Features and Benefits

  • Attenuation range: 0.5 dB LSB steps to 31.5 dB
  • Low insertion loss 
    • 1.1 dB to 1.0 GHz
    • 1.5 dB to 2.0 GHz
  • Tight attenuation accuracy
    • Less than ±0.25 dB (plus 3% of attenuation state)
  • Low phase shift error: 4° phase shift to 1.0 GHz
  • Bidirectional use: 30 dBm high power handling 
  • Internal dc block on the RFIN/RFOUT pins 
  • High linearity 
    • P1dB: 31 dBm typical 
    • Input IP3: 52 dBm typical
  • Safe state transitions
  • Serial interface with TTL/CMOS
    • Up to 8 devices on a single data bus
  • Single-supply operation: 3.3 V to 5.0 V  
  • ESD sensitivity rating: Class 1C (1 kV human body model) 
  • 16-lead, 3 mm × 3 mm LFCSP package: 9 mm2

Product Details

The HMC8073 is a 6-bit digital step attenuator (DSA), operating from 0.6 GHz to 3.0 GHz, that features 31.5 dB of attenuation range with 0.5 dB steps.

The HMC8073 is implemented in a silicon process, offering a fast settling time, low power consumption, and high electrostatic discharge (ESD) robustness. The device features safe state transitions, allowing attenuation state changes without overshooting, and is optimized for excellent step accuracy and high power and high linearity over frequency and temperature range. The radio frequency (RF) input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional, and the RF input and output are interchangeable.

The external address feature of the HMC8073 allows users to control up to eight DSAs using a single bus. The DSA has an on-chip regulator that supports a wide supply operating range from 3.3 V to 5.0 V with no performance change in electrical characteristics. The HMC8073 incorporates a complementary metal-oxide semiconductor (CMOS)- and transistor transitory logic (TTL)- compatible interface that supports serial (3-wire) control of the attenuator.

The HMC8073 comes in an RoHS compliant, compact, 3 mm × 3 mm LFCSP package.


  • Cellular infrastructure
  • Microwave radios 
  • Very small aperture terminals
  • Test equipment and sensors

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.

Evaluation Kits (1)

Tools & Simulations

IBIS Models


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.

PCN-PDN Information

Sample & Buy

Sample & Buy functionality exists in desktop site
Check Inventory

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.

Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.

Price Table Help

Evaluation Boards Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.