{"id":5445,"date":"2026-06-10T02:07:59","date_gmt":"2026-06-10T02:07:59","guid":{"rendered":"https:\/\/materialparts.com\/ad420arz-32-reel\/"},"modified":"2026-06-10T02:07:59","modified_gmt":"2026-06-10T02:07:59","slug":"ad420arz-32-reel","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/ad420arz-32-reel\/","title":{"rendered":"AD420ARZ-32-REEL"},"content":{"rendered":"

Productos<\/h2>\n

The AD420ARZ-32-REEL from Analog Devices is a serial-input 16-bit 4-20mA\/0-20mA current loop DAC in a 24-pin wide SOIC package. Using sigma-delta architecture with 0.012% INL, integrated 5V reference, and loop fault detection, it provides a complete single-chip solution for industrial process control current loop outputs.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Resolution<\/td>\n16-bit monotonic<\/td>\n<\/tr>\n
Output Range<\/td>\n4-20mA, 0-20mA, or 0-24mA (current)<\/td>\n<\/tr>\n
Voltage Output<\/td>\n0-5V, 0-10V, +\/-5V, +\/-10V (with ext amp)<\/td>\n<\/tr>\n
INL<\/td>\n+\/-0.012% max (FSR)<\/td>\n<\/tr>\n
Offset Error<\/td>\n+\/-0.05% max (adjustable)<\/td>\n<\/tr>\n
Total Output Error<\/td>\n+\/-0.15% max (adjustable)<\/td>\n<\/tr>\n
Settling Time<\/td>\n2.5 ms typical to 0.1% FS<\/td>\n<\/tr>\n
Interface<\/td>\n3-wire serial (3.3 Mbps)<\/td>\n<\/tr>\n
Reference<\/td>\nInternal +5V (25 ppm\/C max)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n12V to 32V<\/td>\n<\/tr>\n
Power Dissipation<\/td>\n176 mW typical<\/td>\n<\/tr>\n
Compliance Voltage<\/td>\n0V to VCC-2.5V<\/td>\n<\/tr>\n
Loop Fault Detect<\/td>\nYes (open-drain output)<\/td>\n<\/tr>\n
CLEAR Pin<\/td>\nAsynchronous output clear<\/td>\n<\/tr>\n
BOOST Pin<\/td>\nExternal transistor for power offload<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n
Paquete<\/td>\nSOIC-24 Wide (15.4 x 7.5 mm)<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • 16-bit monotonic sigma-delta DAC<\/li>\n
  • 4-20mA, 0-20mA, or 0-24mA current output<\/li>\n
  • 0-5V\/10V voltage output with external buffer<\/li>\n
  • +\/-0.012% INL (16-bit accuracy)<\/li>\n
  • Integrated +5V reference (25 ppm\/C)<\/li>\n
  • 3.3 Mbps serial interface with daisy chain<\/li>\n
  • Loop fault detection (open-circuit)<\/li>\n
  • Asynchronous CLEAR function<\/li>\n
  • BOOST pin for external transistor power offload<\/li>\n
  • Only 3 external capacitors required<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Industrial process control (4-20mA loops)<\/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 AD420ARZ-32-REEL from Analog Devices is a serial-input 16-bit 4-20mA\/0-20mA current loop DAC in a 24-pin wide SOIC package. Using sigma-delta architecture with 0.012% INL, integrated 5V reference, and loop fault detection, it provides a complete single-chip solution for industrial process control current loop outputs. Key Specifications Resolution 16-bit monotonic Output Range 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":[13,20],"tags":[],"chip_brand":[178],"class_list":["post-5445","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-analog-devices"],"acf":{"brief_explanation":"16-bit 4-20mA current loop DAC, sigma-delta, SOIC-24W, 12-32V","date_code":"","package_case":"SOIC-24 Wide (15.4 x 7.5 x 2.65 mm)","in_stock":3228,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/AD420.pdf","price":"$40.00 @ 10+","product_introduction":"The AD420ARZ-32-REEL from Analog Devices is a complete 16-bit digital-to-current-loop converter in a 24-pin wide SOIC package. The ARZ denotes SOIC-W package, 32 indicates 32V maximum supply voltage, and REEL indicates tape and reel packaging. Using a second-order sigma-delta architecture, the AD420 achieves 16-bit monotonicity with +\/-0.012% INL at very low cost. The programmable output ranges include 4-20mA, 0-20mA, and over-range 0-24mA for current, plus an uncommitted voltage output pin for 0-5V, 0-10V, +\/-5V, or +\/-10V with an external buffer amplifier. The internal +5V reference (25 ppm\/C max) can also supply external circuitry. The 3.3 Mbps 3-wire serial interface supports daisy-chaining multiple DACs across an isolation barrier. Loop fault detection signals when the output current loop is open. The BOOST pin allows an external transistor to offload power dissipation at high supply voltages and currents.","working_principle":"The AD420 operates through four subsystems: (1) Sigma-Delta DAC: A second-order sigma-delta modulator converts the 16-bit digital input to a 1-bit stream at a high oversampling ratio. This architecture inherently guarantees monotonicity, a critical requirement for industrial control loops. The 1-bit stream controls a switched current source that is filtered by two continuous-time RC sections using three external capacitors. (2) Current Output: The filtered current is amplified and mirrored to the supply rail, providing a 4-20mA, 0-20mA, or 0-24mA current source with respect to ground. The RANGE SELECT pins configure the output range. The output compliance voltage extends from 0V to VCC-2.5V. (3) Voltage Output: The VOUT pin provides an unbuffered voltage output from the sigma-delta filter. An external op-amp buffer can be configured for 0-5V, 0-10V, +\/-5V, or +\/-10V ranges using the internal reference. (4) Fault Detection: When the current loop is open or the compliance voltage is exceeded, the internal output amplifier saturates and the FAULT DETECT open-drain output goes low. This provides early warning before output accuracy degrades.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>
      1<\/td>VLL<\/td>Power<\/td>Logic supply (decouple with 0.1uF)<\/td><\/tr>
      2<\/tdRANGE SELECT 2<\/td>Input<\/td>Output range selection<\/td><\/tr>
      3<\/td>FAULT DETECT<\/td>Output<\/td>Open-drain fault output (active low)<\/td><\/tr>
      4<\/td>RANGE SELECT 1<\/td>Input<\/td>Output range selection<\/td><\/tr>
      5<\/td>CLEAR<\/td>Input<\/td>Asynchronous output clear<\/td><\/tr>
      6<\/td>LATCH<\/td>Input<\/td>Serial data latch (rising edge)<\/td><\/tr>
      7<\/td>CLOCK<\/td>Input<\/td>Serial clock input<\/td><\/tr>
      8<\/td>DATA IN<\/td>Input<\/td>Serial data input<\/td><\/tr>
      9<\/td>DATA OUT<\/td>Output<\/td>Serial data output (daisy chain)<\/td><\/tr>
      10<\/td>GND<\/td>Power<\/td>Ground<\/td><\/tr>
      14<\/td>REF OUT<\/td>Output<\/td>+5V reference output (25 ppm\/C)<\/td><\/tr>
      15<\/td>REF IN<\/td>Input<\/td>Reference input (internal or external)<\/td><\/tr>
      16<\/td>OFFSET TRIM<\/td>Input<\/td>Offset adjustment<\/td><\/tr>
      17<\/td>VOUT<\/td>Output<\/td>Voltage output (unbuffered)<\/td><\/tr>
      18<\/td>IOUT<\/td>Output<\/td>Current output (4-20mA loop)<\/td><\/tr>
      19<\/td>BOOST<\/td>Output<\/td>External transistor connection<\/td><\/tr>
      20-21<\/td>CAP1\/CAP2<\/td>Analog<\/td>External filter capacitors to VCC<\/td><\/tr>
      23<\/td>VCC<\/td>Power<\/td>Supply voltage (12-32V)<\/td><\/tr><\/table>","application_scenarios":"
      • PLC analog output module with 4-20mA current loop, +\/-0.012% INL, and daisy-chained SPI interface<\/li>
      • Pressure transmitter with 16-bit DAC, loop fault detection, and internal +5V reference for sensor excitation<\/li>
      • Valve positioner with 0-10V voltage output using external buffer and 12V supply<\/li>
      • Industrial control with 0-24mA over-range output, BOOST pin offloading power to external transistor at 32V<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Resolution<\/th>Output<\/th>Notes<\/th><\/tr>
        AD5420<\/td>ADI<\/td>16-bit<\/td>4-20mA<\/td>Newer, lower power<\/td><\/tr>
        AD5410<\/td>ADI<\/td>12-bit<\/td>4-20mA<\/td>Lower resolution<\/td><\/tr>
        DAC8760<\/td>TI<\/td>16-bit<\/td>4-20mA\/V<\/td>Voltage+current output<\/td><\/tr>
        XTR116<\/td>TI<\/td>Loop-powered<\/td>4-20mA<\/td>Loop-powered transmitter<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5445","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=5445"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/5445\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=5445"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=5445"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=5445"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=5445"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}