Features and Benefits

  • Parallel LVDS (DDR) outputs
  • In-band SFDR = 82 dBFS at 340 MHz (500 MSPS)
  • In-band SNR = 67.8 dBFS at 340 MHz (500 MSPS)
  • 1.1 W total power per channel at 500 MSPS (default settings)
  • Noise density = −153 dBFS/Hz at 500 MSPS
  • 1.25 V, 2.50 V, and 3.3 V dc supply operation
  • Flexible input range: 1.46 V p-p to 2.06 V p-p (2.06 V p-p nominal)
  • 95 dB channel isolation/crosstalk
  • Amplitude detect bits for efficient automatic gain control (AGC) implementation
  • Noise shaping requantizer (NSR) option for main receiver function
  • See data sheet for additional features

Product Details

The AD6679 is a 135 MHz bandwidth mixed-signal intermediate frequency (IF) receiver. It consists of two, 14-bit, 500 MSPS analog-to-digital converters (ADCs) and various digital signal processing blocks consisting of four wideband DDCs, an NSR, and VDR monitoring. It has an on-chip buffer and a sample-and-hold circuit designed for low power, small size, and ease of use. This product is designed to support communications applications capable of sampling wide bandwidth analog signals of up to 2 GHz. The AD6679 is optimized for wide input bandwidth, high sampling rates, excellent linearity, and low power in a small package.

The dual ADC cores feature a multistage, differential pipelined architecture with integrated output error correction logic. Each ADC features wide bandwidth inputs supporting a variety of user-selectable input ranges. An integrated voltage reference eases design considerations.


  • Diversity multiband, multimode digital receivers
  • DOCSIS 3.0 CMTS upstream receive paths 
  • HFC digital reverse path receivers 

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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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.