Features and Benefits

  • 24 GHz to 24.25 GHz VCO (industrial, scientific, and medical (ISM) radio band)
  • 2-channel 24 GHz power amplifier with 8 dBm output
  • Single-ended outputs
  • 2-channel muxed outputs with mute function
  • Programmable output power
  • LO output buffer
  • RF frequency range: 24 GHz to 24.25 GHz
  • Power control detector
  • Auxiliary 8-bit ADC
  • High and low speed FMCW ramp generation
  • 25-bit fixed modulus allows subhertz frequency resolution
  • PFD frequencies up to 110 MHz
  • Normalized phase noise floor of −222 dBc/Hz
  • Programmable charge pump currents
  • ±5°C temperature sensor
  • 4-wire SPI
  • ESD performance
    • HBM: 2000 V
    • CDM: 250 V
  • Qualified for automotive applications

Product Details

The ADF5902 is a 24 GHz transmitter (Tx) monolithic microwave integrated circuit (MMIC) with an on-chip, 24 GHz voltage controlled oscillator (VCO). The VCO features a fractional-N frequency synthesizer with waveform generation capability with programmable grid array (PGA) and dual transmitter channels for radar systems. The on-chip, 24 GHz VCO generates the 24 GHz signal for the two transmitter channels and the local oscillator (LO) output. Each transmitter channel contains a power control circuit. There is also an on-chip temperature sensor.

Control of all the on-chip registers is through a simple, 4-wire serial peripheral interface (SPI).

The ADF5902 comes in a compact, 32-lead, 5 mm × 5 mm LFCSP package.


  • Automotive radars
  • Industrial radars
  • Microwave radar 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.

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Product Recommendations

ADF5902 Companion Parts

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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.

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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.