ADS41B29/B49 250MSPS Ultra-Low Power ADC

Texas Instruments' 14-/12-Bit, 250MSPS, ultra-low power ADC with analog buffers

ADS41B29/B49 250MSPS Ultra-Low Power ADCTexas Instruments' ADS41B29/B49 buffers are members of the ultra-low Power ADS4xxx analog-to-digital converter (ADC) family that feature integrated analog input buffers. These devices use innovative design techniques to achieve high dynamic performance, while consuming extremely low power. The analog input pins have buffers with benefits of constant performance and input impedance across a wide frequency range. These devices have features such as digital gain and offset correction. The gain option can be used to improve SFDR performance at lower full-scale input ranges, especially at high input frequencies.

Features
  • ADS41B49: 14-Bit, 250MSPS
  • ADS41B29: 12-Bit, 250MSPS
  • Integrated high-impedance analog input buffer:
    • Input capacitance: 2pF
    • 200MHz input resistance: 3kΩ
  • Maximum sample rate: 250MSPS
    • 1.8V analog power: 180mW
    • 3.3V buffer power: 96mW
    • I/O power: 135mW (DDR LVDS)
  • High dynamic performance:
    • SNR: 69dBFS at 170MHz
    • SFDR: 82.5dBc at 170MHz
  • Output interface:
    • Double data rate (DDR) LVDS with programmable swing and strength:
      • Standard swing: 350mV
      • Low swing: 200mV
      • Default strength: 100Ω termination
      • 2× strength: 50Ω termination
    • 1.8V parallel CMOS interface also supported
  • Programmable gain for SNR/SFDR trade-off
  • DC Offset Correction

Ultra Low Power ADC

ImageManufacturer Part NumberDescriptionAvailable Quantity
ADS41B29IRGZT datasheet linkIC ADC 12BIT SRL 250MSPS 48VQFNADS41B29IRGZTIC ADC 12BIT SRL 250MSPS 48VQFN835 - Immediate
2250 - Factory Stock
ADS41B29IRGZT product page link
ADS41B49IRGZT datasheet linkIC ADC 14BIT SRL 250MSPS 48VQFNADS41B49IRGZTIC ADC 14BIT SRL 250MSPS 48VQFN1082 - Immediate
7000 - Factory Stock
ADS41B49IRGZT product page link
ADS41B49IRGZ25 datasheet linkIC ADC 14BIT SRL 250MSPS 48VQFNADS41B49IRGZ25IC ADC 14BIT SRL 250MSPS 48VQFN0ADS41B49IRGZ25 product page link
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Published: 2011-02-25