Features and Benefits

  • Attenuation range: 0.25 dB LSB steps to 31.75 dB
  • Low insertion loss:
    • 1.1 dB at 1.0 GHz
    • 1.3 dB at 2.0 GHz
  • Typical step error: less than ±0.1 dB
  • Excellent attenuation accuracy: less than ±0.2 dB
  • Low phase shift error: 6° phase shift at 1.0 GHz
  • Safe state transitions
  • High linearity
    • 1 dB compression (P1dB): 31 dBm typical
    • Input third-order intercept (IP3): 54 dBm typical
  • RF settling time (0.05 dB final RF output): 250 ns
  • Single supply operation: 3.3 V to 5.0 V
  • ESD rating: Class 2 (2 kV human body model (HBM))
  • 24-lead, 4 mm × 4 mm LFCSP package: 16 mm2

Product Details

The HMC1119 is a broadband, highly accurate, 7-bit digital attenuator, operating from 0.1 GHz to 6.0 GHz with 31.5 dB attenuation control range in 0.25 dB steps.

The HMC1119 is implemented in a silicon process, offering very fast settling time, low power consumption, and high ESD robustness. The device features safe state transitions and is optimized for excellent step accuracy and high linearity over frequency and temperature range. The RF input and output are internally matched to 50 Ω and do not require any external matching components. The design is bidirectional; therefore, the RF input and output are interchangeable.

The HMC1119 has an on-chip regulator that can support a wide supply operating range from 3.3 V to 5.0 V with no performance change in electrical characteristics. The HMC1119 incorporates a driver that supports serial (3-wire) and parallel controls of the attenuator.

The HMC1119 comes in a RoHS-compliant, compact, 4 mm × 4 mm LFCSP package.

A fully populated evaluation board is available.


  • Cellular infrastructure
  • Microwave radios and very small aperture terminals (VSATs)
  • Test equipment and sensors
  • IF and RF designs

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 (2)

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

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.