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Home » NEWEST Products » New by Manufacturer » Texas Instruments » ADS4149 14-Bit Ultralow-Power ADC - TI
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Texas Instruments ADS4149 14-Bit Ultralow-Power ADC
Texas Instruments ADS4149 14-Bit Ultralow-Power ADC

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TI ADS4149 14-Bit Ultralow-Power ADC

Texas Instruments ADS4149 14-Bit Ultralow-Power Analog-to-Digital Converter (ADC) is ideal for multi-carrier, wide bandwidth communications applications, especially in MRI machines, and features sampling rates up to 250MSPS. This TI ADC uses innovative design techniques to achieve high dynamic performance, while consuming extremely low power at 1.8V supply. ADS4149 has fine gain options that can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies. They include a dc offset correction loop that can be used to cancel the ADC offset. At lower sampling rates, the ADC automatically operates at scaled down power with no loss in performance.


Features
  • Maximum Sample Rate: 250MSPS
  • Ultralow Power with 1.8V Single Supply:
    • 201mW Total Power at 160MSPS
    • 265mW Total Power at 250MSPS
  • High Dynamic Performance:
    • SNR: 70.6dBFS at 170MHz
    • SFDR: 84dBc at 170MHz
  • Dynamic Power Scaling with Sample Rate
  • Output Interface:
    • Double Data Rate (DDR) LVDS with Programmable Swing and Strength
      • Standard Swing: 350mV
      • Low Swing: 200mV
      • Default Strength: 100Ω Termination
      • 2x Strength: 50Ω Termination
  • 1.8V Parallel CMOS Interface Also Supported
  • Programmable Gain up to 6dB for SNR/SFDR Trade-Off
  • DC Offset Correction
  • Supports Low Input Clock Amplitude Down To 200mVPP
  • Package: QFN-48 (7mm × 7mm)
Applications
  • Multi-Carrier, Wide Bandwidth Communications
    • MRI

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