Features and Benefits

  • Wide Bandwidth: DC - 50 GHz
  • 9 Attenuator Products:
    0, 2, 3, 4, 6, 10, 15, & 20 dB Fixed Levels
  • Power Handling: +25 dBm
  • HMC651 & HMC658
    Die Size: 0.57 × 0.45 × 0.1 mm
  • HMC650, HMC652, HMC653, HMC654, HMC655, HMC656 & HMC657
    Die Size: 0.42 × 0.45× 0.1 mm
  • Included in the HMC-DK006 Designer’s Kit

Product Details

The HMC650/HMC651/HMC652/HMC653/HMC654/HMC655/HMC656/HMC657/HMC658 are a line of wideband fixed value 50 Ohm matched attenuator chips which offer relative attenuation levels of 0, 2, 3, 4, 6, 10, 15 and 20 dB. These passive thoughlines and attenuators are ideal for microstrip, hybrid, and multi-chip module applications where extremely flat attenuation, and excellent VSWR vs. frequency are required.

These wideband attenuators feature low inductance on-chip vias, and require no additional ground connections. The HMC650 through HMC658 are backside metallized with gold, and are suitable for eutectic or epoxy die attach. Each of the 9 products can be purchased individually by their respective part number or in a set of 10 each in the HMC-DK006 Fixed Attenuator Chip Designer’s Kit.


  • Fiber Optics
  • Microwave Radio
  • Military & Space Hybrids
  • Test & Measurement
  • Scientific Instruments
  • RF/Microwave Circuit Prototyping

Product Categories

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.

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

Sample & Buy functionality exists in desktop site
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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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