{"id":7246,"date":"2026-06-23T07:55:47","date_gmt":"2026-06-23T07:55:47","guid":{"rendered":"https:\/\/materialparts.com\/opa4340ua\/"},"modified":"2026-06-23T07:55:47","modified_gmt":"2026-06-23T07:55:47","slug":"opa4340ua","status":"publish","type":"post","link":"https:\/\/materialparts.com\/es\/opa4340ua\/","title":{"rendered":"OPA4340UA"},"content":{"rendered":"

Productos<\/h2>\n

The OPA4340UA from Texas Instruments is a quad single-supply, rail-to-rail CMOS operational amplifier in a SOIC-14 package. With 5.5MHz bandwidth and 350uA supply current per amplifier, it provides precision signal conditioning for battery-powered and low-voltage systems.<\/p>\n

Especificaciones<\/h2>\n\n\n\n\n\n\n\n\n\n
Number of Amplifiers<\/td>\n4 (quad)<\/td>\n<\/tr>\n
Tensi\u00f3n de alimentaci\u00f3n<\/td>\n2.5 V to 5.5 V<\/td>\n<\/tr>\n
Bandwidth<\/td>\n5.5 MHz (GBW)<\/td>\n<\/tr>\n
Velocidad de giro<\/td>\n6 V\/us<\/td>\n<\/tr>\n
Supply Current<\/td>\n350 uA per amplifier (typical)<\/td>\n<\/tr>\n
Tensi\u00f3n de offset de entrada<\/td>\n+\/-3 mV (maximum)<\/td>\n<\/tr>\n
Corriente de polarizaci\u00f3n de entrada<\/td>\n10 pA (typical)<\/td>\n<\/tr>\n
Temperatura de funcionamiento<\/td>\n-40C to +85C<\/td>\n<\/tr>\n<\/table>\n

Caracter\u00edsticas<\/h2>\n
    \n
  • Quad rail-to-rail input\/output CMOS op-amp in SOIC-14 package<\/li>\n
  • 2.5V-5.5V single-supply operation for battery-powered systems<\/li>\n
  • 5.5MHz GBW with 6V\/us slew rate for moderate-speed signal processing<\/li>\n
  • 350uA per amplifier low supply current for extended battery life<\/li>\n
  • 10pA ultra-low input bias current for high-impedance sensor interfaces<\/li>\n
  • +\/-3mV maximum input offset for precision signal conditioning<\/li>\n<\/ul>\n

    Aplicaciones<\/h2>\n
      \n
    • Battery-powered instrument signal conditioning with quad channels<\/li>\n
    • Portable medical device sensor amplification<\/li>\n
    • Low-voltage active filter and buffer circuits<\/li>\n
    • Multi-channel data acquisition front-end amplification<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The OPA4340UA from Texas Instruments is a quad single-supply, rail-to-rail CMOS operational amplifier in a SOIC-14 package. With 5.5MHz bandwidth and 350uA supply current per amplifier, it provides precision signal conditioning for battery-powered and low-voltage systems. Key Specifications Number of Amplifiers 4 (quad) Supply Voltage 2.5 V to 5.5 V Bandwidth 5.5 MHz […]<\/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-7246","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad RRIO CMOS op-amp, 2.5-5.5V, 5.5MHz, 350uA\/ch, SOIC-14, 10pA Ib, low power","date_code":"","package_case":"SOIC-14 (8.65 x 3.90 x 1.37 mm, 1.27mm pitch)","in_stock":10159,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/opa340.pdf","price":"$2.50 @ 1ku","product_introduction":"The OPA4340UA from Texas Instruments is a quad single-supply, rail-to-rail CMOS operational amplifier in a SOIC-14 package. The device provides four independent op-amps, each featuring rail-to-rail input and output swing, enabling maximum dynamic range in low-voltage single-supply applications. The 2.5V to 5.5V supply range supports direct operation from lithium coin cells, single Li-Ion cells, and standard 3.3V or 5V logic supplies. The 5.5MHz gain-bandwidth product and 6V\/us slew rate provide adequate bandwidth for moderate-speed signal conditioning, active filters, and buffer applications. The 350uA typical supply current per amplifier (1.4mA total for the quad) enables extended battery operation in portable instruments. The 10pA typical input bias current makes the device ideal for high-impedance sensor interfaces (pH electrodes, photodiodes, piezoelectric sensors) where input bias current would otherwise cause errors. The +\/-3mV maximum input offset voltage is adequate for most signal conditioning applications, and the offset can be nulled in precision applications using the offset null pins. The quad configuration in SOIC-14 provides the most compact layout for multi-channel signal conditioning.","working_principle":"The OPA4340UA uses a CMOS rail-to-rail input\/output architecture. (1) Rail-to-Rail Input: The input stage uses complementary N-channel and P-channel differential pairs in parallel. The N-channel pair is active when the common-mode voltage is near the positive rail, and the P-channel pair is active near the negative rail. This allows the input to swing from the negative supply to the positive supply without phase reversal or gain change. (2) Rail-to-Rail Output: The output stage uses a common-source PMOS-NMOS push-pull configuration. The PMOS pulls the output to the positive rail, and the NMOS pulls it to the negative rail. The output can swing to within a few millivolts of each rail under light load. (3) CMOS Advantages: The CMOS input stage provides the ultra-low 10pA input bias current, eliminating the microampere bias currents of bipolar input op-amps. This is critical for high-impedance sensor interfaces. (4) Frequency Compensation: Internal dominant-pole compensation provides stable operation for unity-gain and higher closed-loop gains without external compensation components.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>1OUT<\/td>Output<\/td>Amplifier 1 output<\/td><\/tr>
      2<\/td>1IN-<\/td>Input<\/td>Amplifier 1 inverting input<\/td><\/tr>
      3<\/td>1IN+<\/td>Input<\/td>Amplifier 1 non-inverting input<\/td><\/tr>
      4<\/td>V+<\/td>Power<\/td>Positive supply (2.5-5.5V)<\/td><\/tr>
      5<\/td>2IN+<\/td>Input<\/td>Amplifier 2 non-inverting input<\/td><\/tr>
      6<\/td>2IN-<\/td>Input<\/td>Amplifier 2 inverting input<\/td><\/tr>
      7<\/td>2OUT<\/td>Output<\/td>Amplifier 2 output<\/td><\/tr>
      8<\/td>3OUT<\/td>Output<\/td>Amplifier 3 output<\/td><\/tr>
      9<\/td>3IN-<\/td>Input<\/td>Amplifier 3 inverting input<\/td><\/tr>
      10<\/td>3IN+<\/td>Input<\/td>Amplifier 3 non-inverting input<\/td><\/tr>
      11<\/td>V-<\/td>Power<\/td>Negative supply (GND for single supply)<\/td><\/tr>
      12<\/td>4IN+<\/td>Input<\/td>Amplifier 4 non-inverting input<\/td><\/tr>
      13<\/td>4IN-<\/td>Input<\/td>Amplifier 4 inverting input<\/td><\/tr>
      14<\/td>4OUT<\/td>Output<\/td>Amplifier 4 output<\/td><\/tr><\/table>","application_scenarios":"
      • Battery-powered instrument signal conditioning with quad channels at 350uA\/ch<\/li>
      • Portable medical device sensor amplification with 10pA input bias current<\/li>
      • Low-voltage active filter and buffer circuits with rail-to-rail I\/O<\/li>
      • Multi-channel data acquisition front-end amplification in SOIC-14<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>OPA4344UA<\/td>SOIC-14<\/td>1MHz, lower power version<\/td><\/tr>
        ADI<\/td>AD8609ARZ<\/td>SOIC-14<\/td>Quad, RRIO, 5MHz<\/td><\/tr>
        MCP<\/td>MCP6004-I\/SL<\/td>SOIC-14<\/td>1MHz, very low cost<\/td><\/tr>
        TI<\/td>OPA4340EA\/250<\/td>SSOP-16<\/td>Same, different package<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7246","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/comments?post=7246"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/posts\/7246\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/media?parent=7246"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/categories?post=7246"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/tags?post=7246"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/es\/wp-json\/wp\/v2\/chip_brand?post=7246"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}