{"id":3382,"date":"2026-06-03T06:42:13","date_gmt":"2026-06-03T06:42:13","guid":{"rendered":"https:\/\/materialparts.com\/lf356n-nopb\/"},"modified":"2026-06-03T06:42:13","modified_gmt":"2026-06-03T06:42:13","slug":"lf356n-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/lf356n-nopb\/","title":{"rendered":"LF356N\/NOPB"},"content":{"rendered":"

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

The LF356N\/NOPB from Texas Instruments is a JFET-input operational amplifier in a PDIP-8 through-hole package. Featuring 5MHz bandwidth, 12V\/\u00b5s slew rate, and ultra-low 30pA input bias current, it is ideal for high-impedance signal conditioning, photodiode amplifiers, and precision integrators.<\/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
\u0639\u062f\u062f \u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n1<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n5 MHz<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n12 V\/\u00b5s<\/td>\n<\/tr>\n
\u0646\u0637\u0627\u0642 \u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n\u00b15V to \u00b118V<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n3 mV max (LF356B: 1mV)<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n30 pA typical<\/td>\n<\/tr>\n
Input Impedance<\/td>\n10^12 \u03a9<\/td>\n<\/tr>\n
Input Noise<\/td>\n15 nV\/\u221aHz @ 1kHz<\/td>\n<\/tr>\n
CMRRR<\/td>\n85 dB min<\/td>\n<\/tr>\n
Supply Current<\/td>\n5 mA typical<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n0 to 70\u00b0C<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nPDIP-8 (N suffix)<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • JFET input stage: 30pA input bias current<\/li>\n
  • 10^12\u03a9 ultra-high input impedance<\/li>\n
  • 5MHz bandwidth, 12V\/\u00b5s slew rate<\/li>\n
  • Internally compensated (unity-gain stable)<\/li>\n
  • Low input noise: 15nV\/\u221aHz<\/li>\n
  • Wide supply range: \u00b15V to \u00b118V<\/li>\n
  • Pin-compatible with LM741 (upgrade path)<\/li>\n
  • Output short-circuit protection<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Photodiode and photomultiplier amplifiers<\/li>\n
    • Piezoelectric transducer signal conditioning<\/li>\n
    • Precision integrators and sample-hold<\/li>\n
    • pH and ion-selective electrode amplifiers<\/li>\n
    • High-impedance buffer circuits<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LF356N\/NOPB from Texas Instruments is a JFET-input operational amplifier in a PDIP-8 through-hole package. Featuring 5MHz bandwidth, 12V\/\u00b5s slew rate, and ultra-low 30pA input bias current, it is ideal for high-impedance signal conditioning, photodiode amplifiers, and precision integrators. Key Specifications Number of Channels 1 Gain Bandwidth Product 5 MHz Slew Rate 12 […]<\/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":[138],"class_list":["post-3382","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"JFET-input op amp, 5MHz, 12V\/us, 30pA Ibias, PDIP-8, \u00b15-18V","date_code":"","package_case":"PDIP-8 \/ N-8 (9.81 x 6.35mm, 2.54mm pitch, through-hole)","in_stock":640,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lf356-n.pdf","price":"$1.35 @ 1ku","product_introduction":"The LF356N\/NOPB from TI is a JFET-input op amp in PDIP-8 with 5MHz GBW, 12V\/\u00b5s slew rate, and ultra-low 30pA input bias current. 10^12\u03a9 input impedance makes it ideal for high-impedance source amplification. \u00b15V to \u00b118V supply range. Internally compensated, pin-compatible with LM741. N suffix denotes PDIP-8, NOPB denotes lead-free. Classic JFET op amp for photodiode, piezo, and pH electrode signal conditioning.","working_principle":"The LF356 uses a JFET-input differential pair stage that provides the ultra-low 30pA input bias current and 10^12\u03a9 input impedance. The JFET input also eliminates the input-stage bias current noise that dominates in bipolar op amps at high source impedances. The internal frequency compensation capacitor provides unity-gain stability. The output stage uses a class-AB push-pull configuration with short-circuit current limiting. The 12V\/\u00b5s slew rate is determined by the ratio of the input stage tail current to the compensation capacitor. Unlike bipolar op amps, the JFET input exhibits essentially no input bias current variation with common-mode voltage.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>OFFSET NULL 1<\/td>Adjust<\/td>Offset trim terminal 1 (with 25k\u03a9 pot to V-)<\/td><\/tr>
      2<\/td>IN-<\/td>Input<\/td>Inverting input<\/td><\/tr>
      3<\/td>IN+<\/td>Input<\/td>Non-inverting input<\/td><\/tr>
      4<\/td>V-<\/td>Power<\/td>Negative supply<\/td><\/tr>
      5<\/td>OFFSET NULL 2<\/td>Adjust<\/td>Offset trim terminal 2<\/td><\/tr>
      6<\/td>OUT<\/td>Output<\/td>Output<\/td><\/tr>
      7<\/td>V+<\/td>Power<\/td>Positive supply<\/td><\/tr>
      8<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr><\/table>","application_scenarios":"
      • Photodiode transimpedance amplifier with 30pA bias current for dark current<\/li>
      • pH electrode buffer amplifier with 10^12\u03a9 input impedance<\/li>
      • Piezoelectric accelerometer charge amplifier<\/li>
      • Precision integrator for analog computing<\/li>
      • Sample-and-hold circuit with low droop rate<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>LF356DR<\/td>SOIC-8<\/td>SOIC SMD version<\/td><\/tr>
        TI<\/td>LF411CN\/NOPB<\/td>PDIP-8<\/td>Lower offset, improved JFET amp<\/td><\/tr>
        ADI<\/td>AD711JNZ<\/td>PDIP-8<\/td>Higher performance JFET alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3382","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=3382"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3382\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3382"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3382"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3382"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3382"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}