{"id":6239,"date":"2026-06-12T10:03:19","date_gmt":"2026-06-12T10:03:19","guid":{"rendered":"https:\/\/materialparts.com\/lm224dr\/"},"modified":"2026-06-12T10:03:19","modified_gmt":"2026-06-12T10:03:19","slug":"lm224dr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/lm224dr\/","title":{"rendered":"LM224DR"},"content":{"rendered":"

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

The LM224DR from Texas Instruments is a quad general-purpose operational amplifier designed for industrial applications. It features four independent high-gain op-amps in a SOIC-14 package, operating from a single supply up to 32V with a gain bandwidth product of 1.2 MHz.<\/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>\n3V to 32V (single) or +\/-1.5V to +\/-16V (dual)<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n1.2 MHz<\/td>\n<\/tr>\n
\u538b\u6446\u7387<\/td>\n0.5 V\/us<\/td>\n<\/tr>\n
\u8f93\u5165\u5931\u8c03\u7535\u538b<\/td>\n2 mV (typ), 5 mV (max)<\/td>\n<\/tr>\n
\u8f93\u5165\u504f\u7f6e\u7535\u6d41<\/td>\n45 nA (typ)<\/td>\n<\/tr>\n
Supply Current (per amp)<\/td>\n350 uA (typ)<\/td>\n<\/tr>\n
CMRR<\/td>\n70 dB (min)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-25 to 85 C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-14<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Four independent op-amps in a single package<\/li>\n
  • ESD protection of 2 kV (HBM)<\/li>\n
  • Low input offset voltage of 2 mV typical<\/li>\n
  • Wide supply voltage range from 3V to 32V<\/li>\n
  • Short-circuit protected outputs<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Transducer amplifier circuits<\/li>\n
    • \u76f4\u6d41\u589e\u76ca\u5757\u548c\u6709\u6e90\u6ee4\u6ce2\u5668<\/li>\n
    • Industrial signal conditioning<\/li>\n
    • Buffer and follower circuits<\/li>\n
    • Analog computation and instrumentation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The LM224DR from Texas Instruments is a quad general-purpose operational amplifier designed for industrial applications. It features four independent high-gain op-amps in a SOIC-14 package, operating from a single supply up to 32V with a gain bandwidth product of 1.2 MHz. Key Specifications Number of Channels 4 Supply Voltage Range 3V to 32V […]<\/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-6239","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Quad 30V 1.2MHz general-purpose op-amp in SOIC-14, -25C to 85C industrial temp range","date_code":"","package_case":"SOIC-14 (8.65 x 3.91 x 1.75mm)","in_stock":12711,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/lm224.pdf","price":"$0.385 @ 1ku","product_introduction":"The LM224DR is a quad operational amplifier from Texas Instruments, consisting of four independent high-gain internally frequency compensated operational amplifiers. Designed to operate from a single power supply over a wide range of voltages (3V to 32V), it can also operate from split supplies. The device features low power consumption, making it suitable for battery-powered applications. Each amplifier has a typical gain bandwidth product of 1.2 MHz and a slew rate of 0.5 V\/us, providing adequate performance for most general-purpose signal conditioning applications.","working_principle":"The LM224DR integrates four independent op-amps, each employing a standard voltage-feedback architecture. **Input Stage**: A differential pair with PNP transistors provides the wide common-mode input range that includes ground (in single-supply operation). The input bias current is typically 45 nA flowing out of the input pins. **Gain Stage**: A high-gain voltage amplifier stage with internal compensation capacitor provides a gain-bandwidth product of 1.2 MHz and ensures unconditional stability with unity-gain feedback. **Output Stage**: A Class AB push-pull output stage can source and sink tens of milliamps, with short-circuit current limiting. The output swings to within approximately 1.5V of the negative rail under load. **Bias Network**: A shared bias network across all four amplifiers minimizes total quiescent current.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>OUT A<\/td>Channel A Output<\/td><\/tr>
      2<\/td>IN- A<\/td>Channel A Inverting Input<\/td><\/tr>
      3<\/td>IN+ A<\/td>Channel A Non-Inverting Input<\/td><\/tr>
      4<\/td>VCC<\/td>Positive Supply Voltage<\/td><\/tr>
      5<\/td>IN+ B<\/td>Channel B Non-Inverting Input<\/td><\/tr>
      6<\/td>IN- B<\/td>Channel B Inverting Input<\/td><\/tr>
      7<\/td>OUT B<\/td>Channel B Output<\/td><\/tr>
      8<\/td>OUT C<\/td>Channel C Output<\/td><\/tr>
      9<\/td>IN- C<\/td>Channel C Inverting Input<\/td><\/tr>
      10<\/td>IN+ C<\/td>Channel C Non-Inverting Input<\/td><\/tr>
      11<\/td>GND \/ VEE<\/td>Negative Supply \/ Ground<\/td><\/tr>
      12<\/td>IN+ D<\/td>Channel D Non-Inverting Input<\/td><\/tr>
      13<\/td>IN- D<\/td>Channel D Inverting Input<\/td><\/tr>
      14<\/td>OUT D<\/td>Channel D Output<\/td><\/tr><\/table>","application_scenarios":"
      • Signal Conditioning: Low-frequency transducer amplifiers for sensor interfaces in industrial control<\/li>
      • Active Filters: Multiple 2nd-order filter stages using a single IC for audio or instrumentation<\/li>
      • DC Gain Blocks: Instrumentation front-end amplifiers with single-supply operation down to 3V<\/li>
      • Comparators: Open-loop voltage comparison for threshold detection in monitoring circuits<\/li>
      • Oscillators: RC oscillators and waveform generators for timing and clock generation<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        LM324DR<\/td>TI<\/td>Extended temp range 0C to 70C<\/td><\/tr>
        LM2902DR<\/td>TI<\/td>Automotive grade, -40C to 125C<\/td><\/tr>
        MCP6004T-I\/SL<\/td>Microchip<\/td>RRIO, 1.8V-6V, lower power<\/td><\/tr>
        TLV274IPWR<\/td>TI<\/td>RRIO, 2.7V-16V, 3MHz GBW<\/td><\/tr>
        OPA4340UA<\/td>TI<\/td>RRIO, 2.5V-5.5V, 5.5MHz GBW<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6239","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=6239"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/6239\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=6239"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=6239"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=6239"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=6239"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}