{"id":2995,"date":"2026-05-29T01:32:15","date_gmt":"2026-05-29T01:32:15","guid":{"rendered":"https:\/\/materialparts.com\/hcpl-7800-000e\/"},"modified":"2026-05-29T01:32:15","modified_gmt":"2026-05-29T01:32:15","slug":"hcpl-7800-000e","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/hcpl-7800-000e\/","title":{"rendered":"HCPL-7800-000E"},"content":{"rendered":"

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

The HCPL-7800-000E from Broadcom (formerly Avago) is a high-precision isolation amplifier designed for current sensing in motor drive and power conversion applications. It provides galvanic isolation of 3750 Vrms with 0.05% gain accuracy and 0.3 mV input offset voltage. The device is optimized for sensing current through shunt resistors in noisy high-voltage environments.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Gain Accuracy<\/td>\n\u00b10.05%<\/td>\n<\/tr>\n
\u8f93\u5165\u5931\u8c03\u7535\u538b<\/td>\n0.3 mV (max)<\/td>\n<\/tr>\n
\u9694\u79bb\u7535\u538b<\/td>\n3750 Vrms<\/td>\n<\/tr>\n
Bandwidth<\/td>\n100 kHz<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n4.5 V to 5.5 V<\/td>\n<\/tr>\n
Supply Current<\/td>\n12 mA (input), 13 mA (output)<\/td>\n<\/tr>\n
CMRR<\/td>\n95 dB (DC)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nDIP-8 (wide body, 400 mil)<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • High-precision gain: \u00b10.05%<\/li>\n
  • Ultra-low input offset voltage: 0.3 mV max<\/li>\n
  • Excellent isolation: 3750 Vrms<\/li>\n
  • High CMRR: 95 dB at DC<\/li>\n
  • 100 kHz signal bandwidth<\/li>\n
  • Optimized for shunt resistor current sensing<\/li>\n
  • Safety approvals: UL, CSA, IEC<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Motor drive phase current sensing<\/li>\n
    • Inverter current feedback<\/li>\n
    • Switching power supply current monitoring<\/li>\n
    • Battery management current measurement<\/li>\n
    • Industrial process control<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The HCPL-7800-000E from Broadcom (formerly Avago) is a high-precision isolation amplifier designed for current sensing in motor drive and power conversion applications. It provides galvanic isolation of 3750 Vrms with 0.05% gain accuracy and 0.3 mV input offset voltage. The device is optimized for sensing current through shunt resistors in noisy high-voltage environments. […]<\/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":[13,20],"tags":[],"chip_brand":[198],"class_list":["post-2995","post","type-post","status-publish","format-standard","hentry","category-integrated-circuits-ics","category-interface-ics","chip_brand-broadcom"],"acf":{"brief_explanation":"Isolation amplifier, 0.05% gain accuracy, 3750Vrms isolation, 100kHz BW, shunt current sensing, DIP-8","date_code":"","package_case":"DIP-8 Wide Body (400 mil, 9.7 x 7.6 x 5.1 mm)","in_stock":12284,"datasheet":"https:\/\/docs.broadcom.com\/doc\/AV02-1289EN","price":"","product_introduction":"The HCPL-7800-000E is a high-precision isolation amplifier from Broadcom designed specifically for motor drive current sensing and other applications requiring accurate current measurement in the presence of high common-mode voltages. The device amplifies the small differential voltage developed across a shunt resistor while providing 3750 Vrms galvanic isolation between the high-voltage side and the low-voltage measurement side. With \u00b10.05% gain accuracy and 0.3 mV maximum input offset, it delivers measurement precision comparable to costly closed-loop Hall effect sensors but at a fraction of the cost. The sigma-delta modulation and digital isolation technique ensure excellent noise immunity and long-term stability.","working_principle":"The HCPL-7800-000E uses a sigma-delta analog-to-digital converter on the input side to digitize the differential voltage from the shunt resistor. The digitized signal is transmitted across an optical isolation barrier to the output side, where a DAC reconstructs the analog signal and an output amplifier drives the final voltage output. This approach provides excellent isolation, linearity, and noise immunity. The input amplifier has high common-mode rejection (95 dB at DC) to reject the large common-mode voltages present in motor drive applications. The gain is laser-trimmed to \u00b10.05% accuracy at the factory. The 100 kHz bandwidth captures the harmonic content of motor currents for accurate field-oriented control (FOC) algorithms.","pin_description":"
      Pin<\/th>Name<\/th>Type<\/th>Function<\/th><\/tr>
      1<\/td>VIN+<\/td>Input<\/td>Non-inverting differential input<\/td><\/tr>
      2<\/td>VIN-<\/td>Input<\/td>Inverting differential input<\/td><\/tr>
      3<\/td>VDD1<\/td>Power<\/td>Input side 5V supply<\/td><\/tr>
      4<\/td>GND1<\/td>Power<\/td>Input side ground<\/td><\/tr>
      5<\/td>GND2<\/td>Power<\/td>Output side ground<\/td><\/tr>
      6<\/td>VOUT<\/td>Output<\/td>Analog voltage output<\/td><\/tr>
      7<\/td>VDD2<\/td>Power<\/td>Output side 5V supply<\/td><\/tr>
      8<\/td>VREF<\/td>Output<\/td>Reference voltage output (2.5V)<\/td><\/tr><\/table>","application_scenarios":"
      • Three-phase motor drive current feedback for FOC<\/li>
      • Solar inverter MPPT current measurement<\/li>
      • UPS inverter output current monitoring<\/li>
      • EV\/HEV battery current sensing<\/li>
      • Welding equipment current regulation<\/li><\/ul>","alternative_models":"
        Manufacturer<\/th>Part Number<\/th>Package<\/th>Notes<\/th><\/tr>
        Broadcom<\/td>HCPL-7840-000E<\/td>DIP-8<\/td>Lower gain accuracy, lower cost<\/td><\/tr>
        Texas Instruments<\/td>AMC1301<\/td>SOIC-8<\/td>Isolated amplifier, 250mV input<\/td><\/tr>
        Analog Devices<\/td>ADuM3190<\/td>SOIC-16<\/td>Isolated error amplifier<\/td><\/tr>
        Infineon<\/td>TLE9187QK<\/td>TSSOP-16<\/td>Isolated current sense amplifier<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2995","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=2995"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/2995\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=2995"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=2995"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=2995"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=2995"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}