Features and Benefits

  • High Isolation: 45 dB @ 20 GHz
  • Low Insertion Loss: 1.7 dB @ 20 GHz
  • Non-Reflective Design
  • Small Size: 1.3 x 0.85 x 0.1 mm

Product Details

The HMC347B is a broadband non-reflective GaAs pHEMT SPDT MMIC chip. Covering 0.1 to 20 GHz, the switch offers high isolation and low insertion loss. The switch features over 52 dB isolation at lower frequencies and over 45 dB at higher frequencies due to the implementation of on-chip via hole structures. The switch operates using two negative control voltage logic lines of -5/0V, requires no Vee and has no current consumption. The switch operates down to 0.1 GHz. The chip features coplanar I/Os that allow 100% RF testing prior to delivery to the customer.


  • Fiber Optics
  • Microwave Radio
  • Military
  • Space
  • VSAT

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

Tools & Simulations


Design Tools


ADIsimRF is an easy-to-use RF signal chain calculator. Cascaded gain, noise, distortion and power consumption can be calculated, plotted and exported for signal chains with up to 50 stages. ADIsimRF also includes an extensive data base of device models for ADI’s RF and mixed signal components.

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well.  "Zero defects" for shipped products is always our goal.


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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.

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