{"id":2992,"date":"2026-05-29T01:32:09","date_gmt":"2026-05-29T01:32:09","guid":{"rendered":"https:\/\/materialparts.com\/lm324amx-nopb\/"},"modified":"2026-05-29T01:32:09","modified_gmt":"2026-05-29T01:32:09","slug":"lm324amx-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lm324amx-nopb\/","title":{"rendered":"LM324AMX\/NOPB"},"content":{"rendered":"

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

The LM324AMX\/NOPB from Texas Instruments is a quad general-purpose operational amplifier in a 14-pin SOIC package. It operates from a single supply of 3 V to 32 V or dual supplies of \u00b11.5 V to \u00b116 V, with a unity-gain bandwidth of 1 MHz. The device features very low supply current drain (700 \u00b5A total), input common-mode voltage range that includes ground, and is specifically designed for single-supply applications.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n
\u901a\u9053\u6570<\/td>\n4<\/td>\n<\/tr>\n
Supply Voltage Range<\/td>\n3 V to 32 V (single), \u00b11.5 V to \u00b116 V (dual)<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n1 MHz<\/td>\n<\/tr>\n
\u538b\u6446\u7387<\/td>\n0.5 V\/\u00b5s<\/td>\n<\/tr>\n
\u8f93\u5165\u5931\u8c03\u7535\u538b<\/td>\n7 mV (max)<\/td>\n<\/tr>\n
\u8f93\u5165\u504f\u7f6e\u7535\u6d41<\/td>\n45 nA (typ)<\/td>\n<\/tr>\n
Supply Current<\/td>\n700 \u00b5A (total)<\/td>\n<\/tr>\n
DC Voltage Gain<\/td>\n100 dB<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n0\u00b0C to 70\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-14<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Internally frequency compensated for unity gain<\/li>\n
  • Large DC voltage gain: 100 dB<\/li>\n
  • Wide bandwidth: 1 MHz<\/li>\n
  • Very low supply current drain independent of voltage<\/li>\n
  • Low input bias current: 45 nA<\/li>\n
  • Input common-mode range includes ground<\/li>\n
  • Output voltage swing: 0 V to V+ – 1.5 V<\/li>\n
  • Compatible with all forms of logic<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Transducer amplifiers<\/li>\n
    • \u76f4\u6d41\u589e\u76ca\u5757<\/li>\n
    • Single-supply signal conditioning<\/li>\n
    • Active filters and oscillators<\/li>\n
    • Battery-powered instrumentation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM324AMX\/NOPB from Texas Instruments is a quad general-purpose operational amplifier in a 14-pin SOIC package. It operates from a single supply of 3 V to 32 V or dual supplies of \u00b11.5 V to \u00b116 V, with a unity-gain bandwidth of 1 MHz. The device features very low supply current drain (700 […]<\/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-2992","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad op amp, 3-32V single supply, 1MHz GBP, 700\u00b5A Iq, ground-sensing input, SOIC-14","date_code":"","package_case":"SOIC-14 (8.65 x 6 mm)","in_stock":4984,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm324-n.pdf","price":"$0.316 @ 1+","product_introduction":"The LM324AMX\/NOPB is a quad operational amplifier from the industry-standard LM324-N series by Texas Instruments. It consists of four independent high-gain internally frequency-compensated amplifiers designed to operate from a single power supply over a wide voltage range. A key differentiator is the input common-mode voltage range that includes ground, allowing the device to operate directly from 5 V logic supplies without requiring negative supplies. The very low supply current of 700 \u00b5A makes it ideal for battery-operated applications. The A suffix indicates tighter specifications for input offset voltage and offset current.","working_principle":"Each of the four amplifier channels in the LM324AMX\/NOPB uses a PNP differential input pair that allows the common-mode input range to extend to ground, enabling true single-supply operation. The input stage feeds a high-gain intermediate stage with internal compensation capacitors for unity-gain stability. The output stage is a class AB configuration that can swing to within 1.5 V of the positive rail and essentially to ground, providing maximum output dynamic range in single-supply configurations. All four amplifiers share common supply rails but operate independently. The 700 \u00b5A total quiescent current is essentially independent of supply voltage magnitude.","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>GND\/VEE<\/td>Power<\/td>Ground or negative supply<\/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":"
      • 5V logic system signal conditioning<\/li>
      • Battery-powered portable instrumentation<\/li>
      • Transducer bridge amplifiers<\/li>
      • Window comparators and voltage monitors<\/li>
      • Active RC filters and oscillators<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        STMicroelectronics<\/td>LM324ADT<\/td>SOIC-14<\/td>Pin-compatible equivalent<\/td><\/tr>
        onsemi<\/td>LM324DR2G<\/td>SOIC-14<\/td>Pin-compatible equivalent<\/td><\/tr>
        Texas Instruments<\/td>LM324B<\/td>SOIC-14<\/td>Next-gen, lower offset, wider temp<\/td><\/tr>
        Microchip<\/td>MCP6004-I\/SL<\/td>SOIC-14<\/td>Lower voltage, rail-to-rail alternative<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2992","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=2992"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2992\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2992"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2992"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2992"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2992"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}