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  2. RF and Microwave
  3. Attenuators
  4. Digital Step Attenuators
  5. ADRF5474


Features and Benefits

  • Ultrawideband frequency range: 10 MHz to 60 GHz
  • Attenuation range: 22 dB with 2 dB steps
  • Bond pads for wire bond and ribbon bond
  • Low insertion loss
    • 1.3 dB typical up to 20 GHz
    • 2.0 dB typical up to 44 GHz
    • 2.7 dB typical up to 55 GHz
  • Attenuation accuracy
    • ±(0.3 + 1.0% of attenuation state) typical up to 20 GHz
    • ±(0.4 + 4.0% of attenuation state) typical up to 44 GHz
    • ±(0.4 + 6.0% of attenuation state) typical up to 55 GHz
  • Typical step error
    • ±0.30 dB typical up to 20 GHz
    • ±0.65 dB typical up to 44 GHz
    • ±1.10 dB typical up to 55 GHz
  • High input linearity
    • P0.1dB: 25.5 dBm typical
    • IP3: 45 dBm typical
  • High RF power handling
    • 23 dBm steady state and hot switching, average
    • 24 dBm steady state and hot switching, peak
  • Tight distribution in relative phase
  • No low frequency spurious signals
  • Parallel mode control, CMOS/LVTTL compatible
  • RF amplitude settling time (0.1 dB of final RF output): 175 ns
  • 16-pad, 2.770 mm × 1.620 mm, die on carrier [CHIP]

Product Details

The ADRF5474 is a 4-bit digital attenuator with 22 dB attenuation control range in 2 dB steps manufactured in a silicon process attached on a gallium arsenide (GaAs) carrier substrate. The substrate incorporates the bond pads for chip and wire assembly, and the bottom of the device is metalized and connected to ground.

This device operates from 10 MHz to 60 GHz with better than 2.7 dB of insertion loss and excellent attenuation accuracy at 55 GHz. The ADRF5474 has a RF input power handling capability of 23 dBm average and 24 dBm peak for all states.

The ADRF5474 requires a dual-supply voltage of +3.3 V and −3.3 V. The device features parallel mode control, and complementary metal-oxide semiconductor (CMOS)-/low voltage transistor to transistor logic (LVTTL)-compatible controls.

The ADRF5474 is designed to match a characteristic impedance of 50 Ω.


  • Industrial scanners
  • Test and instrumentation
  • Cellular infrastructure: 5G millimeterwave
  • Military radios, radars, electronic counter measures (ECMs)
  • Microwave radios and very small aperture terminals (VSATs)
  • 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 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.View our quality and reliability program and certifications for more information.

    Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
    ADRF5474BCZ Material Declaration Reliability Data CHIPS OR DIE
    ADRF5474BCZ-GP Material Declaration Reliability Data CHIPS OR DIE
    ADRF5474BCZ-SX Material Declaration Reliability Data CHIPS OR DIE
    Wafer Fabrication Data

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