{"id":11422,"date":"2026-07-26T06:52:35","date_gmt":"2026-07-26T06:52:35","guid":{"rendered":"https:\/\/ic-vendor.com\/amc1211aqdwvrq1\/"},"modified":"2026-07-26T06:52:35","modified_gmt":"2026-07-26T06:52:35","slug":"amc1211aqdwvrq1","status":"publish","type":"post","link":"https:\/\/ic-vendor.com\/zh\/amc1211aqdwvrq1\/","title":{"rendered":"AMC1211AQDWVRQ1"},"content":{"rendered":"

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The Texas Instruments AMC1211AQDWVRQ1 is an automotive-grade basic isolation amplifier. AEC-Q100 qualified, 2V high-impedance input, fixed gain of 1, 3000Vrms isolation for EV traction inverter and OBC voltage sensing.<\/p>\n

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\u7c7b\u578b<\/td>\nAutomotive Isolation Amplifier<\/td>\n<\/tr>\n
Grade<\/td>\nAEC-Q100 Grade 1<\/td>\n<\/tr>\n
Gain<\/td>\n1 (Fixed)<\/td>\n<\/tr>\n
Input Range<\/td>\n2V high-impedance<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n3000 Vrms (UL1577) \/ 4250 VPK (VDE)<\/td>\n<\/tr>\n
CMTI<\/td>\n30 kV\/us min<\/td>\n<\/tr>\n
Offset Error<\/td>\n+\/-1.5 mV max<\/td>\n<\/tr>\n
Gain Error<\/td>\n+\/-0.2% max<\/td>\n<\/tr>\n
Supply<\/td>\n3.3V high-side<\/td>\n<\/tr>\n
Bandwidth<\/td>\n275 kHz -3dB<\/td>\n<\/tr>\n
Operating Temp<\/td>\n-40 to +125C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nDWV (Wide SOIC-8) 5.85×7.50mm<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • AEC-Q100 Grade 1 automotive qualified<\/li>\n
  • 2V high-impedance input optimized for voltage sensing<\/li>\n
  • Fixed gain 1 simplifies system design<\/li>\n
  • 3000Vrms isolation (UL1577) \/ 4250VPK (VDE 0884-17)<\/li>\n
  • 30 kV\/us high CMTI for noisy environments<\/li>\n
  • Functional safety capable<\/li>\n
  • High-side supply missing indicator<\/li>\n
  • 3.3V single high-side supply<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • EV traction inverter phase voltage sensing<\/li>\n
    • On-board charger DC-link voltage sensing<\/li>\n
    • DC-DC converter high-side voltage sensing<\/li>\n
    • Industrial motor drive isolated voltage measurement<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The Texas Instruments AMC1211AQDWVRQ1 is an automotive-grade basic isolation amplifier. AEC-Q100 qualified, 2V high-impedance input, fixed gain of 1, 3000Vrms isolation for EV traction inverter and OBC voltage sensing. Key Specifications Type Automotive Isolation Amplifier Grade AEC-Q100 Grade 1 Gain 1 (Fixed) Input Range 2V high-impedance Isolation Voltage 3000 Vrms (UL1577) \/ 4250 […]<\/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":[2693],"chip_brand":[138],"class_list":["post-11422","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","tag-amc1211aqdwvrq1","chip_brand-ti"],"acf":{"brief_explanation":"Automotive isolation amp, AEC-Q100, 2V input, gain 1, 3kVrms, DWV-8","date_code":"","package_case":"DWV SOIC-8 (5.85x7.50x4.00mm)","in_stock":2145,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/amc1211-q1.pdf","price":"$2.66 @ 1ku","product_introduction":"The AMC1211AQDWVRQ1 from Texas Instruments is an automotive-grade basic isolation amplifier qualified to AEC-Q100 Grade 1 (-40 to 125C). The 2V high-impedance input is optimized for isolated voltage sensing in EV traction inverters, on-board chargers, and DC-DC converters. Fixed gain of 1 simplifies system calibration. 3000Vrms isolation (UL1577) and 4250VPK basic isolation (VDE 0884-17) provide safety-rated galvanic separation. 30 kV\/us CMTI ensures reliable operation in high-noise switching environments. Functional safety capable with high-side supply missing indicator.","working_principle":"A modulated sigma-delta ADC on the high side digitizes the 2V input. The digital data is transmitted across a capacitive isolation barrier to the low side, where a sigma-delta demodulator reconstructs the analog output as a differential voltage. The isolation barrier provides galvanic separation rated to 3000Vrms. The fixed gain of 1 means the output voltage directly represents the input voltage, simplifying calibration.","pin_description":"
      Pin<\/th>Name<\/th>Description<\/th><\/tr>
      1<\/td>VDD1<\/td>3.3V high-side supply<\/td><\/tr>
      2<\/td>VIN+<\/td>Non-inverting input<\/td><\/tr>
      3<\/td>VIN-<\/td>Inverting input \/ GND1<\/td><\/tr>
      4<\/td>GND1<\/td>High-side ground<\/td><\/tr>
      5<\/td>VOUT+<\/td>Differential output +<\/td><\/tr>
      6<\/td>VOUT-<\/td>Differential output -<\/td><\/tr>
      7<\/td>GND2<\/td>Low-side ground<\/td><\/tr>
      8<\/td>VDD2<\/td>3.3V low-side supply<\/td><\/tr><\/table>","application_scenarios":"
      • EV inverter voltage sensing<\/li>
      • OBC DC-link sensing<\/li>
      • DC-DC voltage sensing<\/li>
      • Motor drive isolated measurement<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        AMC1311Q1<\/td>TI<\/td>Higher gain, different input range<\/td><\/tr>
        AMC1301<\/td>TI<\/td>Reinforced isolation version<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11422","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=11422"}],"version-history":[{"count":0,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/posts\/11422\/revisions"}],"wp:attachment":[{"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/media?parent=11422"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/categories?post=11422"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/tags?post=11422"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/ic-vendor.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=11422"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}