{"id":7444,"date":"2026-06-24T06:52:27","date_gmt":"2026-06-24T06:52:27","guid":{"rendered":"https:\/\/materialparts.com\/hmc557lc4tr\/"},"modified":"2026-06-24T06:52:27","modified_gmt":"2026-06-24T06:52:27","slug":"hmc557lc4tr","status":"publish","type":"post","link":"https:\/\/materialparts.com\/zh\/hmc557lc4tr\/","title":{"rendered":"HMC557LC4TR"},"content":{"rendered":"

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

The HMC557LC4TR from Analog Devices is a GaAs PHEMT MMIC low-noise amplifier operating from 6GHz to 18GHz. Delivering 22dB typical gain with 2.5dB noise figure in a compact 4x4mm QFN package, it is designed for microwave radio, VSAT, and military applications requiring high gain and low noise performance.<\/p>\n

\u4e3b\u8981\u89c4\u683c<\/h2>\n\n\n\n\n\n\n\n\n\n\n
Frequency Range<\/td>\n6 – 18 GHz<\/td>\n<\/tr>\n
Gain<\/td>\n22 dB (typical)<\/td>\n<\/tr>\n
Noise Figure<\/td>\n2.5 dB (typical)<\/td>\n<\/tr>\n
Output P1dB<\/td>\n14 dBm (typical)<\/td>\n<\/tr>\n
Output IP3<\/td>\n26 dBm (typical)<\/td>\n<\/tr>\n
\u7535\u6e90\u7535\u538b<\/td>\n+5V<\/td>\n<\/tr>\n
Supply Current<\/td>\n85 mA (typical)<\/td>\n<\/tr>\n
\u5305\u88c5<\/td>\nQFN-24 (4×4 mm)<\/td>\n<\/tr>\n
\u5de5\u4f5c\u6e29\u5ea6<\/td>\n-40\u00b0C to +85\u00b0C<\/td>\n<\/tr>\n<\/table>\n

\u7279\u70b9<\/h2>\n
    \n
  • Wideband operation from 6GHz to 18GHz covering C\/X\/Ku bands<\/li>\n
  • High gain of 22dB with low 2.5dB noise figure<\/li>\n
  • Excellent output linearity: P1dB = 14dBm, OIP3 = 26dBm<\/li>\n
  • Single positive +5V supply operation<\/li>\n
  • Compact 4x4mm leadless QFN package for high-density PCB layouts<\/li>\n
  • 50-ohm matched input and output for easy system integration<\/li>\n<\/ul>\n

    \u5e94\u7528<\/h2>\n
      \n
    • Microwave point-to-point radio receivers<\/li>\n
    • VSAT satellite communication terminals<\/li>\n
    • Military and defense electronic warfare systems<\/li>\n
    • Test and measurement equipment front-ends<\/li>\n
    • Radar receiver low-noise amplification stages<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"

      Product Overview The HMC557LC4TR from Analog Devices is a GaAs PHEMT MMIC low-noise amplifier operating from 6GHz to 18GHz. Delivering 22dB typical gain with 2.5dB noise figure in a compact 4x4mm QFN package, it is designed for microwave radio, VSAT, and military applications requiring high gain and low noise performance. Key Specifications Frequency Range 6 […]<\/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-7444","post","type-post","status-publish","format-standard","hentry","category-analog-linear-ics","category-integrated-circuits-ics","chip_brand-adi"],"acf":{"brief_explanation":"6-18GHz GaAs PHEMT LNA, 22dB gain, 2.5dB NF, +5V, QFN-24 (4x4mm)","date_code":"","package_case":"QFN-24 (4 x 4 x 0.9 mm)","in_stock":2345,"datasheet":"https:\/\/www.analog.com\/en\/products\/hmc557.html","price":".50 @ 1ku","product_introduction":"The HMC557LC4TR from Analog Devices is a GaAs PHEMT MMIC low-noise amplifier covering the 6GHz to 18GHz frequency range, ideal for C-band through Ku-band microwave receiver applications. The device provides 22dB of typical gain with a low 2.5dB noise figure, enabling detection of weak signals in demanding receiver chains. With output P1dB of 14dBm and OIP3 of 26dBm, it delivers excellent linearity for high-dynamic-range systems. The amplifier operates from a single +5V supply drawing 85mA and is packaged in a compact 4x4mm QFN-24 package with 50-ohm matched input and output ports, simplifying PCB design and enabling high-density integration in modern microwave systems.","working_principle":"The HMC557LC4TR is a monolithic microwave integrated circuit (MMIC) amplifier based on GaAs PHEMT (Pseudomorphic High Electron Mobility Transistor) technology. (1) The input matching network provides 50-ohm impedance matching across the 6-18GHz bandwidth, delivering the RF signal to the gate of the first PHEMT gain stage with minimal reflection loss. (2) The multi-stage PHEMT amplifier core provides 22dB of gain through cascaded common-source transistor stages, each biased for optimal noise and linearity performance using on-chip bias networks fed from the +5V supply. (3) The output matching network transforms the drain impedance to 50 ohms for maximum power transfer to the load while maintaining P1dB of 14dBm and OIP3 of 26dBm for linear operation under strong signal conditions.","pin_description":"
      Pin<\/th>Name<\/th>Function<\/th><\/tr>
      1<\/td>RFIN<\/td>RF input (50-ohm matched)<\/td><\/tr>
      2-6<\/td>GND<\/td>RF and DC ground<\/td><\/tr>
      7-12<\/td>GND<\/td>RF and DC ground<\/td><\/tr>
      13<\/td>RFOUT\/VDD<\/td>RF output and DC supply (50-ohm matched)<\/td><\/tr>
      14-18<\/td>GND<\/td>RF and DC ground<\/td><\/tr>
      19-24<\/td>GND<\/td>RF and DC ground<\/td><\/tr>
      Pad<\/td>GND<\/td>Exposed thermal pad (ground)<\/td><\/tr><\/table>","application_scenarios":"
      • Microwave point-to-point radio receiver front-ends requiring low noise figure<\/li>
      • VSAT satellite terminal low-noise block downconverter (LNB) stages<\/li>
      • Electronic warfare receiver systems covering C through Ku bands<\/li>
      • Microwave test equipment signal conditioning front-ends<\/li>
      • Radar receiver chains requiring high gain and low noise amplification<\/li><\/ul>","alternative_models":"
        Model<\/th>Manufacturer<\/th>Key Difference<\/th><\/tr>
        HMC518LC4<\/td>Analog Devices<\/td>6-18GHz LNA, slightly different gain\/NF<\/td><\/tr>
        HMC751LC4<\/td>Analog Devices<\/td>6-18GHz LNA, lower noise figure<\/td><\/tr>
        MAAL-007100-0001<\/td>MACOM<\/td>6-18GHz GaAs LNA, similar specs<\/td><\/tr>
        CHS-018-0516<\/td>Cernex<\/td>6-18GHz LNA module<\/td><\/tr>
        AWL6951<\/td>Analog Devices<\/td>Wideband LNA, different topology<\/td><\/tr><\/table>"},"_links":{"self":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7444","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=7444"}],"version-history":[{"count":0,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/posts\/7444\/revisions"}],"wp:attachment":[{"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/media?parent=7444"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/categories?post=7444"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/tags?post=7444"},{"taxonomy":"chip_brand","embeddable":true,"href":"https:\/\/materialparts.com\/zh\/wp-json\/wp\/v2\/chip_brand?post=7444"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}