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Frequent questions

  • [FAQ] ADC Noise: How do you calculate the amount of reference noise passing into your system?

    How do you calculate the amount of reference noise passing into your system when using Delta-Sigma ADCs?

  • [FAQ] ADC Noise: Is there such a thing as too much gain?

    Other Parts Discussed in Thread: ADS1261 Is there such a thing as too much gain when using precision Delta-Sigma ADCs?

  • [FAQ] ADC Noise: If you add an external amplifier to the input of an ADC, how does this affect system noise performance?

    If you add an external amplifier to the input of a Delta-Sigma ADC, how does this affect system noise performance?

  • [FAQ] ADC Noise: What is ENBW and why is it important?

    What is ENBW and why is it important for Delta-Sigma ADCs?

  • [FAQ] ADC Noise: What is the best noise parameter to use for system noise analysis?

    What is the best noise parameter to use for system noise analysis when using Delta-Sigma ADCs?

  • [FAQ] ADC Noise: How is ADC noise measured and specified?

    How is noise measured and specified for Delta-Sigma ADCs?

  • [FAQ] ADC Noise: What types of noise can you expect to find in ADCs?

    What type of noise can you expect to find in Delta-Sigma ADCs?

  • [FAQ] How do I reject undesired frequency content by adjusting the clock frequency or oversampling ratio of a Delta-Sigma ADC?

    Other Parts Discussed in Thread: ADS127L01 Can you explain how adjusting the clock frequency or oversampling ratio of a Delta-Sigma ADC can be used to reject undesired interference in my frequency spectrum? Regards,

  • [FAQ] How does the digital filter frequency response of a Delta-Sigma ADC scale with clock frequency?

    Other Parts Discussed in Thread: ADS124S08 Can you explain how the digital filter frequency response of a Delta-Sigma ADC scales with clock frequency? Regards,

  • [FAQ] PCB Layout Guidelines and Grounding Recommendations for High-Resolution ADCs

    Other Parts Discussed in Thread: LM27762 I am laying out a PCB that uses a precision 24-bit ADC. What are TI's recommendations for PCB layout? Also, should I split the ground plane between analog and digital circuits?

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