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Industry's Fastest 12-bit ADC Family Enables a New Generation of SDR Architectures

Texas Instruments enables a new generation of high dynamic range, wide bandwidth software-defined radio (SDR) architectures and applications.

With the industry's fastest 12-bit ADC family, ADC12J4000/2700/1600, and previous ADC12D1800/1600/1000, TI continues to expand its portfolio of GSPS ADCs which pair with TI's wideband amplifiers and low-noise clock & timing solutions to meet SDR's need for superior analog performance to recover data with very high sensitivity from multiple channel and RF applications requiring:

  • Wide input bandwidth (3.0GHz)
  • Frequency flexibility (Integrated NCO/DDC)
  • Multiple mixing stages
  • Any combination of the above

Key Applications

  • Wideband communications
  • Multi-standard/multi-carrier base stations
  • Military communications/signal intelligence
  • Data acquisition
  • RADAR/LIDAR
  • Optical networks
  • Microwave backhaul
  • Multi-tuner set-top boxes

Featured Product

ADC12J4000 - 12-bit, single 4 GSPS JESD204B RF-Sampling ADC:


RF-Sampling and GSPS ADCs

RF-Sampling and GSPS ADCs

Breakthrough ADCs Revolutionize Radio Architectures

(PDF, 2MB)

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Related Products

Res Channels Max Sampling Rate (GSPS)
0.5 GSPS 1.0 GSPS 1.5 GSPS 2.0 GSPS 3.0 GSPS 3.6 GSPS 4 GSPS
12-bit Single   ADC12D500RF ADC12J1600*
ADC12D800RF
ADC12J2700*
ADC12D1000
ADC12D1000RF
ADC12D1600
ADC12D1600RF
ADC12D1800
ADC12D1800RF
ADC12J4000*
Dual ADC12D500RF
ADC12D800RF
ADC12D1000
ADC12D1000RF
ADC12D1600
ADC12D1600RF
ADC12D1800
ADC12D1800RF
     

*ADC12J4000/2700/1600 usable for sampling rates from 1GSPS to 4GSPS, 2.7GSPS, and 1.6GSPS respectively

 

Software-Defined Radio vs Traditional Hardware-Defined Radio

In multi-channel and RF systems, hardware defined radio (HDR) implementations require a significant amount of analog signal processing for every channel, leading to larger board size, increased analog design complexity, limited flexibility, and RF interference susceptibility.

With the SDR approach, signal processing is moved to the digital domain providing various benefits:

  • Low analog complexity
  • Less susceptibility for RF interference
  • Unlimited flexibility
  • Analog power does not increase with increased Rx channels

Traditional HDR Solution

Bypass - Spectral Response

  • High analog complexity
  • RF interference susceptibility
  • Limited flexibility
  • Redesign required for any additional features
  • Analog power, area and weight scales with channels
  • Spurious Free Dynamic Range (SFDR)
  • Effective Number of Bits (ENOB)
  • Signal-to-Noise Ratio (SNR)

New Wideband SDR Solution

  • Low analog complexity
  • Less susceptibility to RF interference
  • Unlimited flexibility
  • Analog power does not increase with increased Rx channels
  • Low power, small size, and lighter weight
  • Noise Floor
  • Intermodulation Distortion (IMD)
  • Noise Power Ratio (NPR)