{"id":3746,"date":"2026-06-08T03:00:18","date_gmt":"2026-06-08T03:00:18","guid":{"rendered":"https:\/\/materialparts.com\/opa376aidbvr\/"},"modified":"2026-06-08T03:00:18","modified_gmt":"2026-06-08T03:00:18","slug":"opa376aidbvr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/opa376aidbvr\/","title":{"rendered":"OPA376AIDBVR"},"content":{"rendered":"

\u0646\u0638\u0631\u0629 \u0639\u0627\u0645\u0629 \u0639\u0644\u0649 \u0627\u0644\u0645\u0646\u062a\u062c<\/h2>\n

The OPA376AIDBVR from Texas Instruments is a precision low-noise CMOS operational amplifier with e-trim technology, featuring 5uV offset, 7.5nV\/rtHz noise, 5.5MHz bandwidth, and 760uA quiescent current in SOT-23-5.<\/p>\n

\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0631\u0626\u064a\u0633\u064a\u0629<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u0627\u0644\u0642\u0646\u0648\u0627\u062a<\/td>\n1<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n2.2V to 5.5V<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u0627\u0644\u062a\u0647\u062f\u0626\u0629<\/td>\n760uA (typ)<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n5uV (typ), 25uV (max)<\/td>\n<\/tr>\n
Offset Drift<\/td>\n0.26 uV\/C (typ)<\/td>\n<\/tr>\n
Gain Bandwidth<\/td>\n5.5 MHz<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n2 V\/us<\/td>\n<\/tr>\n
Input Noise (1kHz)<\/td>\n7.5 nV\/rtHz<\/td>\n<\/tr>\n
0.1-10Hz Noise<\/td>\n0.8 uVpp<\/td>\n<\/tr>\n
\u062a\u064a\u0627\u0631 \u062a\u062d\u064a\u0632 \u0627\u0644\u0625\u062f\u062e\u0627\u0644<\/td>\n0.2 pA (typ)<\/td>\n<\/tr>\n
CMRRR<\/td>\n90 dB (typ)<\/td>\n<\/tr>\n
PSRRR<\/td>\n106 dB (typ)<\/td>\n<\/tr>\n
Open-Loop Gain<\/td>\n134 dB<\/td>\n<\/tr>\n
\u0646\u0648\u0639 \u0627\u0644\u0625\u062e\u0631\u0627\u062c<\/td>\nRail-to-Rail<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOT-23-5<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40 to +125 C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • e-trim technology for outstanding DC precision<\/li>\n
  • 7.5 nV\/rtHz low noise at 1kHz<\/li>\n
  • 5uV typical offset voltage<\/li>\n
  • Rail-to-rail input and output<\/li>\n
  • Single-supply 2.2V to 5.5V operation<\/li>\n
  • Excellent PSRR for battery-direct operation<\/li>\n
  • EMI hardened inputs<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • ADC buffer amplifiers<\/li>\n
    • Medical instrumentation<\/li>\n
    • Sensor signal conditioning<\/li>\n
    • \u0627\u0644\u0645\u0631\u0634\u062d\u0627\u062a \u0627\u0644\u0646\u0634\u0637\u0629<\/li>\n
    • Audio equipment<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The OPA376AIDBVR from Texas Instruments is a precision low-noise CMOS operational amplifier with e-trim technology, featuring 5uV offset, 7.5nV\/rtHz noise, 5.5MHz bandwidth, and 760uA quiescent current in SOT-23-5. Key Specifications Channels 1 Supply Voltage 2.2V to 5.5V Quiescent Current 760uA (typ) Input Offset Voltage 5uV (typ), 25uV (max) Offset Drift 0.26 uV\/C (typ) […]<\/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-3746","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Precision low-noise op-amp, 5uV Vos, 7.5nV\/rtHz, 5.5MHz GBW, RRO, SOT-23-5, e-trim","date_code":"","package_case":"SOT-23-5 (2.9 x 1.6 x 1.3 mm)","in_stock":12314,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/sbos406g\/sbos406g.pdf","price":"$0.72 @ 1ku","product_introduction":"The OPA376AIDBVR from Texas Instruments is a precision low-noise CMOS operational amplifier utilizing proprietary e-trim technology to achieve outstanding DC precision and AC performance in a compact SOT-23-5 package. The e-trim process trims the offset voltage during final manufacturing, resulting in a typical offset of only 5uV and maximum of 25uV without the need for external trimming. With 7.5nV\/rtHz voltage noise density at 1kHz and 0.8uVpp noise in the 0.1-10Hz band, the OPA376 is suitable for precision signal conditioning where both low noise and low DC offset are critical. The rail-to-rail input and output stages maximize dynamic range in single-supply applications from 2.2V to 5.5V. A gain bandwidth product of 5.5MHz and slew rate of 2V\/us provide adequate speed for most precision applications including active filters and ADC driver circuits. The quiescent current of 760uA typical (950uA max) makes the OPA376 suitable for battery-powered instruments. The excellent PSRR of 106dB allows direct operation from unregulated battery supplies without significant performance degradation. The EMI-hardened input design reduces susceptibility to RF interference in noisy environments. The OPA376 is part of a family that includes the OPA2376 (dual) and OPA4376 (quad) versions.","working_principle":"The OPA376AIDBVR operates as a precision CMOS operational amplifier using e-trim technology. Key subsystems include: (1) e-trim Technology - a post-package trimming technique that adjusts the input offset voltage during final manufacturing test; this eliminates the need for external trimming components and ensures low offset over temperature and time; (2) CMOS Input Stage - the CMOS input pair provides ultra-low input bias current of 0.2pA typical, making the device ideal for high-impedance sensor interfaces; the rail-to-rail input common-mode range is achieved through a complementary input pair architecture (PMOS and NMOS pairs in parallel); (3) Rail-to-Rail Output Stage - a common-source output stage swings to within millivolts of both supply rails, maximizing output dynamic range in single-supply applications; output current capability of 50mA (typical) drives moderate loads directly; (4) Frequency Compensation - internal dominant-pole compensation provides stable operation for closed-loop gains of 1 or greater; the 5.5MHz GBW and 2V\/us slew rate support signal frequencies up to several hundred kHz; (5) EMI Filtering - on-chip EMI rejection filters at the input pins reduce susceptibility to conducted RF interference, preventing DC offset shifts caused by out-of-band signals; this is critical in environments with nearby RF transmitters or switching regulators.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>OUT<\/td>Amplifier output (rail-to-rail)<\/td><\/tr>
      2<\/td>V-<\/td>Negative supply \/ ground<\/td><\/tr>
      3<\/td>IN+<\/td>Non-inverting input (rail-to-rail)<\/td><\/tr>
      4<\/td>IN-<\/td>Inverting input<\/td><\/tr>
      5<\/td>V+<\/td>Positive supply (2.2V to 5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • ADC buffer: rail-to-rail output directly drives SAR ADC inputs with 5uV offset precision<\/li>
      • Medical ECG front-end: 0.2pA bias current prevents electrode polarization, 7.5nV noise preserves signal<\/li>
      • Strain gauge amplifier: 134dB open-loop gain ensures accurate gain setting, 0.26uV\/C drift stability<\/li>
      • Active filter: 5.5MHz GBW supports 2nd-order filters up to 100kHz corner frequency<\/li>
      • Battery instrument: 106dB PSRR allows direct battery supply without regulator<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>OPA2376AIDGKR<\/td>VSSOP-8<\/td>Dual version of OPA376<\/td><\/tr>
        TI<\/td>OPA4376AIRTER<\/td>TSSOP-14<\/td>Quad version of OPA376<\/td><\/tr>
        ADI<\/td>ADA4522-1ARMZ<\/td>MSOP-8<\/td>Zero-drift, 5.8nV noise<\/td><\/tr>
        TI<\/td>OPA333AIDBVR<\/td>SOT-23-5<\/td>Zero-drift, 1.8V min supply<\/td><\/tr>
        TI<\/td>OPA320AIDBVR<\/td>SOT-23-5<\/td>Lower noise (3.5nV), 20MHz GBW<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/comments?post=3746"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/3746\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=3746"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=3746"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=3746"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=3746"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}