{"id":11423,"date":"2026-07-26T06:52:38","date_gmt":"2026-07-26T06:52:38","guid":{"rendered":"https:\/\/ic-vendor.com\/opa191idr\/"},"modified":"2026-07-26T06:52:38","modified_gmt":"2026-07-26T06:52:38","slug":"opa191idr","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/opa191idr\/","title":{"rendered":"OPA191IDR"},"content":{"rendered":"

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

The Texas Instruments OPA191IDR is a 36V e-trim precision CMOS operational amplifier. Rail-to-rail input\/output, +\/-5uV Vos, 140dB CMRR, 2.5MHz GBW in SOIC-8.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u7c7b\u578b<\/td>\nPrecision CMOS Op Amp<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n4.5V to 36V (+\/-2.25V to +\/-18V)<\/td>\n<\/tr>\n
\u6e20\u9053<\/td>\n1 (Single)<\/td>\n<\/tr>\n
Vos<\/td>\n+\/-5 uV typ (+\/-25 uV max)<\/td>\n<\/tr>\n
Vos Drift<\/td>\n+\/-0.1 uV\/C typ<\/td>\n<\/tr>\n
Ib<\/td>\n+\/-5 pA typ<\/td>\n<\/tr>\n
GBW<\/td>\n2.5 MHz<\/td>\n<\/tr>\n
\u538b\u6446\u7387<\/td>\n5.5 V\/us<\/td>\n<\/tr>\n
CMRR<\/td>\n140 dB typ<\/td>\n<\/tr>\n
Noise<\/td>\n15 nV\/sqrtHz @ 1kHz<\/td>\n<\/tr>\n
Iq<\/td>\n140 uA typ per channel<\/td>\n<\/tr>\n
Technology<\/td>\ne-trim CMOS, R-R I\/O<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +125C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nSOIC-8 (D) 4.90×3.90mm<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • 36V wide supply range<\/li>\n
  • +\/-5uV ultra-low offset voltage (e-trim)<\/li>\n
  • +\/-0.1uV\/C near-zero drift<\/li>\n
  • 140dB CMRR for precision<\/li>\n
  • 15nV\/sqrtHz low voltage noise<\/li>\n
  • +\/-5pA ultra-low input bias current<\/li>\n
  • Rail-to-rail input and output<\/li>\n
  • 2.5MHz GBW, 5.5V\/us slew rate<\/li>\n
  • 140uA low quiescent current<\/li>\n
  • 1nF high capacitive load drive<\/li>\n
  • EMI\/RFI hardened inputs<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Precision analog front-end<\/li>\n
    • Data acquisition (DAQ)<\/li>\n
    • Current sensing (low-side\/high-side)<\/li>\n
    • Pressure transmitter signal conditioning<\/li>\n
    • SMU \/ source-measure units<\/li>\n
    • Battery monitoring<\/li>\n
    • Train control analog modules<\/li>\n
    • Medical instrumentation<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Texas Instruments OPA191IDR is a 36V e-trim precision CMOS operational amplifier. Rail-to-rail input\/output, +\/-5uV Vos, 140dB CMRR, 2.5MHz GBW in SOIC-8. Key Specifications Type Precision CMOS Op Amp Supply Voltage 4.5V to 36V (+\/-2.25V to +\/-18V) Channels 1 (Single) Vos +\/-5 uV typ (+\/-25 uV max) Vos Drift +\/-0.1 uV\/C typ Ib […]<\/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":[2694],"chip_brand":[138],"class_list":["post-11423","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-opa191idr","chip_brand-ti"],"acf":{"brief_explanation":"36V e-trim CMOS op amp, +\/-5uV Vos, 140dB CMRR, SOIC-8","date_code":"","package_case":"SOIC-8 (4.90x3.90x1.50mm)","in_stock":7515,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/opa4191.pdf","price":"$1.13 @ 1ku","product_introduction":"The OPA191IDR from Texas Instruments is a 36V single-channel precision CMOS op amp using proprietary e-trim technology for +\/-5uV typical offset voltage. Rail-to-rail input\/output operation over the full 4.5V to 36V supply range. 140dB CMRR and +\/-0.1uV\/C drift enable precision DC measurement. 15nV\/sqrtHz noise and 2.5MHz GBW for accurate AC signal conditioning. EMI\/RFI hardened inputs prevent RF rectification in industrial environments. 1nF capacitive load drive without oscillation. SOIC-8 (D) package.","working_principle":"e-trim technology trims the input offset during final test at both room temperature and temperature extremes, reducing both initial offset and drift. The CMOS input stage provides near-zero bias current (5pA) for high-impedance sensors. Rail-to-rail input uses a complementary input pair (PMOS + NMOS) that transitions smoothly through the common-mode range. The output stage drives to within millivolts of both supply rails.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>NC<\/td>No connect<\/td><\/tr>
      2<\/td>IN-<\/td>Inverting input<\/td><\/tr>
      3<\/td>IN+<\/td>Non-inverting input<\/td><\/tr>
      4<\/td>VSS<\/td>Negative supply<\/td><\/tr>
      5<\/td>NC<\/td>No connect<\/td><\/tr>
      6<\/td>OUT<\/td>Output<\/td><\/tr>
      7<\/td>VDD<\/td>Positive supply<\/td><\/tr>
      8<\/td>NC<\/td>No connect<\/td><\/tr><\/table>","application_scenarios":"
      • Precision AFE<\/li>
      • DAQ systems<\/li>
      • Current sensing<\/li>
      • Pressure transmitter<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        OPA197<\/td>TI<\/td>Higher Vos, lower cost<\/td><\/tr>
        OPA192<\/td>TI<\/td>Chopper, zero-drift<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11423","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/comments?post=11423"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11423\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11423"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11423"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11423"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11423"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}