{"id":3730,"date":"2026-06-08T02:28:59","date_gmt":"2026-06-08T02:28:59","guid":{"rendered":"https:\/\/materialparts.com\/amc1301dwvr\/"},"modified":"2026-06-08T02:28:59","modified_gmt":"2026-06-08T02:28:59","slug":"amc1301dwvr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/amc1301dwvr\/","title":{"rendered":"AMC1301DWVR"},"content":{"rendered":"

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

The AMC1301DWVR from Texas Instruments is a precision reinforced isolated amplifier with +\/-250mV input range optimized for shunt-based current sensing. It features fixed 8.2V\/V gain, 7070Vpk reinforced isolation, and 15kV\/us CMTI in a wide-body SOIC-8 package.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Input Range<\/td>\n+\/-250mV (differential)<\/td>\n<\/tr>\n
Fixed Gain<\/td>\n8.2 V\/V<\/td>\n<\/tr>\n
Gain Error<\/td>\n+\/-0.3% (max)<\/td>\n<\/tr>\n
Offset Error<\/td>\n+\/-0.2mV (max)<\/td>\n<\/tr>\n
Offset Drift<\/td>\n+\/-3uV\/C (max)<\/td>\n<\/tr>\n
Nonlinearity<\/td>\n0.03% (max)<\/td>\n<\/tr>\n
Isolation Rating<\/td>\n7070Vpk (reinforced), 5000Vrms (UL1577)<\/td>\n<\/tr>\n
Working Voltage<\/td>\n1000Vrms<\/td>\n<\/tr>\n
CMTI<\/td>\n15kV\/us (min)<\/td>\n<\/tr>\n
Bandwidth<\/td>\n210kHz (typ)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n3.0V to 5.5V (high and low side)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40 to 125 C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • +\/-250mV input optimized for shunt resistor current sensing<\/li>\n
  • Fixed gain of 8.2V\/V with low drift<\/li>\n
  • 7070Vpk reinforced isolation per DIN EN IEC 60747-17<\/li>\n
  • 5000Vrms isolation per UL1577<\/li>\n
  • 15kV\/us common-mode transient immunity<\/li>\n
  • Integrated diagnostics: common-mode overvoltage and supply loss detection<\/li>\n
  • Highly resistant to magnetic interference<\/li>\n
  • 3.3V or 5V operation on both sides<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Motor drive current sensing<\/li>\n
    • Onboard charger (OBC) current measurement<\/li>\n
    • DC-DC converter current sensing<\/li>\n
    • Frequency inverter shunt measurement<\/li>\n
    • Battery management system (BMS) current sensing<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The AMC1301DWVR from Texas Instruments is a precision reinforced isolated amplifier with +\/-250mV input range optimized for shunt-based current sensing. It features fixed 8.2V\/V gain, 7070Vpk reinforced isolation, and 15kV\/us CMTI in a wide-body SOIC-8 package. Key Specifications Input Range +\/-250mV (differential) Fixed Gain 8.2 V\/V Gain Error +\/-0.3% (max) Offset Error +\/-0.2mV […]<\/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-3730","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-ti"],"acf":{"brief_explanation":"Isolated amp, +\/-250mV in, 8.2V\/V gain, 7070Vpk isolation, shunt current sensing, SOIC-8","date_code":"","package_case":"Wide-body SOIC-8 DWV (5.85 x 7.50 x 2.35 mm)","in_stock":4228,"datasheet":"https:\/\/www.ti.com\/lit\/ds\/symlink\/amc1301.pdf","price":"$2.07 @ 1ku","product_introduction":"The AMC1301DWVR from Texas Instruments is a precision isolated amplifier with a +\/-250mV input voltage range optimized for current measurements using shunt resistors. The device features a fixed gain of 8.2V\/V with excellent DC accuracy: +\/-0.2mV offset error, +\/-0.3% gain error, and 0.03% nonlinearity. The input circuitry is separated from the output by a reinforced isolation barrier certified to 7070Vpk per DIN EN IEC 60747-17 (VDE 0884-17) and 5000Vrms per UL1577, supporting a working voltage of up to 1000Vrms. The isolation barrier is highly resistant to magnetic interference and provides 15kV\/us minimum common-mode transient immunity. Integrated diagnostic features include common-mode overvoltage detection and missing high-side supply voltage detection, simplifying system-level fault handling. Both the high-side and low-side operate from 3.0V to 5.5V, and the device is available in a wide-body 8-pin SOIC (DWV) package rated for -40 to 125 C.","working_principle":"The AMC1301DWVR operates as a precision isolated amplifier using capacitive isolation technology. Key subsystems include: (1) High-Side Input Stage - a differential amplifier with +\/-250mV input range accepts signals directly from shunt resistors; the input is optimized for low voltage levels with high common-mode rejection; (2) Modulator - a sigma-delta modulator on the high-side converts the analog input to a digital bitstream; (3) Capacitive Isolation Barrier - two high-voltage capacitors transmit the digital bitstream across the isolation barrier; this barrier provides reinforced isolation up to 7070Vpk and is highly resistant to magnetic interference unlike optocouplers; (4) Demodulator - on the low side, a demodulator reconstructs the analog signal from the received bitstream; (5) Output Filter - an internal analog filter produces the differential output voltage centered at VDD2\/2; (6) Diagnostic Circuit - monitors the high-side common-mode voltage and supply; a fault condition drives the differential output to a failsafe voltage level (-2.545V) that can be detected by the downstream ADC.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VDD1<\/td>Power<\/td>High-side supply (3.0-5.5V)<\/td><\/tr>
      2<\/td>VINN<\/td>Input<\/td>Negative differential input<\/td><\/tr>
      3<\/td>VINP<\/td>Input<\/td>Positive differential input<\/td><\/tr>
      4<\/td>GND1<\/td>Power<\/td>High-side ground<\/td><\/tr>
      5<\/td>GND2<\/td>Power<\/td>Low-side ground<\/td><\/tr>
      6<\/td>VOUTN<\/td>Output<\/td>Negative differential output<\/td><\/tr>
      7<\/td>VOUTP<\/td>Output<\/td>Positive differential output<\/td><\/tr>
      8<\/td>VDD2<\/td>Power<\/td>Low-side supply (3.0-5.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Motor drive current sensing: shunt resistor measurement with galvanic isolation from high-voltage bus<\/li>
      • OBC current measurement: isolated shunt sensing in onboard EV chargers<\/li>
      • DC-DC converter: output current monitoring with reinforced isolation<\/li>
      • Frequency inverter: phase current measurement using shunt resistors<\/li>
      • BMS current sensing: isolated battery current measurement in energy storage systems<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        TI<\/td>AMC1300DWVR<\/td>SOIC-8<\/td>+\/-250mV, higher bandwidth (300kHz)<\/td><\/tr>
        TI<\/td>AMC1301SDWVR<\/td>SOIC-8<\/td>Extended temp: -55 to 125C<\/td><\/tr>
        Analog Devices<\/td>ADuM3190ARQZ<\/td>QSOP-16<\/td>Isolated error amplifier, different function<\/td><\/tr>
        TI<\/td>AMC1210M38<\/td>TQFP-48<\/td>4-ch isolated modulator<\/td><\/tr>
        Silicon Labs<\/td>Si8920B-IS<\/td>SOIC-8<\/td>Isolated amplifier, +\/-312mV input<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3730","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=3730"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/3730\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=3730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=3730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=3730"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=3730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}