{"id":7015,"date":"2026-06-23T02:04:42","date_gmt":"2026-06-23T02:04:42","guid":{"rendered":"https:\/\/materialparts.com\/max4477asa\/"},"modified":"2026-06-23T02:04:42","modified_gmt":"2026-06-23T02:04:42","slug":"max4477asa","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/max4477asa\/","title":{"rendered":"MAX4477ASA+"},"content":{"rendered":"

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

The MAX4477ASA+ from Analog Devices (Maxim Integrated) is a dual-channel, ultra-low-noise, low-distortion operational amplifier in an SOIC-8 package. It delivers 4.5nV\/sqrtHz input voltage noise, 10MHz gain-bandwidth product, and rail-to-rail output with 0.0002% THD+N at 1kHz, making it ideal for audio and precision instrumentation 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\n\n\n
\u0627\u0644\u062a\u0643\u0648\u064a\u0646<\/td>\nDual Channel<\/td>\n<\/tr>\n
Gain-Bandwidth Product (GBW)<\/td>\n10MHz<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n3V\/us<\/td>\n<\/tr>\n
Input Voltage Noise<\/td>\n4.5nV\/sqrtHz @ 1kHz<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n+\/-70uV (Max)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n+\/-200pA (Max)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.7V ~ 5.5V (Single Supply)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n2.2mA (Typical, dual)<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nRail-to-Rail Output<\/td>\n<\/tr>\n
THD+N<\/td>\n0.0002% @ 1kHz<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8 (4.90 x 3.90mm)<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40\u00b0C ~ +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • Ultra-low input voltage noise of 4.5nV\/sqrtHz for sensitive signal acquisition<\/li>\n
  • Extremely low distortion of 0.0002% THD+N for high-fidelity audio<\/li>\n
  • Rail-to-rail output swing maximizes dynamic range<\/li>\n
  • Low input offset voltage (+\/-70uV max) for precision applications<\/li>\n
  • Low input bias current (+\/-200pA max) for high-impedance sources<\/li>\n
  • Lead-free SOIC-8 package<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Professional and consumer audio preamplifiers<\/li>\n
    • Medical instrumentation front-ends<\/li>\n
    • Precision measurement and test equipment<\/li>\n
    • High-resolution ADC driver buffers<\/li>\n
    • Low-noise transducer amplifiers<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The MAX4477ASA+ from Analog Devices (Maxim Integrated) is a dual-channel, ultra-low-noise, low-distortion operational amplifier in an SOIC-8 package. It delivers 4.5nV\/sqrtHz input voltage noise, 10MHz gain-bandwidth product, and rail-to-rail output with 0.0002% THD+N at 1kHz, making it ideal for audio and precision instrumentation applications. Key Specifications Configuration Dual Channel Gain-Bandwidth Product (GBW) 10MHz […]<\/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-7015","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"Dual ultra-low-noise op-amp, 4.5nV\/sqrtHz, 10MHz GBW, rail-to-rail output, 0.0002% THD+N in SOIC-8","date_code":"","package_case":"SOIC-8 (4.90 x 3.90 mm)","in_stock":14590,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/MAX4474-MAX4479.pdf","price":"$2.45 @ 1ku","product_introduction":"The MAX4477ASA+ from Analog Devices is a dual-channel, ultra-low-noise, low-distortion operational amplifier optimized for audio and precision signal conditioning applications. With an input voltage noise density of only 4.5nV\/sqrtHz at 1kHz and total harmonic distortion plus noise (THD+N) of just 0.0002%, this device sets a benchmark for audio-quality amplification. The 10MHz gain-bandwidth product and 3V\/us slew rate provide ample bandwidth for audio and low-frequency instrumentation. Rail-to-rail output capability maximizes dynamic range in single-supply applications. The low input offset voltage of +\/-70uV maximum and low input bias current of +\/-200pA maximum ensure precision in DC-coupled circuits.","working_principle":"The MAX4477 employs a complementary bipolar input stage with laser-trimmed resistors to achieve ultra-low noise and distortion. The input stage uses large-geometry transistors operating at optimal bias currents to minimize 1\/f noise while maintaining low input bias current. The rail-to-rail output stage uses a common-emitter configuration that allows the output to swing to within millivolts of both supply rails. Internal frequency compensation ensures stability in unity-gain configurations. The dual-channel architecture provides matched amplifier characteristics for differential signal processing.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>OUT_A<\/td>Channel A output<\/td><\/tr>
      2<\/td>IN-_A<\/td>Channel A inverting input<\/td><\/tr>
      3<\/td>IN+_A<\/td>Channel A non-inverting input<\/td><\/tr>
      4<\/td>VSS<\/td>Negative supply \/ Ground<\/td><\/tr>
      5<\/td>IN+_B<\/td>Channel B non-inverting input<\/td><\/tr>
      6<\/td>IN-_B<\/td>Channel B inverting input<\/td><\/tr>
      7<\/td>OUT_B<\/td>Channel B output<\/td><\/tr>
      8<\/td>VDD<\/td>Positive supply (2.7V-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Professional Audio Preamplifier<\/b>: 4.5nV\/sqrtHz noise floor and 0.0002% THD+N preserve audio fidelity in microphone preamp stages<\/li>
      • Medical ECG\/EKG Front-End<\/b>: Ultra-low noise amplifies microvolt-level biopotential signals with low bias current<\/li>
      • 24-bit ADC Driver<\/b>: Rail-to-rail output maximizes ADC dynamic range; 10MHz GBW supports oversampled converters<\/li>
      • Precision Weigh Scale<\/b>: +\/-70uV max offset and low noise enable sub-milligram resolution in bridge transducer applications<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        OPA1652<\/td>TI<\/td>Dual, 4.5nV\/sqrtHz, 18MHz GBW, FET input<\/td><\/tr>
        LME49720<\/td>TI<\/td>Dual, 2.7nV\/sqrtHz, 55MHz GBW<\/td><\/tr>
        AD8656<\/td>ADI<\/td>Dual, 2.7nV\/sqrtHz, 28MHz GBW<\/td><\/tr>
        MAX4475<\/td>ADI<\/td>Single channel version of MAX4477<\/td><\/tr>
        NE5532<\/td>TI<\/td>Dual, 5nV\/sqrtHz, 10MHz, industry standard<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7015","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=7015"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/7015\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=7015"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=7015"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=7015"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=7015"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}