{"id":2988,"date":"2026-05-29T01:31:57","date_gmt":"2026-05-29T01:31:57","guid":{"rendered":"https:\/\/materialparts.com\/tl084cdt\/"},"modified":"2026-05-29T01:31:57","modified_gmt":"2026-05-29T01:31:57","slug":"tl084cdt","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/tl084cdt\/","title":{"rendered":"TL084CDT"},"content":{"rendered":"

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

The TL084CDT from STMicroelectronics is a quad JFET-input operational amplifier in a 14-pin SOIC package. It features a 4 MHz gain bandwidth product, 16 V\/\u00b5s slew rate, and low input bias current of 200 pA. The device operates from dual supplies of \u00b13 V to \u00b118 V or single supply of 6 V to 36 V, making it suitable for a wide range of general-purpose amplification 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
\u0639\u062f\u062f \u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n4<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n4 MHz<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n16 V\/\u00b5s<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n10 mV (max)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n200 pA<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n6 V to 36 V (\u00b13 V to \u00b118 V)<\/td>\n<\/tr>\n
Supply Current<\/td>\n2.5 mA (total)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\n40 mA per channel<\/td>\n<\/tr>\n
CMRRR<\/td>\n86 dB<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0\u00b0C to 70\u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-14<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • High-impedance JFET input stage<\/li>\n
  • Low input bias and offset currents<\/li>\n
  • Wide common-mode voltage range (up to VCC+)<\/li>\n
  • Internal frequency compensation<\/li>\n
  • Output short-circuit protection<\/li>\n
  • Latch-up free operation<\/li>\n
  • High slew rate: 16 V\/\u00b5s typical<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Signal conditioning and filtering<\/li>\n
    • Audio preamplifiers and mixers<\/li>\n
    • Active filter circuits<\/li>\n
    • Instrumentation amplifiers<\/li>\n
    • Data acquisition systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The TL084CDT from STMicroelectronics is a quad JFET-input operational amplifier in a 14-pin SOIC package. It features a 4 MHz gain bandwidth product, 16 V\/\u00b5s slew rate, and low input bias current of 200 pA. The device operates from dual supplies of \u00b13 V to \u00b118 V or single supply of 6 V […]<\/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":[142],"class_list":["post-2988","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-st"],"acf":{"brief_explanation":"Quad JFET-input op amp, 4MHz GBP, 16V\/\u00b5s slew rate, 200pA bias current, SOIC-14","date_code":"","package_case":"SOIC-14 (8.75 x 4 x 1.65 mm)","in_stock":9834,"datasheet":"https:\/\/www.st.com\/resource\/en\/datasheet\/tl084a.pdf","price":"$0.271 @ 1ku","product_introduction":"The TL084CDT is a high-speed JFET-input quad operational amplifier from STMicroelectronics, fabricated using BiFET technology that combines matched high-voltage JFET and bipolar transistors on a single monolithic chip. Each of the four independent amplifiers features low input bias and offset currents, high input impedance, and a high slew rate of 16 V\/\u00b5s. The JFET input stage allows the common-mode voltage range to extend up to the positive supply rail, enabling use in single-supply applications. The device is internally frequency compensated for unity-gain stability and includes output short-circuit protection.","working_principle":"Each amplifier channel in the TL084CDT consists of a JFET differential input pair that provides high input impedance and low bias current. The input stage feeds a bipolar gain stage that achieves the 4 MHz gain-bandwidth product. Internal Miller compensation capacitors ensure unity-gain stability without external components. The output stage is a class AB push-pull configuration capable of sourcing or sinking 40 mA with built-in short-circuit current limiting. The four amplifiers share common supply rails but operate independently, allowing each channel to be configured for different functions such as inverting amplification, non-inverting buffering, or active filtering.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>OUT1<\/td>Output<\/td>Amplifier 1 output<\/td><\/tr>
      2<\/td>IN1-<\/td>Input<\/td>Amplifier 1 inverting input<\/td><\/tr>
      3<\/td>IN1+<\/td>Input<\/td>Amplifier 1 non-inverting input<\/td><\/tr>
      4<\/td>VCC+<\/td>Power<\/td>Positive supply voltage<\/td><\/tr>
      5<\/td>IN2+<\/td>Input<\/td>Amplifier 2 non-inverting input<\/td><\/tr>
      6<\/td>IN2-<\/td>Input<\/td>Amplifier 2 inverting input<\/td><\/tr>
      7<\/td>OUT2<\/td>Output<\/td>Amplifier 2 output<\/td><\/tr>
      8<\/td>OUT3<\/td>Output<\/td>Amplifier 3 output<\/td><\/tr>
      9<\/td>IN3-<\/td>Input<\/td>Amplifier 3 inverting input<\/td><\/tr>
      10<\/td>IN3+<\/td>Input<\/td>Amplifier 3 non-inverting input<\/td><\/tr>
      11<\/td>VCC-<\/td>Power<\/td>Negative supply voltage<\/td><\/tr>
      12<\/td>IN4+<\/td>Input<\/td>Amplifier 4 non-inverting input<\/td><\/tr>
      13<\/td>IN4-<\/td>Input<\/td>Amplifier 4 inverting input<\/td><\/tr>
      14<\/td>OUT4<\/td>Output<\/td>Amplifier 4 output<\/td><\/tr><\/table>","application_scenarios":"
      • Audio signal processing and active filters<\/li>
      • Industrial instrumentation and data acquisition<\/li>
      • Medical monitoring equipment<\/li>
      • Transducer signal conditioning<\/li>
      • Analog computation and waveform generation<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Texas Instruments<\/td>TL084CDR<\/td>SOIC-14<\/td>Pin-compatible equivalent<\/td><\/tr>
        STMicroelectronics<\/td>TL084CN<\/td>PDIP-14<\/td>Through-hole version<\/td><\/tr>
        onsemi<\/td>MC34074D<\/td>SOIC-14<\/td>Similar quad JFET op amp<\/td><\/tr>
        Texas Instruments<\/td>TL074CDR<\/td>SOIC-14<\/td>Lower noise JFET quad op amp<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2988","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=2988"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/2988\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=2988"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=2988"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=2988"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=2988"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}