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ADC212-100 and ADC212-50 Difference

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ADC212-100 and ADC212-50 Difference

Postby spock » Tue May 03, 2005 8:22 pm

I do have an ADC212-100 and an ADC212-50. When I want to use them with both channel selected, the ADC212-100 requires that the specified sampling be set to twice the needed value to work properly, but this is not the case for the ADC212-50. In other words, when I call the adc200_set_timebase(&SamplingPeriodInt, &IsSlow, ADCTimebase) function for the ADC212-100, the ADCTimebase parameter must be decreased by 1 if both channels are enabled. This is not required for the ADC212-50. Any explanations?


Stephan :)

Postby Sarah » Thu May 05, 2005 9:24 am

Hi Stephan

Thank you for your post.

The reason that you need to decrease it by one is that the ADC212/100 reaches the 100MS/s speed by using both ADCs but for one channel. This is why this is not available on 2 channels - because each channel then has it's own ADC. This is also why you must decrease the timebase by one - because timebase zero is for when using both ADCs for just one channel.

Hope this helps

Best Regards

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