Features and Benefits

  • 1.0 dB LSB steps to 31 dB
  • Single positive control line per bit
  • ±1.0 dB typical bit error
  • Input IP3: 43 dBm
  • CMOS-compatible control
  • Hermetically sealed module
  • Field replaceable K-type connectors
  • Operating temperature: −55°C to +85°C

Product Details

The HMC-C584 is a 0.1 GHz to 40 GHz, 5-bit, gallium arsenide (GaAs) IC digital attenuator housed in a miniature hermetic module. This wideband attenuator features 7 dB typical insertion loss, 43 dBm input IP3, and bit values of 1 dB (LSB), 2 dB, 4 dB, 8 dB, and 16 dB for a total attenuation range of 31 dB. The attenuation accuracy of the device has a ±1.0 dB typical step error. Five control voltage inputs, toggled between 0 V and 5 V, are used to select each attenuation state. Removable K-type connectors can be detached to allow direct connection of the input/output pins of the module to a microstrip or coplanar circuit.


  • Fiber optics and broadband telecommunications
  • Microwave radios and VSATs
  • Military radios, radars, and electronic counter measures (ECM)
  • Space systems
  • Test instrumentation

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.