Alternative Parts

  • ADRF5021

    Packaged alternative in Silicon (SOI)

  • ADRF5020

    Packaged alternative in Silicon (SOI)


Features and Benefits

  • High Isolation: >40 dB @ 20 GHz
  • Low Insertion Loss: 2.1 dB @ 20 GHz
  • Non-Reflective Design
  • Small Size: 1.22 × 0.85 × 0.1 mm

Product Details

The HMC347A is a broadband non-reflective GaAs pHEMT SPDT MMIC chip. Covering DC to 20 GHz, the switch offers high isolation and low insertion loss. The switch features over 52 dB isolation at lower frequencies and over 40 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 DC. The chip features coplanar I/Os that allow 100% RF testing prior to delivery to the customer.


  • Fiber optics
  • Microwave radio 
  • Military
  • Space
  • VSAT

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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