{"id":5686,"date":"2026-06-11T04:12:26","date_gmt":"2026-06-11T04:12:26","guid":{"rendered":"https:\/\/materialparts.com\/ad5420arez-rl7\/"},"modified":"2026-06-12T03:06:35","modified_gmt":"2026-06-12T03:06:35","slug":"ad5420arez-rl7","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ad5420arez-rl7\/","title":{"rendered":"AD5420AREZ-RL7"},"content":{"rendered":"

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

The AD5420AREZ-RL7 from Analog Devices is a 16-bit loop-powered 4-20mA DAC with SPI interface, designed for industrial process control. Features integrated output fault detection and on-chip voltage reference in TSSOP-24.<\/p>\n

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Resolution<\/td>\n16-bit<\/td>\n<\/tr>\n
\u0627\u0644\u0645\u062e\u0631\u062c\u0627\u062a<\/td>\n4-20mA \/ 0-24mA<\/td>\n<\/tr>\n
\u0627\u0644\u0648\u0627\u062c\u0647\u0629<\/td>\nSPI<\/td>\n<\/tr>\n
Accuracy<\/td>\n+\/-0.01% FSR<\/td>\n<\/tr>\n
Supply<\/td>\n10.8-33V<\/td>\n<\/tr>\n
Temp<\/td>\n-40~105C<\/td>\n<\/tr>\n<\/table>\n

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    \n
  • 16-bit current output DAC<\/li>\n
  • 4-20mA loop-powered operation<\/li>\n
  • +\/-0.01% FSR accuracy<\/li>\n
  • Integrated fault detection<\/li>\n
  • SPI interface<\/li>\n
  • On-chip voltage reference<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Industrial process control<\/li>\n
    • 4-20mA current loop<\/li>\n
    • PLC analog output modules<\/li>\n
    • Valve positioners<\/li>\n
    • Field instrument transmitters<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AD5420AREZ-RL7 from Analog Devices is a 16-bit loop-powered 4-20mA DAC with SPI interface, designed for industrial process control. Features integrated output fault detection and on-chip voltage reference in TSSOP-24. Key Specifications Resolution 16-bit Output 4-20mA \/ 0-24mA Interface SPI Accuracy +\/-0.01% FSR Supply 10.8-33V Temp -40~105C Features 16-bit current output DAC 4-20mA […]<\/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":[19,13],"tags":[],"chip_brand":[165],"class_list":["post-5686","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"16-bit 1A loop-powered DAC, 4-20mA, SPI, TSSOP-24","date_code":"","package_case":"TSSOP-24 (7.8x4.4mm)","in_stock":14590,"datasheet":"https:\/\/www.analog.com\/en\/products\/ad5420.html","price":"$8.00 @ 1ku","product_introduction":"The AD5420AREZ-RL7 from Analog Devices is a 16-bit loop-powered 4-20mA DAC with SPI interface, designed for industrial process control. Features integrated output fault detection and on-chip voltage reference in TSSOP-24.","working_principle":"The AD5420AREZ-RL7 is a 16-bit loop-powered 4-20mA DAC from Analog Devices in TSSOP-24, designed for industrial 2-wire 4-20mA current loop transmitters. The loop-powered architecture means the device draws all operating power from the current loop itself (no separate power supply): the loop current varies from 4mA (zero-scale) to 20mA (full-scale), and the device operates from the loop voltage (typically 12-36V). The 16-bit DAC core converts the SPI-written digital code to a precision voltage, which drives an internal V-to-I converter. The output current is IOUT = 4mA + (CODE\/65536) x 16mA. The loop compensation pins (COMP1, COMP2) connect external capacitors (0.01uF + 0.1uF) that stabilize the feedback loop when driving long cable runs with high capacitance. The FAULT output indicates over-temperature, over-voltage, or open-loop conditions. The CLEAR pin asynchronously resets the output to 4mA (zero-scale) for safety shutdown. The LATCH pin allows synchronous update: data is shifted into the input register via SPI, then all DAC registers update simultaneously when LATCH transitions HIGH. The device achieves +\/-0.01% FSR integral nonlinearity (INL), corresponding to 1.6uA accuracy at 20mA full-scale. The HART-compatible output impedance enables FSK modem signals to be superimposed on the 4-20mA current loop for digital communication per HART protocol.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      2<\/td>SDI<\/td>Input<\/td>SPI data input (MOSI)<\/td><\/tr>
      3<\/td>SDO<\/td>Output<\/td>SPI data output (MISO, daisy-chain)<\/td><\/tr>
      4<\/td>FAULT<\/td>Output<\/td>Fault status output (open-drain, active low)<\/td><\/tr>
      5<\/td>CLEAR<\/td>Input<\/td>Asynchronous clear (sets output to zero-scale)<\/td><\/tr>
      6<\/td>LATCH<\/td>Input<\/td>DAC latch (transparent when LOW, latched when HIGH)<\/td><\/tr>
      7<\/td>SCLK<\/td>Input<\/td>SPI clock (up to 30MHz)<\/td><\/tr>
      8<\/td>SYNC<\/td>Input<\/td>SPI chip select (active low)<\/td><\/tr>
      9<\/td>COMP2<\/td>Analog<\/td>Loop compensation capacitor 2<\/td><\/tr>
      10<\/td>COMP1<\/td>Analog<\/td>Loop compensation capacitor 1<\/td><\/tr>
      11-16<\/td>Iout\/RCV\/GND\/AVDD\/DVDD<\/td>Analog\/Power<\/td>Current output, return, supplies<\/td><\/tr><\/table>","application_scenarios":"
    • Industrial process control<\/li>
    • 4-20mA current loop<\/li>
    • PLC analog output modules<\/li>
    • Valve positioners<\/li>
    • Field instrument transmitters<\/li>","alternative_models":"
      Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
      Analog Devices<\/td>AD5421AREZ-RL7<\/td>TSSOP-24<\/td>16-bit loop-powered HART modem DAC<\/td><\/tr>
      Analog Devices<\/td>AD5410AREZ-RL7<\/td>TSSOP-24<\/td>12-bit version, lower resolution<\/td><\/tr>
      Texas Instruments<\/td>DAC8750ICPWR<\/td>TSSOP-24<\/td>16-bit 4-20mA DAC, HART, SPI<\/td><\/tr>
      Maxim<\/td>MAX5216BGEE+T<\/td>QSOP-16<\/td>16-bit DAC, voltage output, SPI<\/td><\/tr>
      Analog Devices<\/td>AD5721RBRUZ-RL7<\/td>TSSOP-24<\/td>12-bit 4-20mA DAC with on-chip reference<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5686","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=5686"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5686\/revisions"}],"predecessor-version":[{"id":6038,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/5686\/revisions\/6038"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=5686"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=5686"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=5686"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=5686"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}