\/tr>\n
Pin Compatible<\/td>\nMAX308x<\/td>\n<\/tr>\n
Paquete<\/td>\n8-Lead SOIC (Narrow)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
MSL<\/td>\nMSL 1 (Unlimited)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • EIA RS-485\/RS-422 compliant<\/li>\n
  • 10Mbps data rate (ADM4853 half-duplex \/ ADM4857 full-duplex)<\/li>\n
  • Reduced slew rate for low EMI emissions<\/li>\n
  • True fail-safe receiver inputs (open\/short = logic high)<\/li>\n
  • 5uA max shutdown current for battery-powered applications<\/li>\n
  • 1\/8 unit load allows 256 transceivers on one bus<\/li>\n
  • Thermal shutdown and short-circuit protection<\/li>\n
  • Pin-compatible with MAX308x series<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Low-power RS-485 networks<\/li>\n
    • EMI-sensitive industrial systems<\/li>\n
    • DTE-DCE interfaces<\/li>\n
    • Control industrial y automatizaci\u00f3n<\/li>\n
    • Packet switching and LAN<\/li>\n
    • Level translation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The ADM4853ARZ-REEL7 from Analog Devices is a 5V slew-rate limited half-duplex RS-485\/RS-422 transceiver supporting up to 10Mbps data rate, with true fail-safe receiver inputs, 1\/8 unit load (256 nodes), and thermal shutdown in an 8-lead SOIC package. Key Specifications Interface RS-485\/RS-422 Duplex Half-Duplex Data Rate 10 Mbps Drivers\/Receivers 1\/1 Supply Voltage 4.75V to […]<\/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-3753","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-adi"],"acf":{"brief_explanation":"5V RS-485 half-duplex transceiver, 10Mbps, 1\/8 unit load, fail-safe, SOIC-8","date_code":"","package_case":"8-Lead SOIC (4.9 x 3.9 x 1.75 mm, Narrow Body)","in_stock":6178,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/ADM4850-ADM4857.pdf","price":"$1.33 @ 1ku","product_introduction":"The ADM4853ARZ-REEL7 from Analog Devices is a 5V slew-rate limited half-duplex RS-485\/RS-422 transceiver from the ADM4850-ADM4857 family, supporting data rates up to 10Mbps. As a half-duplex device, the driver and receiver share the same differential bus lines (A and B), with separate enable inputs (DE for driver enable and RE for receiver enable) allowing flexible control of data flow direction. The 1\/8 unit load receiver input impedance (96kOhm) allows up to 256 transceivers to share a single RS-485 bus without exceeding the standard 32 unit-load limit, enabling larger network installations. The slew-rate limited driver outputs reduce electromagnetic interference (EMI) and minimize data errors caused by reflections from improperly terminated transmission lines, making the device well-suited for EMI-sensitive applications. The true fail-safe receiver feature ensures a logic high output when the receiver inputs are open or shorted, guaranteeing a known output state before and after communication. In shutdown mode, the supply current drops to 5uA maximum, making the ADM4853 suitable for battery-powered or low-power standby applications. Thermal shutdown and short-circuit protection prevent excessive power dissipation during fault conditions such as bus contention or output shorting. The device is pin-compatible with the MAX308x family, enabling easy drop-in replacement in existing designs. The ADM4853ARZ-REEL7 is supplied in an 8-lead narrow-body SOIC package on tape and reel.","working_principle":"The ADM4853ARZ-REEL7 operates as a differential RS-485\/RS-422 half-duplex transceiver. Key subsystems include: (1) Driver Section - when DE is high, the driver is enabled and converts the single-ended DI (driver input) signal into a differential output on the A and B bus lines; the driver output is slew-rate limited to reduce high-frequency EMI emissions and minimize reflections on improperly terminated buses; the differential output voltage is guaranteed to be at least 1.5V across a 27-ohm load (RS-485) or 2.0V across a 54-ohm load (RS-422); when DE is low, the driver outputs are three-stated (high impedance) to avoid loading the bus; (2) Receiver Section - when RE is low, the receiver is enabled and compares the differential voltage (VA - VB) against a threshold; if VA - VB > 200mV, the RO (receiver output) is logic high; if VA - VB < -200mV, RO is logic low; the true fail-safe feature ensures RO = high when inputs are open (no connection) or shorted (A = B), preventing undefined receiver states; when RE is high, the receiver output is three-stated; (3) Half-Duplex Operation - the driver and receiver share the same A\/B bus pins; for transmission, DE is driven high and RE can be high or low (receiver output ignored); for reception, DE is driven low (driver three-stated) and RE is driven low; direction control is typically managed by tying DE and RE together or using a GPIO pin; (4) 1\/8 Unit Load - the high receiver input impedance (96kOhm vs 12kOhm for a full unit load) reduces the loading on the bus, allowing 256 devices instead of the standard 32; (5) Protection - thermal shutdown disables the driver when junction temperature exceeds approximately 150C; short-circuit current is limited to approximately 200mA; the bus pins tolerate common-mode voltages from -7V to +12V.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>RO<\/td>Receiver output (logic-level, three-state when RE=high)<\/td><\/tr>
      2<\/td>RE<\/td>Receiver enable (active low; low=enabled, high=disabled)<\/td><\/tr>
      3<\/td>DE<\/td>Driver enable (active high; high=enabled, low=disabled)<\/td><\/tr>
      4<\/td>DI<\/td>Driver input (logic-level data to transmit)<\/td><\/tr>
      5<\/td>GND<\/td>Ground<\/td><\/tr>
      6<\/td>A<\/td>Non-inverting bus I\/O (driver output \/ receiver input)<\/td><\/tr>
      7<\/td>B<\/td>Inverting bus I\/O (driver output \/ receiver input)<\/td><\/tr>
      8<\/td>VCC<\/td>5V power supply (4.75V to 5.25V)<\/td><\/tr><\/table>","application_scenarios":"
      • Industrial Modbus network: 256 nodes on single twisted-pair bus at 10Mbps with fail-safe idle state<\/li>
      • Building automation BACnet: slew-rate limited driver reduces EMI in long cable runs (up to 1200m at lower data rates)<\/li>
      • Battery-powered data logger: 5uA shutdown current preserves battery during idle periods between readings<\/li>
      • DTE-DCE interface: half-duplex RS-485 link between PLC and remote I\/O module with direction auto-control<\/li>
      • Level translation: RS-485 bus extends UART communication between 3.3V\/5V systems over long distances<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ADI<\/td>ADM4853ARZ<\/td>SOIC-8<\/td>Tube version (not tape and reel)<\/td><\/tr>
        ADI<\/td>ADM4853ACPZ-REEL7<\/td>LFCSP-8<\/td>Smaller 3x3mm package with EP<\/td><\/tr>
        ADI<\/td>ADM4852ARZ<\/td>SOIC-8<\/td>2.5Mbps version, lower EMI<\/td><\/tr>
        Maxim\/ADI<\/td>MAX3083EESA+<\/td>SOIC-8<\/td>Pin-compatible, reduced slew rate<\/td><\/tr>
        TI<\/td>SN65HVD3082EDR<\/td>SOIC-8<\/td>200kbps, similar half-duplex RS-485<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3753","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=3753"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/3753\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=3753"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=3753"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=3753"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=3753"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}