{"id":6837,"date":"2026-06-21T12:49:19","date_gmt":"2026-06-21T12:49:19","guid":{"rendered":"https:\/\/materialparts.com\/op27gsz-reel7\/"},"modified":"2026-06-21T12:49:19","modified_gmt":"2026-06-21T12:49:19","slug":"op27gsz-reel7","status":"publish","type":"post","link":"https:\/\/materialparts.com\/ar\/op27gsz-reel7\/","title":{"rendered":"OP27GSZ-REEL7"},"content":{"rendered":"

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

The OP27GSZ-REEL7 from Analog Devices is a ultra-low noise precision operational amplifier with 3 nV\/sqrt(Hz) noise, +\/-10 uV offset, and 8 MHz bandwidth in an SOIC-8 package.<\/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
\u0627\u0644\u0646\u0648\u0639<\/td>\nUltra-Low Noise Precision Operational Amplifier<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0627\u0644\u0625\u0645\u062f\u0627\u062f<\/td>\n+\/-4 V to +\/-18 V<\/td>\n<\/tr>\n
Voltage Noise<\/td>\n3 nV\/sqrt(Hz) @ 1kHz<\/td>\n<\/tr>\n
\u062c\u0647\u062f \u0625\u0632\u0627\u062d\u0629 \u0627\u0644\u0645\u062f\u062e\u0644\u0627\u062a<\/td>\n+\/-10 uV (max, A grade)<\/td>\n<\/tr>\n
Offset Drift<\/td>\n0.2 uV\/C (max, A grade)<\/td>\n<\/tr>\n
Gain Bandwidth Product<\/td>\n8 MHz<\/td>\n<\/tr>\n
\u0645\u0639\u062f\u0644 \u0627\u0644\u062f\u0648\u0631\u0627\u0646<\/td>\n2.8 V\/us<\/td>\n<\/tr>\n
CMRRR<\/td>\n110 dB (min)<\/td>\n<\/tr>\n
Open-Loop Gain<\/td>\n120 dB (min)<\/td>\n<\/tr>\n
Supply Current<\/td>\n3.0 mA (typical)<\/td>\n<\/tr>\n
\u0627\u0644\u062d\u0632\u0645\u0629<\/td>\nSOIC-8<\/td>\n<\/tr>\n
\u062f\u0631\u062c\u0629 \u062d\u0631\u0627\u0631\u0629 \u0627\u0644\u062a\u0634\u063a\u064a\u0644<\/td>\n-40C to +85C<\/td>\n<\/tr>\n<\/table>\n

\u0627\u0644\u0645\u064a\u0632\u0627\u062a<\/h2>\n
    \n
  • 3 nV\/sqrt(Hz) voltage noise – industry-leading for bipolar op amps<\/li>\n
  • +\/-10 uV max offset voltage (A grade)<\/li>\n
  • 0.2 uV\/C max offset drift<\/li>\n
  • 110 dB minimum CMRR<\/li>\n
  • 120 dB minimum open-loop gain<\/li>\n
  • Compensated for gains >= 5 (OP27)<\/li>\n
  • Drop-in upgrade for OP07<\/li>\n<\/ul>\n

    \u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a<\/h2>\n
      \n
    • Professional audio microphone preamplifiers<\/li>\n
    • Precision instrumentation amplifiers<\/li>\n
    • Low-noise data acquisition front-ends<\/li>\n
    • High-resolution ADC input buffers<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The OP27GSZ-REEL7 from Analog Devices is a ultra-low noise precision operational amplifier with 3 nV\/sqrt(Hz) noise, +\/-10 uV offset, and 8 MHz bandwidth in an SOIC-8 package. Key Specifications Type Ultra-Low Noise Precision Operational Amplifier Supply Voltage +\/-4 V to +\/-18 V Voltage Noise 3 nV\/sqrt(Hz) @ 1kHz Input Offset Voltage +\/-10 uV […]<\/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":[165],"class_list":["post-6837","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"Ultra-Low Noise Op Amp, 3nV\/sqrtHz, +\/-10uV Vos, 8MHz, SOIC-8","date_code":"","package_case":"SOIC-8 (5.0 x 3.9 x 1.5 mm)","in_stock":3456,"datasheet":"https:\/\/www.analog.com\/media\/en\/technical-documentation\/data-sheets\/OP27.pdf","price":"$3.80 @ 1ku","product_introduction":"The OP27GSZ-REEL7 from Analog Devices is an ultra-low noise precision operational amplifier that has been an industry benchmark for low-noise signal processing since its introduction. The 3 nV\/sqrt(Hz) voltage noise at 1 kHz remains competitive for bipolar input op amps, making it a standard choice for professional audio and precision instrumentation. The +\/-10 uV max offset voltage (A grade) with 0.2 uV\/C max drift ensures DC precision. The 110 dB minimum CMRR and 120 dB minimum open-loop gain enable accurate signal processing in demanding differential circuits. The OP27 is de-compensated for gains >= 5; for unity-gain applications, use the OP37. The device is a drop-in upgrade for the classic OP07 with improved noise and speed performance.","working_principle":"The OP27GSZ-REEL7 uses a super-beta bipolar input stage where the input transistors have approximately 5x the current gain of standard NPN transistors. This reduces the base current (and therefore input bias current) while maintaining the low voltage noise that only bipolar transistors can achieve. The 3 nV\/sqrt(Hz) noise is achieved by operating the input pair at a relatively high collector current (approximately 500 uA per side), which increases the transconductance (gm) and reduces the equivalent input noise voltage. The input offset voltage is laser-trimmed at wafer level by selectively shorting segments of a collector resistor string to null the offset. The de-compensated architecture uses a smaller internal compensation capacitor than a unity-gain-stable design, providing the 8 MHz GBW and 2.8 V\/us slew rate at the cost of requiring a minimum gain of 5 for stability. The output stage uses class AB push-pull with current limiting and thermal protection.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>OFFSET NULL1<\/td>Input<\/td>Offset trim<\/td><\/tr>
      2<\/td>IN-<\/td>Input<\/td>Inverting input<\/td><\/tr>
      3<\/td>IN+<\/td>Input<\/td>Non-inverting input<\/td><\/tr>
      4<\/td>VS-<\/td>Power<\/td>Negative supply<\/td><\/tr>
      5<\/td>OFFSET NULL2<\/td>Input<\/td>Offset trim<\/td><\/tr>
      6<\/td>OUTPUT<\/td>Output<\/td>Amplifier output<\/td><\/tr>
      7<\/td>VS+<\/td>Power<\/td>Positive supply<\/td><\/tr>
      8<\/td>NC<\/td>-<\/td>No connect<\/td><\/tr><\/table>","application_scenarios":"
      • Professional condenser microphone preamp with 3nV noise floor<\/li>
      • 16-bit ADC driver with gain >= 5 for strain gauge bridge<\/li>
      • Precision instrumentation amplifier with 120dB open-loop gain<\/li>
      • Low-noise RIAA phono preamplifier for vinyl record playback<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        ADI<\/td>OP37GSZ-REEL7<\/td>SOIC-8<\/td>Unity-gain stable version (63 MHz GBW)<\/td><\/tr>
        TI<\/td>OPA227U<\/td>SOIC-8<\/td>Similar, lower noise, de-compensated<\/td><\/tr>
        ADI<\/td>OP07DRZ-REEL7<\/td>SOIC-8<\/td>Predecessor, lower speed, unity stable<\/td><\/tr>
        TI<\/td>OPA211AIDR<\/td>SOIC-8<\/td>1.1nV noise, 80MHz, modern alternative<\/td><\/tr>
        ADI<\/td>ADA4898-1ARZ<\/td>SOIC-8<\/td>0.9nV noise, 1GHz GBW, modern upgrade<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6837","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=6837"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/posts\/6837\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/media?parent=6837"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/categories?post=6837"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/tags?post=6837"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/ar\/wp-json\/wp\/v2\/chip_brand?post=6837"}],"curies":[{"name":"\u062f\u0628\u0644\u064a\u0648 \u0628\u064a","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}