Alternative Parts


Features and Benefits

  • Broadband frequency range: 0.1 GHz to 18 GHz
  • Nonreflective 50 Ω design
  • Low insertion loss: 2.1 dB to 12 GHz
  • High isolation: 42 dB to 12 GHz
  • High input linearity
    • P1dB: 25 dBm typical at VSS = −5 V
    • IP3: 41 dBm typical
  • High power handling at VSS = −5 V
    • 24 dBm through path
    • 23 dBm terminated path
  • Integrated 2 to 4 line decoder
  • 8-pad, 1.92 mm × 1.60 mm × 0.102 mm, CHIP

Product Details

The HMC641A is a nonreflective, single-pole, four-throw (SP4T) switch, manufactured using a gallium arsenide (GaAs) process. This switch typically provides low insertion loss of 2.1 dB and high isolation of 42 dB in broadband frequency range from 0.1 GHz to 18 GHz.

The HMC641A includes an on-chip, binary 2 to 4 line decoder that provides control from two logic input lines.

The switch operates with a negative supply voltage of −5 V to −3 V and requires two negative logic control voltages.

All electrical performance data is acquired with the HMC641A that all RFx pads are connected to by the 50 Ω transmission lines via one 3.0 mil × 0.5 mil ribbon bond of minimal length.


  • Test instrumentation
  • Microwave radios and very small aperture terminals (VSATs)
  • Military radios, radars, and electronic counter measures (ECMs)
  • Broadband telecommunications systems

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.

Sample & Buy

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