SBAS894A April 2018 – October 2018 ADS112C04
A ΔΣ modulator is used in the ADS112C04 to convert the analog input voltage into a pulse code modulated (PCM) data stream. The modulator runs at a modulator clock frequency of fMOD = fCLK / 4, where fCLK is provided by the internal oscillator. The oscillator frequency, and therefore also the modulator frequency, depend on the selected operating mode. Table 11 shows the oscillator and modulator frequencies for the different operating modes.
|Normal mode||1.024 MHz||256 kHz|
|Turbo mode||2.048 MHz||512 kHz|