Analog Input >> General Properties >> Digitizer/ADC >> Timing Mode

NI-DAQmx C Reference Help

Edition Date: January 2019

Part Number: 370471AM-01

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Data Type: int32
Description: Specifies the ADC timing mode, controlling the tradeoff between speed and effective resolution. Some ADC timing modes provide increased powerline noise rejection. On devices that have an AI Convert clock, this setting affects both the maximum and default values for Rate. You must use the same ADC timing mode for all channels on a device, but you can use different ADC timing modes for different devices in the same task.


Valid values

DAQmx_Val_Automatic 16097 Uses the most appropriate supported timing mode based on the Sample Clock Rate.
DAQmx_Val_HighResolution 10195 Increases resolution and noise rejection while decreasing conversion rate.
DAQmx_Val_HighSpeed 14712 Increases conversion rate while decreasing resolution.
DAQmx_Val_Best50HzRejection 14713 Improves 50 Hz noise rejection while decreasing noise rejection at other frequencies.
DAQmx_Val_Best60HzRejection 14714 Improves 60 Hz noise rejection while decreasing noise rejection at other frequencies.
DAQmx_Val_Custom 10137 Use Custom Timing Mode to specify a custom value controlling the tradeoff between speed and resolution.



You can get/set/reset this property using:

  DAQmxGetAIADCTimingMode

  DAQmxSetAIADCTimingMode

  DAQmxResetAIADCTimingMode

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