Texas Instruments

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 QuantityPrice
IC ADC 12BIT PIPELINED 48VQFNADS41B29IRGZ25IC ADC 12BIT PIPELINED 48VQFN0 - Immediate$44.93View Details
IC ADC 12BIT PIPELINED 48VQFNADS41B29IRGZRIC ADC 12BIT PIPELINED 48VQFN0 - Immediate
34746 - Marketplace		$52.38View Details
IC ADC 14BIT PIPELINED 48VQFNADS41B49IRGZRIC ADC 14BIT PIPELINED 48VQFN0 - Immediate$77.70View Details
EVAL MODULE FOR ADS41B29ADS41B29EVMEVAL MODULE FOR ADS41B291 - Immediate$268.35View Details
EVAL BOARD FOR ADC3683ADS41B49EVMEVAL BOARD FOR ADC36832 - Immediate$268.35View Details
Published: 2011-02-25

Related Articles and Blogs

The Precision Challenge in Industrial Measurement The dirty, noisy, messy Industrial Factory environment would seem to be the last place one would expect to find high technology.