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ADC

GUNTOJU ANAND KUMAR
Intellectual 340 points
Other Parts Discussed in Thread: TM4C123GH6PGE

I am using TM4C123GH6PGE .In Data sheet ADC conversion time  is given as 1micro second.I want to know this conversion time is for single input  or it will be same for multiple inputs also.If I use all the 24 channels of ADC inputs what will be the conversion time and sampling time ?

  • 0
    Guru 20670 points
    Hi Guntoju,

    In the datasheet it clearly states that the 1MSPS is by using both ADC modules. Check 13.3.2.5 Sample Phase Control

    All the channels are muxed, any of the 2 available ADCs can use them all. But each ADC can only do 1 sample at a time, so,
    2 ADCs with the method for 1MSPS, with 24 channels, 12*1us = 12us total sampling time for the 24 channels.