1. Products
  2. A/D Converters (ADC)
  3. Integrated/Special Purpose A/D Converters
  4. IF/RF Receivers
  5. AD9874


Features and Benefits

  • 10-300 MHz Input Frequency
  • Baseband (I/Q) Digital Output 
  • 2.7-3.6 Supply Voltage 
  • 10-270 KHz Output Signal Bandwidth 
  • 8 dB SSB NF
  • +1 dBm IIP3 (typ, max. bias)
  • 95 dB Dynamic Range with 12 dB Continuous AGC Range Enabled 
  • -18 or -30 dBm max IF Input with AGC Disabled 
  • LO and Clock Sampling Synthesizers 
  • Programmable Decimation Factor, Output Format, AGC, and Synthesizer settings

Product Details

The AD9874 is a general purpose IF subsystem that digitizes a low level 10-300MHz IF input signal with a bandwidth of up to 270 kHz. The signal chain of the AD9874 contains a low-noise amplifier, mixer, a band pass sigma-delta analog-to-digital converter and a decimation filter with programmable decimation factor. An automatic gain control (AGC) circuit provides the AD9874 with 12 dB of continuous gain adjustment.

The high dynamic range and inherent anti-aliasing provided by the bandpass sigma delta converter allows the AD9874 to cope with blocking signals 95 dB stronger than the desired signal. Auxiliary blocks include clock and LO synthesizers in addition to a serial peripheral interface port.

The SPI port programs numerous parameters of the AD9874, thus allowing the device to be optimized for any given application. Programmable parameters include synthesizer divide ratios, AGC attenuation and attack/decay time, received signal strength level, decimation factor, output data format, 16 dB attenuator, and the selected bias currents. The bias currents of the LNA and mixer can be further reduced at the expense of degraded performance for battery-powered applications.


  • Multimode Narrow-Band Radio Products
    - Analog/Digital UHF/VHF FDMA Receivers
  • Portable and Mobile Radio Products
  • Base Station Applications
  • SATCOM Terminals

Product Lifecycle icon-recommended Production

At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.

Evaluation Kits (1)

Design Resources

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Part Number Material Declaration Reliability Data Pin/Package Drawing CAD Symbols, Footprints & 3D Models
AD9874ABST Material Declaration Reliability Data 48-Lead LQFP (7mm x 7mm)
AD9874ABSTRL Material Declaration Reliability Data 48-Lead LQFP (7mm x 7mm)
Wafer Fabrication Data

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Evaluation Boards

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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.