ADRF5731
Info : RECOMMENDED FOR NEW DESIGNS
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ADRF5731

2 dB LSB, 4-Bit, Silicon Digital Attenuator, 100 MHz to 40 GHz

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Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Part Details
Part Models 2
1ku List Price Starting From $81.12
Features
  • Ultrawideband frequency range: 100 MHz to 40 GHz
  • Attenuation range: 2 dB steps to 30 dB
  • Low insertion loss
    • 1.7 dB to 18 GHz
    • 2.2 dB to 26 GHz
    • 3.5 dB to 40 GHz
  • Attenuation accuracy
    • ±(0.1 + 2.0%) of attenuation state up to 18 GHz
    • ±(0.2 + 2.5%) of attenuation state up to 26 GHz
    • ±(0.5 + 10.0%) of attenuation state up to 40 GHz
  • High RF input power handling: 26 dBm average, 30 dBm peak
  • Tight distribution in relative phase
  • Typical step error
    • ±0.15 dB to 18 GHz
    • ±0.20 dB to 26 GHz
    • ±0.60 dB to 40 GHz
  • High input linearity
    • P0.1dB insertion loss state: 30 dBm
    • P0.1dB other attenuation states: 26 dBm
    • IP3: 50 dBm typical
  • No low frequency spurious signals
  • SPI and parallel mode control, CMOS/LVTTL compatible
  • RF amplitude settling time (0.1 dB of final RF output): 230 ns
  • 2.5 mm × 2.5 mm, 16-terminal LGA package
  • Pin compatible with ADRF5721, low frequency cutoff version
Additional Details
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The ADRF5731 is a silicon, 4-bit digital attenuator with a 30 dB attenuation control range in 2 dB steps.

This device operates from 100 MHz to 40 GHz with better than 3.5 dB of insertion loss. The ATTIN port of the ADRF5720 has a radio frequency (RF) input power handling capability of 26 dBm average and 30 dBm peak for all states.

The ADRF5731 requires a dual supply voltage of +3.3 V and −3.3 V. The device features serial peripheral interface (SPI), parallel mode control, and complementary metal-oxide semiconductor (CMOS)-/low voltage transistor to transistor logic (LVTTL) compatible controls.

The ADRF5731 is pin compatible with the ADRF5721 low frequency cutoff version, which operates from 9 kHz to 40 GHz.

The ADRF5731 RF ports are designed to match a characteristic impedance of 50 Ω.

The ADRF5731 comes in a 16-terminal, 2.5 mm × 2.5 mm, RoHS compliant, land grid array (LGA) package and operates from −40°C to +105°C.

Applications

  • Industrial scanners
  • Test and instrumentation
  • Cellular infrastructure: 5G millimeter wave
  • Military radios, radars, electronic counter measures (ECMs)
  • Microwave radios and very small aperture terminals (VSATs)
Part Models 2
1ku List Price Starting From $81.12

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Documentation

Documentation

Part Model Pin/Package Drawing Documentation CAD Symbols, Footprints, and 3D Models
ADRF5731BCCZN
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ADRF5731BCCZN-R7
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Software & Part Ecosystem

Software & Part Ecosystem

Evaluation Kit

Evaluation Kits 1

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EVAL-ADRF5731

ADRF5731 Evaluation Board

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EVAL-ADRF5731

ADRF5731 Evaluation Board

ADRF5731 Evaluation Board

Product Detail

The ADRF5731-EVALZ is a 4-layer evaluation board. Each copper layer is 2.2 mil (1.5 oz) and separated by dielectric materials.

All RF and dc traces are routed on the top copper layer whereas the inner and bottom layers are grounded planes that provide a solid ground for the RF transmission lines. Top dielectric material is 12 mil Rogers RO4003, offering optimal high frequency performance. The middle and bottom dielectric materials provide mechanical strength. The overall board thickness is 62 mil, which allows 2.4 mm RF launchers to be connected at the board edges.

Tools & Simulations

Tools & Simulations 3

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