{"id":7456,"date":"2026-06-24T07:01:00","date_gmt":"2026-06-24T07:01:00","guid":{"rendered":"https:\/\/materialparts.com\/ad704jnz\/"},"modified":"2026-06-24T07:01:00","modified_gmt":"2026-06-24T07:01:00","slug":"ad704jnz","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/ad704jnz\/","title":{"rendered":"AD704JNZ"},"content":{"rendered":"

\u4ea7\u54c1\u6982\u89c8<\/h2>\n

The AD704JNZ from Analog Devices is a dual precision, low-power bipolar operational amplifier with 25\u03bcA max supply current per amplifier and 400\u03bcV max offset voltage. Operating from \u00b115V supplies, it provides super-beta input transistors for low bias current in a PDIP-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
\u6e20\u9053<\/td>\n2 (dual)<\/td>\n<\/tr>\n
Supply Voltage Range<\/td>\n\u00b14V to \u00b118V<\/td>\n<\/tr>\n
Supply Current per Amp<\/td>\n25 \u03bcA (max)<\/td>\n<\/tr>\n
\u8f93\u5165\u5931\u8c03\u7535\u538b<\/td>\n400 \u03bcV (max)<\/td>\n<\/tr>\n
\u8f93\u5165\u504f\u7f6e\u7535\u6d41<\/td>\n1 nA (typical)<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n900 kHz<\/td>\n<\/tr>\n
\u538b\u6446\u7387<\/td>\n0.15 V\/\u03bcs<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nPDIP-8<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n0\u00b0C to +70\u00b0C (J grade)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Super-beta input transistors for low input bias current (1nA typical)<\/li>\n
  • Low supply current of 25\u03bcA per amplifier for battery-powered applications<\/li>\n
  • Precision offset voltage of 400\u03bcV maximum<\/li>\n
  • Low 1\/f noise corner frequency for DC and low-frequency applications<\/li>\n
  • Direct replacement for industry-standard dual op-amps (LM358, LT1013)<\/li>\n
  • No phase reversal on overdriven inputs<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Precision instrumentation and measurement amplifiers<\/li>\n
    • Battery-powered portable data acquisition systems<\/li>\n
    • Medical monitoring and biopotential amplifiers<\/li>\n
    • Low-frequency signal conditioning for sensors<\/li>\n
    • Active filters and integrators in precision analog circuits<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AD704JNZ from Analog Devices is a dual precision, low-power bipolar operational amplifier with 25\u03bcA max supply current per amplifier and 400\u03bcV max offset voltage. Operating from \u00b115V supplies, it provides super-beta input transistors for low bias current in a PDIP-8 package. Key Specifications Channels 2 (dual) Supply Voltage Range \u00b14V to \u00b118V […]<\/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-7456","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"Dual precision op-amp, 25\u03bcA\/amplifier, 400\u03bcV Vos, \u00b115V, PDIP-8","date_code":"","package_case":"PDIP-8 (6 x 9.4 mm)","in_stock":4532,"datasheet":"https:\/\/www.analog.com\/en\/products\/ad704.html","price":".50 @ 1ku","product_introduction":"The AD704JNZ from Analog Devices is a dual-precision, low-power operational amplifier using super-beta input transistors to achieve very low input bias current of 1nA typical while drawing only 25\u03bcA supply current per amplifier. The device operates from dual supplies of \u00b14V to \u00b118V and features a maximum input offset voltage of 400\u03bcV (J grade). The super-beta transistor input stage provides the low bias current of a BiFET amplifier without the speed limitations and input voltage noise of JFET designs. The AD704 is a functional upgrade for industry-standard dual op-amps such as the LM358 and LT1013, offering better DC precision and lower supply current in the same pinout.","working_principle":"The AD704 operates using a super-beta bipolar input stage. (1) The input differential pair uses super-beta NPN transistors with current gain (beta) of 1000-5000, compared to 100-500 for standard bipolar transistors. This dramatically reduces the input bias current to 1nA typical while maintaining the low offset voltage and low noise characteristics of bipolar technology. (2) The gain stage provides the high open-loop voltage gain needed for precision amplification, with the overall amplifier compensated for unity-gain stability by an internal 30pF capacitor. (3) The output stage can drive loads to within 2V of either supply rail, with short-circuit protection and no phase reversal when the inputs are overdriven beyond the common-mode range. The low 25\u03bcA supply current per amplifier makes it ideal for battery-powered applications.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>OUT A<\/td>Amplifier A output<\/td><\/tr>
      2<\/td>-IN A<\/td>Amplifier A inverting input<\/td><\/tr>
      3<\/td>+IN A<\/td>Amplifier A non-inverting input<\/td><\/tr>
      4<\/td>V-<\/td>Negative supply<\/td><\/tr>
      5<\/td>+IN B<\/td>Amplifier B non-inverting input<\/td><\/tr>
      6<\/td>-IN B<\/td>Amplifier B inverting input<\/td><\/tr>
      7<\/td>OUT B<\/td>Amplifier B output<\/td><\/tr>
      8<\/td>V+<\/td>Positive supply<\/td><\/tr><\/table>","application_scenarios":"
      • Precision sensor signal conditioning with low bias current and offset voltage<\/li>
      • Battery-powered portable data acquisition with 25\u03bcA per amplifier current draw<\/li>
      • Medical biopotential amplifiers requiring low input bias current<\/li>
      • Active low-pass filters and integrators in precision analog systems<\/li>
      • Replacement for LM358 in applications requiring better DC precision<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        AD704ANZ<\/td>Analog Devices<\/td>-40\u00b0C to +85\u00b0C industrial temp<\/td><\/tr>
        AD704BNZ<\/td>Analog Devices<\/td>Lower offset voltage (200\u03bcV)<\/td><\/tr>
        AD706JNZ<\/td>Analog Devices<\/td>Single channel version<\/td><\/tr>
        LT1013CN8<\/td>Analog Devices<\/td>Dual precision, higher speed<\/td><\/tr>
        OPA2188AIDR<\/td>TI<\/td>Zero-drift dual, SOIC-8<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7456","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/comments?post=7456"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7456\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7456"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7456"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7456"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7456"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}