{"id":7834,"date":"2026-06-28T02:42:02","date_gmt":"2026-06-28T02:42:02","guid":{"rendered":"https:\/\/materialparts.com\/ad8226arz-2\/"},"modified":"2026-06-28T10:20:29","modified_gmt":"2026-06-28T10:20:29","slug":"ad8226arz-2","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ad8226arz-2\/","title":{"rendered":"AD8226ARZ"},"content":{"rendered":"

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

The AD8226ARZ is a wide supply range, rail-to-rail output instrumentation amplifier from Analog Devices with 0.15% max gain error, 1.2nA input bias current, and 1.7nV\/\u221aHz voltage noise in an SOIC-8 package.<\/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\n\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n1.7V to \u00b118V (single or dual)<\/td>\n<\/tr>\n
Gain Range<\/td>\n1 to 1000 (single resistor set)<\/td>\n<\/tr>\n
Gain Error (G=1)<\/td>\n0.02% typical<\/td>\n<\/tr>\n
Gain Error (G=100)<\/td>\n0.15% max<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n1.2nA typical<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n125\u00b5V typical<\/td>\n<\/tr>\n
Voltage Noise (1kHz)<\/td>\n1.7nV\/\u221aHz at G\u2265100<\/td>\n<\/tr>\n
Common-Mode Rejection<\/td>\n80dB at G=1, 120dB at G\u2265100<\/td>\n<\/tr>\n
Output Swing<\/td>\nRail-to-rail (within 10mV of rails)<\/td>\n<\/tr>\n
Bandwidth (G=1)<\/td>\n1.5 MHz<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n1V\/\u00b5s<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629 \u0625\u0644\u0649 +85 \u062f\u0631\u062c\u0629 \u0645\u0626\u0648\u064a\u0629<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Wide supply range: 1.7V to 36V (single supply) or \u00b118V (dual)<\/li>\n
  • Rail-to-rail output swing maximizes dynamic range<\/li>\n
  • Single resistor gain setting from 1 to 1000<\/li>\n
  • Low voltage noise: 1.7nV\/\u221aHz at G\u2265100<\/li>\n
  • Excellent CMRR: 120dB at G\u2265100<\/li>\n
  • Input protection to \u00b140V beyond supplies<\/li>\n
  • Overvoltage protected inputs without latch-up<\/li>\n
  • Compatible with AD620 pinout<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Medical instrumentation and ECG<\/li>\n
    • Industrial process control<\/li>\n
    • Bridge transducer amplifiers<\/li>\n
    • Data acquisition systems<\/li>\n
    • Battery-powered instruments<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AD8226ARZ is a wide supply range, rail-to-rail output instrumentation amplifier from Analog Devices with 0.15% max gain error, 1.2nA input bias current, and 1.7nV\/\u221aHz voltage noise in an SOIC-8 package. Key Specifications Supply Voltage Range 1.7V to \u00b118V (single or dual) Gain Range 1 to 1000 (single resistor set) Gain Error (G=1) […]<\/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":[19,13],"tags":[],"chip_brand":[165],"class_list":["post-7834","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"RRIO instrumentation amp, G=1-1000, 1.7nV\/\u221aHz, 1.7-36V, SOIC-8","date_code":"","package_case":"SOIC-8 (5.0 x 4.0 x 1.5mm)","in_stock":6340,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/AD8226.pdf","price":"$4.95 @ 1ku","product_introduction":"The AD8226ARZ is a versatile instrumentation amplifier from Analog Devices that combines wide supply range (1.7V to 36V), rail-to-rail output, and excellent precision in an SOIC-8 package. The gain is set by a single external resistor from 1 to 1000, with gain error as low as 0.02% at G=1 and 0.15% at G=100. The input stage provides 1.2nA input bias current and 125\u00b5V offset voltage, while the low 1.7nV\/\u221aHz voltage noise at gains of 100 or higher makes it ideal for precision measurement. CMRR reaches 120dB at gains \u2265100, and the input protection circuitry can withstand \u00b140V beyond the supply rails without damage or latch-up.","working_principle":"The AD8226 uses a classic three-op-amp instrumentation amplifier architecture optimized for low noise and wide supply range. The input stage consists of two matched differential amplifiers that buffer and pre-amplify the input signal. The gain-setting resistor connects between the RG pins, controlling the transconductance of the input pair. At G=1, the input stage has unity gain; as the gain resistor value decreases, the input stage gain increases proportionally, simultaneously improving CMRR and reducing referred input noise. The output stage is a difference amplifier that converts the differential signal to single-ended with rail-to-rail output capability. The input protection network uses current-limiting resistors and clamp diodes that protect the inputs to \u00b140V beyond the supplies without causing latch-up or affecting accuracy during normal operation. The rail-to-rail output stage uses a complementary push-pull architecture that drives the output to within 10mV of either supply rail under light loads.","pin_description":"\n
      Pin<\/th>Name<\/th>Type<\/th>Description<\/th><\/tr>\n
      1<\/td>-IN<\/td>Analog Input<\/td>Inverting input<\/td><\/tr>\n
      2<\/td>RG<\/td>Gain<\/td>Gain resistor terminal 1<\/td><\/tr>\n
      3<\/td>+V_S<\/td>Power<\/td>Positive supply<\/td><\/tr>\n
      4<\/td>VOUT<\/td>Output<\/td>Amplifier output<\/td><\/tr>\n
      5<\/td>REF<\/td>Reference<\/td>Reference voltage input (typically GND)<\/td><\/tr>\n
      6<\/td>-V_S<\/td>Power<\/td>Negative supply (or GND for single supply)<\/td><\/tr>\n
      7<\/td>RG<\/td>Gain<\/td>Gain resistor terminal 2<\/td><\/tr>\n
      8<\/td>+IN<\/td>Analog Input<\/td>Non-inverting input<\/td><\/tr>\n<\/table>","application_scenarios":"
        \n
      • Medical ECG:<\/strong> 120dB CMRR at G\u2265100 rejects 50\/60Hz common-mode interference; 1.7nV\/\u221aHz noise preserves signal integrity<\/li>\n
      • Bridge Sensors:<\/strong> Single resistor gain setting simplifies strain gauge and load cell interfacing from 1 to 1000<\/li>\n
      • Battery Instruments:<\/strong> 1.7V minimum supply voltage enables operation from single Li-ion or 2x AAA cells<\/li>\n
      • Industrial Process Control:<\/strong> \u00b140V input protection survives fault conditions in harsh 4-20mA loop environments<\/li>\n
      • Data Acquisition:<\/strong> Rail-to-rail output maximizes ADC dynamic range in single-supply systems<\/li>\n<\/ul>","alternative_models":"\n
        Model<\/th>Manufacturer<\/th>Key Difference<\/th>Package<\/th>Specs<\/th><\/tr>\n
        AD8227ARZ<\/td>ADI<\/td>Higher bandwidth (2.2MHz), lower noise<\/td>-<\/td>-<\/td><\/tr>\n
        AD620ARZ<\/td>ADI<\/td>Industry standard, \u00b12.3V to \u00b118V, non-RR output<\/td>-<\/td>-<\/td><\/tr>\n
        INA128UA<\/td>TI<\/td>1.3MHz, 10nV\/\u221aHz, SOIC-8<\/td>-<\/td>-<\/td><\/tr>\n
        INA821AIDR<\/td>TI<\/td>35nV\/\u221aHz, 80V input, higher voltage range<\/td>-<\/td>-<\/td><\/tr>\n
        MCP6N11-010E\/SN<\/td>Microchip<\/td>Zero-drift, 1.8V minimum, MSOP-8<\/td>-<\/td>-<\/td><\/tr>\n<\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7834","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=7834"}],"version-history":[{"count":1,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7834\/revisions"}],"predecessor-version":[{"id":8301,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7834\/revisions\/8301"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7834"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7834"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7834"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7834"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}