{"id":3638,"date":"2026-06-06T12:18:05","date_gmt":"2026-06-06T12:18:05","guid":{"rendered":"https:\/\/materialparts.com\/ad812arz-reel7\/"},"modified":"2026-06-06T12:18:05","modified_gmt":"2026-06-06T12:18:05","slug":"ad812arz-reel7","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/ad812arz-reel7\/","title":{"rendered":"AD812ARZ-REEL7"},"content":{"rendered":"

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

The AD812ARZ-REEL7 from Analog Devices is a dual, current feedback, low power video amplifier optimized for driving cables in video systems. Each amplifier delivers 145MHz unity-gain bandwidth, 1600V\/us slew rate, and 50mA output current, with excellent video specifications of 0.02% differential gain error and 0.02 degree differential phase error. Packaged in an 8-lead SOIC, it operates from a single +3V supply up to dual \u00b115V supplies, making it ideal for portable and battery-powered video applications.<\/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
Amplifier Type<\/td>\nDual Current Feedback<\/td>\n<\/tr>\n
Unity-Gain Bandwidth<\/td>\n145MHz (3dB)<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n1600V\/us<\/td>\n<\/tr>\n
Supply Current per Amplifier<\/td>\n4.0mA max (VS=+5V)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n50mA per amplifier<\/td>\n<\/tr>\n
Differential Gain Error<\/td>\n0.02% (RL=150Ohm)<\/td>\n<\/tr>\n
Differential Phase Error<\/td>\n0.02 degree (RL=150Ohm)<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n+3V single to \u00b115V dual<\/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<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Two video amplifiers in one 8-lead SOIC package<\/li>\n
  • Gain flatness 0.1dB to 40MHz<\/li>\n
  • Operates on single +3V supply<\/li>\n
  • Output swing to within 1V of rails (150Ohm load)<\/li>\n
  • Current feedback architecture for bandwidth independent of gain<\/li>\n
  • Low power: 4mA per amplifier max at +5V<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Professional video cameras and switchers<\/li>\n
    • Video line drivers and cable drivers<\/li>\n
    • RGB video distribution amplifiers<\/li>\n
    • Portable and battery-powered video equipment<\/li>\n
    • HDSL and xDSL line drivers<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AD812ARZ-REEL7 from Analog Devices is a dual, current feedback, low power video amplifier optimized for driving cables in video systems. Each amplifier delivers 145MHz unity-gain bandwidth, 1600V\/us slew rate, and 50mA output current, with excellent video specifications of 0.02% differential gain error and 0.02 degree differential phase error. Packaged in an 8-lead […]<\/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-3638","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"Dual Current Feedback Video Amplifier, 145MHz, 1600V\/us, 50mA Out, SOIC-8","date_code":"","package_case":"8-Lead SOIC (3.9mm x 4.9mm)","in_stock":10374,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/AD812.pdf","price":"$4.90 @ 1ku","product_introduction":"The AD812ARZ-REEL7 from Analog Devices is a dual, current feedback, low power video amplifier in an 8-lead SOIC package. Each of the two amplifiers provides 145MHz unity-gain bandwidth and 1600V\/us slew rate with only 4mA maximum supply current per amplifier at +5V. The device is specifically optimized for driving one back-terminated video load (150Ohm) per amplifier, with outstanding 0.02% differential gain error and 0.02 degree differential phase error. It can operate from a single +3V supply up to dual \u00b115V supplies, making it versatile for both portable and professional video applications. The REEL7 suffix indicates 7-inch reel tape and reel packaging.","working_principle":"The AD812 uses a current feedback (CFB) amplifier architecture, where the bandwidth is primarily determined by the feedback resistor value rather than the closed-loop gain, unlike voltage feedback amplifiers. This allows the gain to be adjusted without sacrificing bandwidth. The non-inverting input is high impedance (voltage input), while the inverting input is low impedance (current input). The internal current conveyor converts the feedback current to a voltage at the compensation node, and the output stage drives the load. Each amplifier can deliver 50mA output current and swing to within 1V of either supply rail when driving a 150Ohm load.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>OUT1<\/td>Amplifier 1 output<\/td><\/tr>
      2<\/td>-IN1<\/td>Amplifier 1 inverting input<\/td><\/tr>
      3<\/td>+IN1<\/td>Amplifier 1 non-inverting input<\/td><\/tr>
      4<\/td>V-<\/td>Negative supply<\/td><\/tr>
      5<\/td>+IN2<\/td>Amplifier 2 non-inverting input<\/td><\/tr>
      6<\/td>-IN2<\/td>Amplifier 2 inverting input<\/td><\/tr>
      7<\/td>OUT2<\/td>Amplifier 2 output<\/td><\/tr>
      8<\/td>V+<\/td>Positive supply<\/td><\/tr><\/table>","application_scenarios":"
      • Professional video camera signal conditioning and cable driving<\/li>
      • Video switcher and special effects equipment RGB channels<\/li>
      • Portable video equipment operating from 3V to 5V battery<\/li>
      • Video distribution amplifiers for broadcast systems<\/li>
      • HDSL and xDSL line driver applications<\/li><\/ul>","alternative_models":"
        Model<\/th>Notes<\/th><\/tr>
        AD812ANZ<\/td>8-Lead PDIP package version<\/td><\/tr>
        AD8012ARZ<\/td>Dual 350MHz version, lower power 1.7mA\/amp<\/td><\/tr>
        AD811ARZ<\/td>Single 120MHz CFB op amp, higher current<\/td><\/tr>
        LMH6714<\/td>Texas Instruments dual CFB amplifier alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3638","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=3638"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3638\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3638"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3638"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3638"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3638"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}