{"id":7608,"date":"2026-06-26T06:52:31","date_gmt":"2026-06-26T06:52:31","guid":{"rendered":"https:\/\/materialparts.com\/lmc6482imx-nopb\/"},"modified":"2026-06-26T14:53:07","modified_gmt":"2026-06-26T14:53:07","slug":"lmc6482imx-nopb","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lmc6482imx-nopb\/","title":{"rendered":"LMC6482IMX\/NOPB"},"content":{"rendered":"

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

The LMC6482IMX\/NOPB from Texas Instruments is a CMOS dual rail-to-rail input and output operational amplifier with 1.5MHz bandwidth, 1.3V\/us slew rate, and ultra-low input current of 20fA in SOIC-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Amplifier Type<\/td>\nDual CMOS RRIO Op-Amp<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3V to 15.5V<\/td>\n<\/tr>\n
\u589e\u76ca-\u5e26\u5bbd\u4e58\u79ef<\/td>\n1.5 MHz<\/td>\n<\/tr>\n
\u538b\u6446\u7387<\/td>\n1.3 V\/us<\/td>\n<\/tr>\n
\u8f93\u5165\u504f\u7f6e\u7535\u6d41<\/td>\n20 fA typical<\/td>\n<\/tr>\n
\u8f93\u5165\u5931\u8c03\u7535\u538b<\/td>\n110 uV typical<\/td>\n<\/tr>\n
CMRR \/ PSRR<\/td>\n82 dB<\/td>\n<\/tr>\n
Supply Current<\/td>\n0.7mA per amplifier<\/td>\n<\/tr>\n
Output Swing<\/td>\nRail-to-rail (within 20mV)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to +85 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Rail-to-rail input common-mode range<\/li>\n
  • Rail-to-rail output swing within 20mV<\/li>\n
  • Ultra-low input bias current: 20fA<\/li>\n
  • 82dB CMRR and PSRR<\/li>\n
  • Specified for 3V, 5V, and 15V operation<\/li>\n
  • Improved replacement for TLC272\/TLC277<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Data acquisition and signal conditioning<\/li>\n
    • Precision instrumentation<\/li>\n
    • Photodiode and transimpedance amplifiers<\/li>\n
    • Battery-powered measurement systems<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LMC6482IMX\/NOPB from Texas Instruments is a CMOS dual rail-to-rail input and output operational amplifier with 1.5MHz bandwidth, 1.3V\/us slew rate, and ultra-low input current of 20fA in SOIC-8 package. Key Specifications Amplifier Type Dual CMOS RRIO Op-Amp Supply Voltage 3V to 15.5V Gain-Bandwidth Product 1.5 MHz Slew Rate 1.3 V\/us Input Bias […]<\/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":[138],"class_list":["post-7608","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Dual CMOS RRIO op-amp, 1.5MHz GBW, 20fA Ibias, SOIC-8, 3-15.5V","date_code":"","package_case":"SOIC-8 (4.9 x 3.9 x 1.58 mm)","in_stock":10935,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lmc6482.pdf","price":"$1.43 @ 1ku","product_introduction":"

      The LMC6482IMX\/NOPB from Texas Instruments is a dual CMOS operational amplifier featuring rail-to-rail input and output (RRIO) operation. The input common-mode range extends to both supply rails, enabling direct interfacing with signals at ground or V+ without phase inversion. The output swings within 20mV of either supply rail with a 100kOhm load, maximizing dynamic range in single-supply systems. The ultra-low input bias current of 20fA (0.02pA) makes the LMC6482 ideal for high-impedance sensor interfaces such as photodiode amplifiers, pH probes, and piezoelectric transducers. With a gain-bandwidth product of 1.5MHz, slew rate of 1.3V\/us, and CMRR\/PSRR of 82dB, the device provides excellent AC and DC precision. The LMC6482 is specified for operation from 3V to 15.5V over the -40C to +85C temperature range and is an improved replacement for TLC272 and TLC277.<\/p>","working_principle":"

      The LMC6482IMX\/NOPB operates through three main subsystems per amplifier channel: (1) Rail-to-rail input stage - A complementary input pair architecture uses both PMOS and NMOS differential pairs in parallel. When the common-mode voltage is near V-, the PMOS pair is active; when near V+, the NMOS pair takes over. This complementary arrangement ensures linear operation across the entire input common-mode range from V- to V+. The transition between pairs is managed by a smooth crossover circuit that minimizes offset voltage shifts. (2) Gain stage - A high-gain folded-cascode amplifier stage provides the voltage gain of approximately 130dB. Frequency compensation is internal, providing unconditional stability with unity-gain feedback. The 1.5MHz gain-bandwidth product and 1.3V\/us slew rate are achieved through careful bias current optimization. (3) Rail-to-rail output stage - A complementary common-source output stage (PMOS pull-up and NMOS pull-down) enables the output to swing within millivolts of either supply rail. The output can source and sink up to 20mA continuously, with short-circuit protection limiting current to approximately 16-30mA depending on supply voltage.<\/p>","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>OUT A<\/td>Output of amplifier A<\/td><\/tr>
      2<\/td>-IN A<\/td>Inverting input of amplifier A<\/td><\/tr>
      3<\/td>+IN A<\/td>Non-inverting input of amplifier A<\/td><\/tr>
      4<\/td>V-<\/td>Negative supply \/ ground<\/td><\/tr>
      5<\/td>+IN B<\/td>Non-inverting input of amplifier B<\/td><\/tr>
      6<\/td>-IN B<\/td>Inverting input of amplifier B<\/td><\/tr>
      7<\/td>OUT B<\/td>Output of amplifier B<\/td><\/tr>
      8<\/td>V+<\/td>Positive supply (3-15.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Data acquisition and signal conditioning with rail-to-rail I\/O maximizing ADC dynamic range in 3V single-supply systems<\/li>
      • Precision instrumentation using 20fA input bias current for photodiode, pH probe, and piezoelectric transducer interfaces<\/li>
      • Transimpedance amplifier circuits where femtoampere input current prevents error in high-impedance feedback networks<\/li>
      • Battery-powered measurement systems from 3V to 15.5V with 0.7mA per amplifier quiescent current<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        LMC6484IM\/NOPB<\/td>TI<\/td>Quad version, SOIC-14<\/td><\/tr>
        MCP6002-I\/SN<\/td>Microchip<\/td>1MHz GBW, lower cost<\/td><\/tr>
        OPA2314AIDR<\/td>TI<\/td>3MHz GBW, RRIO, precision<\/td><\/tr>
        TSV912IDT<\/td>ST<\/td>8MHz GBW, RRIO, low power<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7608","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=7608"}],"version-history":[{"count":2,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7608\/revisions"}],"predecessor-version":[{"id":7771,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7608\/revisions\/7771"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7608"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7608"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7608"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7608"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}